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首页> 外文期刊>ICES Journal of Marine Science >A barrier to gene flow in the Asian paddle crab, Charybdis japonica, in the Yellow Sea
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A barrier to gene flow in the Asian paddle crab, Charybdis japonica, in the Yellow Sea

机译：黄海亚洲pad蟹Charybdis japonica基因流动的障碍

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摘要

Three primary factors affecting genetic patterns of marine species in the Northwestern Pacific Ocean have been proposed: isolation and population expansion during Pleistocene glacial cycles, ocean currents facilitating the gene flow, and the Yangtze River outflow imposing a physical barrier to gene flow. Here, we examined these factors affecting population structuring of the Asian paddle crab, Charybdis japonica, in the Yellow Sea, East China Sea, and adjacent areas. Genetic variation in nine populations of C. japonica (n = 169) was determined from partial mitochondrial cytochrome c oxidase subunit I sequences. Among the 14 haplotypes identified, a dominant haplotype H1 was present in all populations, and a relatively abundant localized haplotype H2 was found in four of the northern populations. Furthermore, the frequency of the common haplotype H1 decreased from south to north. A genetic discontinuity was detected in Haizhou Bay, which divided species into two groups (north group and south group). The lack of genetic structure in the south and north groups indicates high dispersal of C. japonica within groups. Local marine gyres in Haizhou Bay might be responsible for the divergence of the north and south groups. Our study highlights the importance of local marine gyres for influencing genetic structure in marine coastal species in the Northwestern Pacific, especially in species spawning inshore.
机译：已经提出了影响西北太平洋海洋物种遗传模式的三个主要因素：更新世冰川周期期间的隔离和种群扩张，促进基因流动的洋流以及对基因流动施加物理障碍的长江外流。在这里，我们研究了影响黄海，东海及邻近地区亚洲pad蟹（Charybdis japonica）种群结构的这些因素。从部分线粒体细胞色素C氧化酶亚基I序列确定了九个粳稻种群（n = 169）的遗传变异。在确定的14个单倍型中，所有种群中均存在优势单倍型H1，在北部的四个种群中发现了相对丰富的局部单倍型H2。此外，普通单倍型H1的频率从南到北降低。在海州湾检测到遗传不连续性，将物种分为两组（北组和南组）。南部和北部群体缺乏遗传结构，表明粳稻在群体内的高度分散。海州湾的当地海旋可能是南北群差异的原因。我们的研究凸显了本地海旋回对影响西北太平洋海洋沿海物种，尤其是近岸产卵物种的遗传结构的重要性。

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  • 来源
    《ICES Journal of Marine Science》 |2015年第5期|1440-1448|共9页
  • 作者

    Han Zhiqiang; Zheng Wei; Zhu Wenbin; Yu Cungen; Shui Bonian; Gao Tianxiang;

  • 作者单位

    Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China;

    Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China;

    Marine Fisheries Res Inst Zhejiang, Zhejiang Prov Key Lab Technol Res Sustainable Uti, Zhoushan 316021, Zhejiang, Peoples R China;

    Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China;

    Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China;

    Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China|Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao 266003, Shandong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Charybdis japonica; genetic structure; local ocean current; Pleistocene isolation;

    机译：夏枯草;遗传结构;局部洋流;更新世隔离;

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