Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites
Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The nu...
Ausführliche Beschreibung
Autor*in: |
Qiaoyue Xu [verfasserIn] Junhong Zheng [verfasserIn] Xiwu Yan [verfasserIn] Hongtao Nie [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2020 |
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Übergeordnetes Werk: |
In: Electronic Journal of Biotechnology - Elsevier, 2016, 48(2020), Seite 23-28 |
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Übergeordnetes Werk: |
volume:48 ; year:2020 ; pages:23-28 |
Links: |
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DOI / URN: |
10.1016/j.ejbt.2020.09.003 |
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DOAJ053606655 |
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10.1016/j.ejbt.2020.09.003 doi (DE-627)DOAJ053606655 (DE-599)DOAJ250099377c4d4be383b6aef7e6972c92 DE-627 ger DE-627 rakwb eng TP248.13-248.65 QH301-705.5 Qiaoyue Xu verfasserin aut Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 Alleles EST Genetic diversity Germplasm Hard clam Locus Biotechnology Biology (General) Junhong Zheng verfasserin aut Xiwu Yan verfasserin aut Hongtao Nie verfasserin aut In Electronic Journal of Biotechnology Elsevier, 2016 48(2020), Seite 23-28 (DE-627)320604713 (DE-600)2020598-3 07173458 nnns volume:48 year:2020 pages:23-28 https://doi.org/10.1016/j.ejbt.2020.09.003 kostenfrei https://doaj.org/article/250099377c4d4be383b6aef7e6972c92 kostenfrei http://www.sciencedirect.com/science/article/pii/S0717345820300427 kostenfrei https://doaj.org/toc/0717-3458 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2020 23-28 |
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10.1016/j.ejbt.2020.09.003 doi (DE-627)DOAJ053606655 (DE-599)DOAJ250099377c4d4be383b6aef7e6972c92 DE-627 ger DE-627 rakwb eng TP248.13-248.65 QH301-705.5 Qiaoyue Xu verfasserin aut Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 Alleles EST Genetic diversity Germplasm Hard clam Locus Biotechnology Biology (General) Junhong Zheng verfasserin aut Xiwu Yan verfasserin aut Hongtao Nie verfasserin aut In Electronic Journal of Biotechnology Elsevier, 2016 48(2020), Seite 23-28 (DE-627)320604713 (DE-600)2020598-3 07173458 nnns volume:48 year:2020 pages:23-28 https://doi.org/10.1016/j.ejbt.2020.09.003 kostenfrei https://doaj.org/article/250099377c4d4be383b6aef7e6972c92 kostenfrei http://www.sciencedirect.com/science/article/pii/S0717345820300427 kostenfrei https://doaj.org/toc/0717-3458 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2020 23-28 |
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10.1016/j.ejbt.2020.09.003 doi (DE-627)DOAJ053606655 (DE-599)DOAJ250099377c4d4be383b6aef7e6972c92 DE-627 ger DE-627 rakwb eng TP248.13-248.65 QH301-705.5 Qiaoyue Xu verfasserin aut Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 Alleles EST Genetic diversity Germplasm Hard clam Locus Biotechnology Biology (General) Junhong Zheng verfasserin aut Xiwu Yan verfasserin aut Hongtao Nie verfasserin aut In Electronic Journal of Biotechnology Elsevier, 2016 48(2020), Seite 23-28 (DE-627)320604713 (DE-600)2020598-3 07173458 nnns volume:48 year:2020 pages:23-28 https://doi.org/10.1016/j.ejbt.2020.09.003 kostenfrei https://doaj.org/article/250099377c4d4be383b6aef7e6972c92 kostenfrei http://www.sciencedirect.com/science/article/pii/S0717345820300427 kostenfrei https://doaj.org/toc/0717-3458 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2020 23-28 |
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10.1016/j.ejbt.2020.09.003 doi (DE-627)DOAJ053606655 (DE-599)DOAJ250099377c4d4be383b6aef7e6972c92 DE-627 ger DE-627 rakwb eng TP248.13-248.65 QH301-705.5 Qiaoyue Xu verfasserin aut Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 Alleles EST Genetic diversity Germplasm Hard clam Locus Biotechnology Biology (General) Junhong Zheng verfasserin aut Xiwu Yan verfasserin aut Hongtao Nie verfasserin aut In Electronic Journal of Biotechnology Elsevier, 2016 48(2020), Seite 23-28 (DE-627)320604713 (DE-600)2020598-3 07173458 nnns volume:48 year:2020 pages:23-28 https://doi.org/10.1016/j.ejbt.2020.09.003 kostenfrei https://doaj.org/article/250099377c4d4be383b6aef7e6972c92 kostenfrei http://www.sciencedirect.com/science/article/pii/S0717345820300427 kostenfrei https://doaj.org/toc/0717-3458 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2020 23-28 |
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10.1016/j.ejbt.2020.09.003 doi (DE-627)DOAJ053606655 (DE-599)DOAJ250099377c4d4be383b6aef7e6972c92 DE-627 ger DE-627 rakwb eng TP248.13-248.65 QH301-705.5 Qiaoyue Xu verfasserin aut Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 Alleles EST Genetic diversity Germplasm Hard clam Locus Biotechnology Biology (General) Junhong Zheng verfasserin aut Xiwu Yan verfasserin aut Hongtao Nie verfasserin aut In Electronic Journal of Biotechnology Elsevier, 2016 48(2020), Seite 23-28 (DE-627)320604713 (DE-600)2020598-3 07173458 nnns volume:48 year:2020 pages:23-28 https://doi.org/10.1016/j.ejbt.2020.09.003 kostenfrei https://doaj.org/article/250099377c4d4be383b6aef7e6972c92 kostenfrei http://www.sciencedirect.com/science/article/pii/S0717345820300427 kostenfrei https://doaj.org/toc/0717-3458 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 48 2020 23-28 |
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TP248.13-248.65 QH301-705.5 Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites Alleles EST Genetic diversity Germplasm Hard clam Locus |
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Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites |
abstract |
Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 |
abstractGer |
Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 |
abstract_unstemmed |
Background: Meretrix petechialis is one of the commercially important marine bivalves. In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. Electron J Biotechnol 2020;48. https://doi.org/10.1016/j.ejbt.2020.09.003 |
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Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites |
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In this study, we selected six highly polymorphic EST-derived microsatellite markers to assess the genetic diversity and population differentiation on nine wild populations of Meretrix petechialis. Results: The number of alleles detected per locus ranged from 4 to 30 (mean NA = 27.5) with a total of 165 alleles. The mean value of observed and expected heterozygosities varied from 0.717 to 0.861 and from 0.797 to 0.856, respectively. Meanwhile, the result of Neighbor-joining and overall FST = 0.214 (P < 0.01) reveled that M. petechialis populations from GX are the farthest populations, a certain degree of genetic variation among individuals in each population and the genetic differentiation is significant. Conclusions: GX population has high genetic diversity among individual, and there are certain differences in genetic characteristics among different populations. This study will provide a basis for the domestication and cultivation of genetic diversity of M. petechialis population and the protection of clam germplasm resources. How to cite: Xu Q, Zheng J, Yan X, et al. Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derived microsatellites. 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