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ISSR ANALYSIS ON GENETIC DIVERSITY OF STOCK AND WILD SOLEN GRANDIS POPULATIONS ALONG COASTAL AREAS OF CHINA
Author(s): 
Pages: 1398-1404
Year: Issue:  6
Journal: Oceanologia et Limnologia Sinica

Keyword:  Solen grandisISSRgenetic diversitygenetic structure;
Abstract: Due to overfishing and other reasons, wild Solen grandis resources decreased sharply, to which stock enhancement reproduction and release becomes a major supplemental way. To understand S. grandis germplasm resources and provide a scientific basis for the protection of S. grandis resource, we studied the genetic diversity of its populations along coastal areas of China. Five wild populations including Beihai(BH)(Guangxi), Qidong(QD)(Jiangsu), Rizhao(RZ)(Shandong), Yingkou(YK)(Liaoning), and Qinhuangdao(QH)(Hebei), and a stock population in Jiangjia sandbar(JJ)(Jiangsu), were selected and sampled for ISSR(inter-simple sequence repeat)analysis. Results show that S. grandis showed a high level of genetic diversity, and genetic differentiation among wild populations had been significant. Comparing with wild population QD, the genetic diversity of population JJ decreased, but the genetic differentiation between the two populations was not significant. Therefore, we could guarantee the quantity and quality of the parents, expand parental area to increase genetic diversity, and pay great attention to protecting the local precious germplasm not to be confounded.
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