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- Title
Genetic diversity and differentiation of nine populations of the hard clam (Meretrix petechialis) assessed by EST-derivedmicrosatellites.
- Authors
Qiaoyue Xu; Junhong Zheng; Xiwu Yan; Hongtao Nie
- Abstract
Background: Meretrix petechialis is one of the commercially importantmarine 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 from4 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.
- Subjects
POPULATION differentiation; MICROSATELLITE repeats; CLAMS; GERMPLASM; GENETIC markers in plants; GENETIC markers; MANILA clam
- Publication
Electronic Journal of Biotechnology, 2020, Vol 48, p23
- ISSN
0717-3458
- Publication type
Article
- DOI
10.1016/j.ejbt.2020.09.003