A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development
Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnM...
Ausführliche Beschreibung
Autor*in: |
Zhu, Yun [verfasserIn] Dun, Xiaoling [verfasserIn] Zhou, Zhengfu [verfasserIn] Xia, Shengqian [verfasserIn] Yi, Bin [verfasserIn] Wen, Jing [verfasserIn] Shen, Jinxiong [verfasserIn] Ma, Chaozhi [verfasserIn] Tu, Jinxing [verfasserIn] Fu, Tingdong [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2009 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Plant molecular biology - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981, 72(2009), 1-2 vom: 28. Okt. |
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Übergeordnetes Werk: |
volume:72 ; year:2009 ; number:1-2 ; day:28 ; month:10 |
Links: |
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DOI / URN: |
10.1007/s11103-009-9556-0 |
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Katalog-ID: |
SPR016678508 |
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245 | 1 | 2 | |a A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
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520 | |a Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. | ||
650 | 4 | |a Brassica napus |7 (dpeaa)DE-He213 | |
650 | 4 | |a Tapetum |7 (dpeaa)DE-He213 | |
650 | 4 | |a Cell wall |7 (dpeaa)DE-He213 | |
650 | 4 | |a Abscisic acid |7 (dpeaa)DE-He213 | |
650 | 4 | |a KIN1 |7 (dpeaa)DE-He213 | |
650 | 4 | |a Recessive epistatic genic male sterility |7 (dpeaa)DE-He213 | |
700 | 1 | |a Dun, Xiaoling |e verfasserin |4 aut | |
700 | 1 | |a Zhou, Zhengfu |e verfasserin |4 aut | |
700 | 1 | |a Xia, Shengqian |e verfasserin |4 aut | |
700 | 1 | |a Yi, Bin |e verfasserin |4 aut | |
700 | 1 | |a Wen, Jing |e verfasserin |4 aut | |
700 | 1 | |a Shen, Jinxiong |e verfasserin |4 aut | |
700 | 1 | |a Ma, Chaozhi |e verfasserin |4 aut | |
700 | 1 | |a Tu, Jinxing |e verfasserin |4 aut | |
700 | 1 | |a Fu, Tingdong |e verfasserin |4 aut | |
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10.1007/s11103-009-9556-0 doi (DE-627)SPR016678508 (SPR)s11103-009-9556-0-e DE-627 ger DE-627 rakwb eng 580 ASE 42.43 bkl 48.58 bkl Zhu, Yun verfasserin aut A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 Dun, Xiaoling verfasserin aut Zhou, Zhengfu verfasserin aut Xia, Shengqian verfasserin aut Yi, Bin verfasserin aut Wen, Jing verfasserin aut Shen, Jinxiong verfasserin aut Ma, Chaozhi verfasserin aut Tu, Jinxing verfasserin aut Fu, Tingdong verfasserin aut Enthalten in Plant molecular biology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981 72(2009), 1-2 vom: 28. Okt. (DE-627)269758658 (DE-600)1475712-6 1573-5028 nnns volume:72 year:2009 number:1-2 day:28 month:10 https://dx.doi.org/10.1007/s11103-009-9556-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.43 ASE 48.58 ASE AR 72 2009 1-2 28 10 |
spelling |
10.1007/s11103-009-9556-0 doi (DE-627)SPR016678508 (SPR)s11103-009-9556-0-e DE-627 ger DE-627 rakwb eng 580 ASE 42.43 bkl 48.58 bkl Zhu, Yun verfasserin aut A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 Dun, Xiaoling verfasserin aut Zhou, Zhengfu verfasserin aut Xia, Shengqian verfasserin aut Yi, Bin verfasserin aut Wen, Jing verfasserin aut Shen, Jinxiong verfasserin aut Ma, Chaozhi verfasserin aut Tu, Jinxing verfasserin aut Fu, Tingdong verfasserin aut Enthalten in Plant molecular biology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981 72(2009), 1-2 vom: 28. Okt. (DE-627)269758658 (DE-600)1475712-6 1573-5028 nnns volume:72 year:2009 number:1-2 day:28 month:10 https://dx.doi.org/10.1007/s11103-009-9556-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.43 ASE 48.58 ASE AR 72 2009 1-2 28 10 |
allfields_unstemmed |
10.1007/s11103-009-9556-0 doi (DE-627)SPR016678508 (SPR)s11103-009-9556-0-e DE-627 ger DE-627 rakwb eng 580 ASE 42.43 bkl 48.58 bkl Zhu, Yun verfasserin aut A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 Dun, Xiaoling verfasserin aut Zhou, Zhengfu verfasserin aut Xia, Shengqian verfasserin aut Yi, Bin verfasserin aut Wen, Jing verfasserin aut Shen, Jinxiong verfasserin aut Ma, Chaozhi verfasserin aut Tu, Jinxing verfasserin aut Fu, Tingdong verfasserin aut Enthalten in Plant molecular biology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981 72(2009), 1-2 vom: 28. Okt. (DE-627)269758658 (DE-600)1475712-6 1573-5028 nnns volume:72 year:2009 number:1-2 day:28 month:10 https://dx.doi.org/10.1007/s11103-009-9556-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.43 ASE 48.58 ASE AR 72 2009 1-2 28 10 |
allfieldsGer |
10.1007/s11103-009-9556-0 doi (DE-627)SPR016678508 (SPR)s11103-009-9556-0-e DE-627 ger DE-627 rakwb eng 580 ASE 42.43 bkl 48.58 bkl Zhu, Yun verfasserin aut A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 Dun, Xiaoling verfasserin aut Zhou, Zhengfu verfasserin aut Xia, Shengqian verfasserin aut Yi, Bin verfasserin aut Wen, Jing verfasserin aut Shen, Jinxiong verfasserin aut Ma, Chaozhi verfasserin aut Tu, Jinxing verfasserin aut Fu, Tingdong verfasserin aut Enthalten in Plant molecular biology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981 72(2009), 1-2 vom: 28. Okt. (DE-627)269758658 (DE-600)1475712-6 1573-5028 nnns volume:72 year:2009 number:1-2 day:28 month:10 https://dx.doi.org/10.1007/s11103-009-9556-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.43 ASE 48.58 ASE AR 72 2009 1-2 28 10 |
allfieldsSound |
10.1007/s11103-009-9556-0 doi (DE-627)SPR016678508 (SPR)s11103-009-9556-0-e DE-627 ger DE-627 rakwb eng 580 ASE 42.43 bkl 48.58 bkl Zhu, Yun verfasserin aut A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 Dun, Xiaoling verfasserin aut Zhou, Zhengfu verfasserin aut Xia, Shengqian verfasserin aut Yi, Bin verfasserin aut Wen, Jing verfasserin aut Shen, Jinxiong verfasserin aut Ma, Chaozhi verfasserin aut Tu, Jinxing verfasserin aut Fu, Tingdong verfasserin aut Enthalten in Plant molecular biology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1981 72(2009), 1-2 vom: 28. Okt. (DE-627)269758658 (DE-600)1475712-6 1573-5028 nnns volume:72 year:2009 number:1-2 day:28 month:10 https://dx.doi.org/10.1007/s11103-009-9556-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.43 ASE 48.58 ASE AR 72 2009 1-2 28 10 |
language |
English |
source |
Enthalten in Plant molecular biology 72(2009), 1-2 vom: 28. Okt. volume:72 year:2009 number:1-2 day:28 month:10 |
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Enthalten in Plant molecular biology 72(2009), 1-2 vom: 28. Okt. volume:72 year:2009 number:1-2 day:28 month:10 |
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Article |
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topic_facet |
Brassica napus Tapetum Cell wall Abscisic acid KIN1 Recessive epistatic genic male sterility |
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580 |
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Plant molecular biology |
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Zhu, Yun @@aut@@ Dun, Xiaoling @@aut@@ Zhou, Zhengfu @@aut@@ Xia, Shengqian @@aut@@ Yi, Bin @@aut@@ Wen, Jing @@aut@@ Shen, Jinxiong @@aut@@ Ma, Chaozhi @@aut@@ Tu, Jinxing @@aut@@ Fu, Tingdong @@aut@@ |
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2009-10-28T00:00:00Z |
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3580 |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR016678508</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519142113.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201006s2009 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11103-009-9556-0</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR016678508</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11103-009-9556-0-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">580</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">42.43</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">48.58</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Zhu, Yun</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="2"><subfield code="a">A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2009</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. 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|
author |
Zhu, Yun |
spellingShingle |
Zhu, Yun ddc 580 bkl 42.43 bkl 48.58 misc Brassica napus misc Tapetum misc Cell wall misc Abscisic acid misc KIN1 misc Recessive epistatic genic male sterility A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
authorStr |
Zhu, Yun |
ppnlink_with_tag_str_mv |
@@773@@(DE-627)269758658 |
format |
electronic Article |
dewey-ones |
580 - Plants (Botany) |
delete_txt_mv |
keep |
author_role |
aut aut aut aut aut aut aut aut aut aut |
collection |
springer |
remote_str |
true |
illustrated |
Not Illustrated |
issn |
1573-5028 |
topic_title |
580 ASE 42.43 bkl 48.58 bkl A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development Brassica napus (dpeaa)DE-He213 Tapetum (dpeaa)DE-He213 Cell wall (dpeaa)DE-He213 Abscisic acid (dpeaa)DE-He213 KIN1 (dpeaa)DE-He213 Recessive epistatic genic male sterility (dpeaa)DE-He213 |
topic |
ddc 580 bkl 42.43 bkl 48.58 misc Brassica napus misc Tapetum misc Cell wall misc Abscisic acid misc KIN1 misc Recessive epistatic genic male sterility |
topic_unstemmed |
ddc 580 bkl 42.43 bkl 48.58 misc Brassica napus misc Tapetum misc Cell wall misc Abscisic acid misc KIN1 misc Recessive epistatic genic male sterility |
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ddc 580 bkl 42.43 bkl 48.58 misc Brassica napus misc Tapetum misc Cell wall misc Abscisic acid misc KIN1 misc Recessive epistatic genic male sterility |
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title |
A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
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(DE-627)SPR016678508 (SPR)s11103-009-9556-0-e |
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A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
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Zhu, Yun |
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Plant molecular biology |
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Plant molecular biology |
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2009 |
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Zhu, Yun Dun, Xiaoling Zhou, Zhengfu Xia, Shengqian Yi, Bin Wen, Jing Shen, Jinxiong Ma, Chaozhi Tu, Jinxing Fu, Tingdong |
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Elektronische Aufsätze |
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title_sort |
separation defect of tapetum cells and microspore mother cells results in male sterility in brassica napus: the role of abscisic acid in early anther development |
title_auth |
A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
abstract |
Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. |
abstractGer |
Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. |
abstract_unstemmed |
Abstract Male sterility is an important contributor to heterosis in Brassica napus L. The B. napus line 7-7365ABC is a recessive epistatic genic male sterile (REGMS) three-line system. The 7-7365A line with the genotype Bnms3ms3ms4ms4RfRf is male-sterile, while the 7-7365B line with the genotype BnMs3ms3ms4ms4RfRf is male-fertile, and 7-7365C with homozygous recessive genotypes at the three loci shows male fertility because the loss function of Bnrf gene causes the inhibition of the genetic trait of the double mutant Bnms3 Bnms4. Histological studies addressing male sterility, transcriptional regulation pathways and the role of abscisic acid (ABA) in the anther development of REGMS plants are reported here. In the male-sterile line 7-7365A, tapetum cell and microspore mother cell separation were affected, and this led to failure of microspore release. The activity of polygalacturonase and the expression of the pectin methylesterase gene (AT3g06830) were significantly downregulated. Nine genes were downregulated in 7-7365A compared to 7-7365B and 7-7365C, including genes specifically expressed in tapetum (A3, A9, MS1) and the ABA-responsive gene KIN1. ABA concentration in 7-7365B was significantly higher than in 7-7365A and 7-7365C in young flower buds. Furthermore, temperature treatment made some sterile 7-7365A flowers become fertile. The stamens in these flowers produced viable pollen, and filament elongation was restored to its level in 7-7365C. We propose that ABA might control the expression of genes involved in cell separation during early anther development. The REGMS phenotype could be controlled by a primary pathway of male sterile metabolism positively regulated by the BnMs3 gene and a supplementary pathway negatively regulated by the BnRf gene. |
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1-2 |
title_short |
A separation defect of tapetum cells and microspore mother cells results in male sterility in Brassica napus: the role of abscisic acid in early anther development |
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https://dx.doi.org/10.1007/s11103-009-9556-0 |
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|
score |
7.401272 |