A divergent lineage among Octopus minor (Sasaki, 1920) populations in the Northwest Pacific supported by DNA barcoding
A divergent lineage among Octopus minor (Sasaki, 1920) populations in the Northwest Pacific supported by DNA barcoding
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西北太平洋小章鱼 (Sasaki, 1920) 种群中 DNA 条形码支持的不同谱系
DOI：
10.1080/17451000.2018.1427866
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发表时间：
2018-03
影响因子：
1.1
通讯作者：
Zheng Xiaodong
中科院分区：
文献类型：
--
作者：
Xu Ran;Bo Qikang;Zheng Xiaodong
摘要小章鱼(Sasaki，1920)是中国重要的经济渔业资源。为了解小菜蛾的种群信息和系统地理地位，从11个不同的采样点扩增了线粒体细胞色素C氧化酶亚基I(COI，565 )和16S rRNA(493 )基因。单倍型和核苷酸多样性分析表明，连江的遗传多样性较高，荣成的遗传多样性较低，迫切需要采取有效的措施保护该地区的野生稻资源。宜兰个体单倍型和显着较高的成对ΦST是造成宜兰与其他10个群体遗传分化较大的原因。单倍型网络和两个簇的拓扑结构也支持不同的亚群(谱系A和谱系B)，这些亚群的遗传变异明显小于种间平均距离。台湾岛及其海峡可能成为限制大陆基因流动的天然屏障。大陆和台湾东海岸之间的遗传差异很大，这表明它们的遗传存量不同，这表明需要不同的管理策略。
ABSTRACT Octopus minor (Sasaki, 1920) is an important economic fishery resource in China. In order to explore the stock information and the phylogeographic status of O. minor, mitochondrial DNA cytochrome c oxidase subunit I (COI, 565 bp) and 16S rRNA (493 bp) genes were amplified from 11 different sampling locations. Genetic diversity evaluated by haplotypic and nucleotidic diversity implied high diversity in Lianjiang, and relatively low diversity in Rongcheng, which suggests that effective measures to protect the O. minor resource in this area are urgently required. Private haplotypes and remarkable higher pairwise ΦST in Yilan are responsible for the deep genetic divergence between Yilan and the 10 other populations. Haplotypes networks and two clusters’ topological structure also support the distinct subgroups (lineages A and lineages B), which apparently possess smaller genetic variation than mean interspecies distance. Taiwan island and its strait may act as a natural barrier that restricts the gene flow from the mainland. Deep genetic divergence between mainland and Taiwanese east coasts suggests different genetic stock, indicating that different management strategies are required.
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影响因子：
3.3
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影响因子：
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