Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae

Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the s...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Caetano, Ana Paula S. [verfasserIn] Cortez, Priscila A. [verfasserIn] Teixeira, Simone P. [verfasserIn] Oliveira, Paulo E. [verfasserIn] Carmello-Guerreiro, Sandra M. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	Adventitious embryony Apospory Autonomous apomixis Megagametogenesis Megasporogenesis Polyembryony

Übergeordnetes Werk:	Enthalten in: Plant systematics and evolution - Wien [u.a.] : Springer, 1974, 304(2017), 3 vom: 05. Dez., Seite 343-355
Übergeordnetes Werk:	volume:304 ; year:2017 ; number:3 ; day:05 ; month:12 ; pages:343-355

Links:	Volltext

DOI / URN:	10.1007/s00606-017-1480-1

Katalog-ID:	SPR007258607

Internformat


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100	1		\|a Caetano, Ana Paula S. \|e verfasserin \|4 aut
245	1	0	\|a Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
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520			\|a Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species.
650		4	\|a Adventitious embryony \|7 (dpeaa)DE-He213
650		4	\|a Apospory \|7 (dpeaa)DE-He213
650		4	\|a Autonomous apomixis \|7 (dpeaa)DE-He213
650		4	\|a Megagametogenesis \|7 (dpeaa)DE-He213
650		4	\|a Megasporogenesis \|7 (dpeaa)DE-He213
650		4	\|a Polyembryony \|7 (dpeaa)DE-He213
700	1		\|a Cortez, Priscila A. \|e verfasserin \|4 aut
700	1		\|a Teixeira, Simone P. \|e verfasserin \|4 aut
700	1		\|a Oliveira, Paulo E. \|e verfasserin \|4 aut
700	1		\|a Carmello-Guerreiro, Sandra M. \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Plant systematics and evolution \|d Wien [u.a.] : Springer, 1974 \|g 304(2017), 3 vom: 05. Dez., Seite 343-355 \|w (DE-627)254639089 \|w (DE-600)1463027-8 \|x 1615-6110 \|7 nnns
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856	4	0	\|u https://dx.doi.org/10.1007/s00606-017-1480-1 \|z lizenzpflichtig \|3 Volltext
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912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_39
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_120
912			\|a GBV_ILN_138
912			\|a GBV_ILN_150
912			\|a GBV_ILN_151
912			\|a GBV_ILN_152
912			\|a GBV_ILN_161
912			\|a GBV_ILN_170
912			\|a GBV_ILN_171
912			\|a GBV_ILN_187
912			\|a GBV_ILN_206
912			\|a GBV_ILN_213
912			\|a GBV_ILN_224
912			\|a GBV_ILN_230
912			\|a GBV_ILN_250
912			\|a GBV_ILN_267
912			\|a GBV_ILN_281
912			\|a GBV_ILN_285
912			\|a GBV_ILN_293
912			\|a GBV_ILN_370
912			\|a GBV_ILN_374
912			\|a GBV_ILN_602
912			\|a GBV_ILN_636
912			\|a GBV_ILN_647
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2001
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2006
912			\|a GBV_ILN_2007
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2009
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2018
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2026
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2031
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2037
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2039
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2055
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2057
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2070
912			\|a GBV_ILN_2086
912			\|a GBV_ILN_2088
912			\|a GBV_ILN_2093
912			\|a GBV_ILN_2106
912			\|a GBV_ILN_2107
912			\|a GBV_ILN_2108
912			\|a GBV_ILN_2110
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2116
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2119
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
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912			\|a GBV_ILN_2144
912			\|a GBV_ILN_2147
912			\|a GBV_ILN_2148
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2188
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2232
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2446
912			\|a GBV_ILN_2470
912			\|a GBV_ILN_2472
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_2548
912			\|a GBV_ILN_2946
912			\|a GBV_ILN_2949
912			\|a GBV_ILN_2951
912			\|a GBV_ILN_4012
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912			\|a GBV_ILN_4037
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912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4246
912			\|a GBV_ILN_4249
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4306
912			\|a GBV_ILN_4307
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4328
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4336
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4346
912			\|a GBV_ILN_4393
912			\|a GBV_ILN_4700
936	b	k	\|a 42.00 \|q ASE
951			\|a AR
952			\|d 304 \|j 2017 \|e 3 \|b 05 \|c 12 \|h 343-355

Indexfelder

author_variant	a p s c aps apsc p a c pa pac s p t sp spt p e o pe peo s m c g smc smcg
matchkey_str	article:16156110:2017----::nsadvriyfpmcimcaimiapceom
hierarchy_sort_str	2017
bklnumber	42.00
publishDate	2017
allfields	10.1007/s00606-017-1480-1 doi (DE-627)SPR007258607 (SPR)s00606-017-1480-1-e DE-627 ger DE-627 rakwb eng 580 ASE 42.00 bkl Caetano, Ana Paula S. verfasserin aut Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species. Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213 Cortez, Priscila A. verfasserin aut Teixeira, Simone P. verfasserin aut Oliveira, Paulo E. verfasserin aut Carmello-Guerreiro, Sandra M. verfasserin aut Enthalten in Plant systematics and evolution Wien [u.a.] : Springer, 1974 304(2017), 3 vom: 05. Dez., Seite 343-355 (DE-627)254639089 (DE-600)1463027-8 1615-6110 nnns volume:304 year:2017 number:3 day:05 month:12 pages:343-355 https://dx.doi.org/10.1007/s00606-017-1480-1 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_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 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_2018 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_2056 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_2946 GBV_ILN_2949 GBV_ILN_2951 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_4346 GBV_ILN_4393 GBV_ILN_4700 42.00 ASE AR 304 2017 3 05 12 343-355
spelling	10.1007/s00606-017-1480-1 doi (DE-627)SPR007258607 (SPR)s00606-017-1480-1-e DE-627 ger DE-627 rakwb eng 580 ASE 42.00 bkl Caetano, Ana Paula S. verfasserin aut Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species. Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213 Cortez, Priscila A. verfasserin aut Teixeira, Simone P. verfasserin aut Oliveira, Paulo E. verfasserin aut Carmello-Guerreiro, Sandra M. verfasserin aut Enthalten in Plant systematics and evolution Wien [u.a.] : Springer, 1974 304(2017), 3 vom: 05. Dez., Seite 343-355 (DE-627)254639089 (DE-600)1463027-8 1615-6110 nnns volume:304 year:2017 number:3 day:05 month:12 pages:343-355 https://dx.doi.org/10.1007/s00606-017-1480-1 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_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 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_2018 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_2056 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_2946 GBV_ILN_2949 GBV_ILN_2951 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_4346 GBV_ILN_4393 GBV_ILN_4700 42.00 ASE AR 304 2017 3 05 12 343-355
allfields_unstemmed	10.1007/s00606-017-1480-1 doi (DE-627)SPR007258607 (SPR)s00606-017-1480-1-e DE-627 ger DE-627 rakwb eng 580 ASE 42.00 bkl Caetano, Ana Paula S. verfasserin aut Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species. Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213 Cortez, Priscila A. verfasserin aut Teixeira, Simone P. verfasserin aut Oliveira, Paulo E. verfasserin aut Carmello-Guerreiro, Sandra M. verfasserin aut Enthalten in Plant systematics and evolution Wien [u.a.] : Springer, 1974 304(2017), 3 vom: 05. Dez., Seite 343-355 (DE-627)254639089 (DE-600)1463027-8 1615-6110 nnns volume:304 year:2017 number:3 day:05 month:12 pages:343-355 https://dx.doi.org/10.1007/s00606-017-1480-1 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_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 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_2018 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_2056 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_2946 GBV_ILN_2949 GBV_ILN_2951 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_4346 GBV_ILN_4393 GBV_ILN_4700 42.00 ASE AR 304 2017 3 05 12 343-355
allfieldsGer	10.1007/s00606-017-1480-1 doi (DE-627)SPR007258607 (SPR)s00606-017-1480-1-e DE-627 ger DE-627 rakwb eng 580 ASE 42.00 bkl Caetano, Ana Paula S. verfasserin aut Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species. Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213 Cortez, Priscila A. verfasserin aut Teixeira, Simone P. verfasserin aut Oliveira, Paulo E. verfasserin aut Carmello-Guerreiro, Sandra M. verfasserin aut Enthalten in Plant systematics and evolution Wien [u.a.] : Springer, 1974 304(2017), 3 vom: 05. Dez., Seite 343-355 (DE-627)254639089 (DE-600)1463027-8 1615-6110 nnns volume:304 year:2017 number:3 day:05 month:12 pages:343-355 https://dx.doi.org/10.1007/s00606-017-1480-1 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_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 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_2018 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_2056 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_2946 GBV_ILN_2949 GBV_ILN_2951 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_4346 GBV_ILN_4393 GBV_ILN_4700 42.00 ASE AR 304 2017 3 05 12 343-355
allfieldsSound	10.1007/s00606-017-1480-1 doi (DE-627)SPR007258607 (SPR)s00606-017-1480-1-e DE-627 ger DE-627 rakwb eng 580 ASE 42.00 bkl Caetano, Ana Paula S. verfasserin aut Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species. Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213 Cortez, Priscila A. verfasserin aut Teixeira, Simone P. verfasserin aut Oliveira, Paulo E. verfasserin aut Carmello-Guerreiro, Sandra M. verfasserin aut Enthalten in Plant systematics and evolution Wien [u.a.] : Springer, 1974 304(2017), 3 vom: 05. Dez., Seite 343-355 (DE-627)254639089 (DE-600)1463027-8 1615-6110 nnns volume:304 year:2017 number:3 day:05 month:12 pages:343-355 https://dx.doi.org/10.1007/s00606-017-1480-1 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_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 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_2018 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_2056 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_2946 GBV_ILN_2949 GBV_ILN_2951 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_4346 GBV_ILN_4393 GBV_ILN_4700 42.00 ASE AR 304 2017 3 05 12 343-355
language	English
source	Enthalten in Plant systematics and evolution 304(2017), 3 vom: 05. Dez., Seite 343-355 volume:304 year:2017 number:3 day:05 month:12 pages:343-355
sourceStr	Enthalten in Plant systematics and evolution 304(2017), 3 vom: 05. Dez., Seite 343-355 volume:304 year:2017 number:3 day:05 month:12 pages:343-355
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Adventitious embryony Apospory Autonomous apomixis Megagametogenesis Megasporogenesis Polyembryony
dewey-raw	580
isfreeaccess_bool	false
container_title	Plant systematics and evolution
authorswithroles_txt_mv	Caetano, Ana Paula S. @@aut@@ Cortez, Priscila A. @@aut@@ Teixeira, Simone P. @@aut@@ Oliveira, Paulo E. @@aut@@ Carmello-Guerreiro, Sandra M. @@aut@@
publishDateDaySort_date	2017-12-05T00:00:00Z
hierarchy_top_id	254639089
dewey-sort	3580
id	SPR007258607
language_de	englisch
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author	Caetano, Ana Paula S.
spellingShingle	Caetano, Ana Paula S. ddc 580 bkl 42.00 misc Adventitious embryony misc Apospory misc Autonomous apomixis misc Megagametogenesis misc Megasporogenesis misc Polyembryony Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
authorStr	Caetano, Ana Paula S.
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topic_title	580 ASE 42.00 bkl Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae Adventitious embryony (dpeaa)DE-He213 Apospory (dpeaa)DE-He213 Autonomous apomixis (dpeaa)DE-He213 Megagametogenesis (dpeaa)DE-He213 Megasporogenesis (dpeaa)DE-He213 Polyembryony (dpeaa)DE-He213
topic	ddc 580 bkl 42.00 misc Adventitious embryony misc Apospory misc Autonomous apomixis misc Megagametogenesis misc Megasporogenesis misc Polyembryony
topic_unstemmed	ddc 580 bkl 42.00 misc Adventitious embryony misc Apospory misc Autonomous apomixis misc Megagametogenesis misc Megasporogenesis misc Polyembryony
topic_browse	ddc 580 bkl 42.00 misc Adventitious embryony misc Apospory misc Autonomous apomixis misc Megagametogenesis misc Megasporogenesis misc Polyembryony
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hierarchy_parent_title	Plant systematics and evolution
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title	Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
ctrlnum	(DE-627)SPR007258607 (SPR)s00606-017-1480-1-e
title_full	Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
author_sort	Caetano, Ana Paula S.
journal	Plant systematics and evolution
journalStr	Plant systematics and evolution
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author_browse	Caetano, Ana Paula S. Cortez, Priscila A. Teixeira, Simone P. Oliveira, Paulo E. Carmello-Guerreiro, Sandra M.
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class	580 ASE 42.00 bkl
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author-letter	Caetano, Ana Paula S.
doi_str_mv	10.1007/s00606-017-1480-1
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author2-role	verfasserin
title_sort	unusual diversity of apomictic mechanisms in a species of miconia, melastomataceae
title_auth	Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
abstract	Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species.
abstractGer	Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species.
abstract_unstemmed	Abstract Apomixis, the asexual formation of seeds, seems to be a reproductive alternative for many angiosperms, involving various pathways with different genetic and ecological consequences. It is common in some megadiverse tropical groups such as Melastomataceae, of which approximately 70% of the species studied so far in the tribe Miconieae are autonomous apomictics. Hence, Miconia appears to be a good model for the study of the embryological pathways associated with apomixis. In the present study, we analyzed the polyploid and autonomous apomictic M. fallax and compared its embryology to that of the diploid and sexual M. pepericarpa, both treelets species common in the Cerrado, the Neotropical savanna areas of Central Brazil. Ovule structure and basic megasporogenesis and megagametogenesis events were similar in both species. However, M. fallax showed exclusive features associated with apomixis: aposporous embryo sac development, with the parthenogenetic development of unreduced egg cells, autonomous endosperm formation, nucellar embryony and polyembryony. Moreover, both gametophytic and sporophytic apomixis occurred in parallel to the development of a sexual embryo sac, a rarely described condition, which probably confers a great reproductive flexibility to the species.
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container_issue	3
title_short	Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae
url	https://dx.doi.org/10.1007/s00606-017-1480-1
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author2	Cortez, Priscila A. Teixeira, Simone P. Oliveira, Paulo E. Carmello-Guerreiro, Sandra M.
author2Str	Cortez, Priscila A. Teixeira, Simone P. Oliveira, Paulo E. Carmello-Guerreiro, Sandra M.
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doi_str	10.1007/s00606-017-1480-1
up_date	2024-07-04T02:36:07.054Z
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Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae

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