Genetic diversity and population structure of the golden cuttlefish, Sepia esculenta (Cephalopoda: Sepiidae) indicated by microsatellite DNA variations
Genetic diversity and population structure of the golden cuttlefish, Sepia esculenta (Cephalopoda: Sepiidae) indicated by microsatellite DNA variations
复制标题
微卫星DNA变异表明金乌贼Sepia esculenta（头足类：Sepiidae）的遗传多样性和种群结构
DOI：
10.1111/j.1439-0485.2009.00294.x
复制
发表时间：
2009-12-01
影响因子：
1.1
通讯作者：
Taniguchi, Nobuhiko
中科院分区：
文献类型：
--
作者：
Zheng, Xiaodong;Ikeda, Minoru;Taniguchi, Nobuhiko
金乌贼（Sepia esculenta Hoyle，1885）是中国、日本和韩国的重要渔业资源。由于过去几十年的过度捕捞，这一渔业经历了严重的人口下降。为了给渔业管理提供指导，我们使用9个微卫星DNA位点估计了日本沿海沿着4个地点和中国1个地点（共281个个体）的遗传多样性和种群结构。金乌贼具有较高的遗传变异性，平均等位基因丰富度为15.8 ~ 21.4，平均杂合度为0.80 ~ 0.90。5个群体间存在微弱但显著的遗传分化，F-ST值均为0.020。这项研究中获得的有用信息将为今后如何微调这一物种和资源的养护和渔业管理措施提供见解。
The golden cuttlefish, Sepia esculenta Hoyle, 1885 (Cephalopoda: Sepiidae) is a valuable and important fishery resource for China, Japan and Korea. This fishery has experienced severe population decline largely due to overexploitation in past decades. To provide guidelines for fisheries management, we estimated genetic diversity and population structure across four locations along the coast of Japan and one location in China (a total 281 individuals) using nine microsatellite DNA loci. Sepia esculenta showed high genetic variability with mean allele richness ranging from 15.8 to 21.4, and mean heterozygosity from 0.80 to 0.90. Weak but significant genetic differentiation was present and the F-ST value was 0.020 across all five populations. The useful information obtained in this study will offer insights into how to fine-tune conservation and fishery management measures for this species and resource in the future.