Microsatellite DNA variation of oval squid, Sepioteuthis sp. 2 reveals a single fishery stock on the coastline of mainland Japan
Microsatellite DNA variation of oval squid, Sepioteuthis sp. 2 reveals a single fishery stock on the coastline of mainland Japan
复制标题
椭圆形鱿鱼 (Sepioteuthis sp.) 的微卫星 DNA 变异。
DOI：
10.1007/s12562-015-0905-4
复制
发表时间：
2015
影响因子：
1.9
通讯作者：
Kenichi Ohara and Tetsuya Umino
中科院分区：
文献类型：
--
作者：
Satoshi Tomano;Gustavo Sanchez;Kanako Ueno;Yukio Ueta;Kenichi Ohara and Tetsuya Umino
卵形鱿鱼的遗传多样性水平及群体分化。使用高度多态性DNA标记对日本大陆附近的2个地区进行了检测。10个微卫星位点的遗传多样性较低，平均杂合度ho = 0.68，总等位基因数为10.0，这可能与近期种群扩张史有关。通过fst值（globalFST:−0.0006;pairwiseFST:−0.0046 ~ 0.0083）、rst值（globalRST: 0.0025; pairwiseRST:−0.0076 ~ 0.03）、基于Cavalli-Sforza和Edwards弦距的邻联树、贝叶斯聚类或三个地理类群（日本海、Seto内海和太平洋；FCT=−0.0005）的分析，日本沿海12个站点的种群在遗传上是均匀的，应该被认为是一个单一的渔业种群。在广岛采集的样本中，不同年份的等位基因频率也显示出高度的相似性。影响这种同质性的因素包括无阻碍基因流动的遗传交换、幼虫的扩散和海蛾成虫的积极迁移。2.
The level of genetic diversity and population differentiation of oval squidShiro-ikaSepioteuthissp. 2 around mainland Japan were examined using highly polymorphic DNA markers. Ten microsatellite loci showed relatively low genetic diversity (average observed heterozygosityHO= 0.68, overall mean number of allelesNA= 10.0) as compared with other squid, which may be explained by a recent history of population expansion. Populations from 12 sites along the coastline of Japan were genetically homogeneous, as measured byFSTvalues (globalFST: −0.0006; pairwiseFST: from −0.0046 to 0.0083),RSTvalues (globalRST: 0.0025; pairwiseRST: from −0.0076 to 0.03), a neighbor-joining (NJ) tree based on Cavalli-Sforza and Edwards chord distance, Bayesian clustering or analyses of three geographical groups (Sea of Japan, Seto Inland Sea, and Pacific Ocean;FCT= −0.0005), and should be considered as a single fishery stock. Allele frequencies also showed a high degree of similarity across different years in the samples taken from Hiroshima. Factors influencing this homogeneity include genetic exchange without barriers preventing gene flow, larval dispersal, and active adult migration ofSepioteuthissp. 2.