文献类型：期刊文献

英文题名：Comparative Analysis of Genetic Diversity and Population Structure of Sipunculus nudus as Revealed by Mitochondrial COI Sequences

作者：Du, Xiaodong[1];Chen, Zian[1];Deng, Yuewen[1];Wang, Qingheng[1]

机构：[1]Guangdong Ocean Univ, Fishery Coll, Zhanjiang 524025, Peoples R China

年份：2009

卷号：47

期号：11-12

起止页码：884

外文期刊名：BIOCHEMICAL GENETICS

收录：SCI-EXPANDED(收录号：WOS:000272015400014)、、Scopus(收录号：2-s2.0-70450227500)、WOS

基金：The work was financially supported by the Natural Science Foundation of Guangdong Province under contract No. 30371026. The authors are grateful to the reviewers for critical comments on the manuscript.

语种：英文

外文关键词：Sipunculus nudus; Genetic diversity; Population structure; COI gene

外文摘要：Genetic diversity and population structure of Sipunculus nudus were evaluated using a 652 base pair fragment of the mitochondrial cytochrome oxidase I gene. The populations were collected from Beihai, Sanya, and Xiamen. A total of 71 polymorphic sites defined 16 distinct haplotypes. The mean haplotype diversity and nucleotide diversity of the three populations were 0.9354 +/- A 0.0168 and 0.0035 +/- A 0.0018, respectively. Analysis at the intrapopulation level showed that the Beihai population had the greatest haplotype and nucleotide diversity, followed by the Xiamen and Sanya populations. Analysis of molecular variance showed significant genetic differentiation among the three populations (Fst = 0.0796, P < 0.05). The present results revealed that S. nudus populations had a high level of genetic diversity and distinct population structures.