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首页> 外文期刊>Fisheries Science >Population genetic structure and gene flow in the Japanese sea cucumber Apostichopus japonicus across Toyama Bay, Japan
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Population genetic structure and gene flow in the Japanese sea cucumber Apostichopus japonicus across Toyama Bay, Japan

机译：日本富山湾日本刺参刺参的种群遗传结构和基因流

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摘要

The Japanese sea cucumber Apostichopus japonicus has a pelagic-lecithotrophic larva. Here, we clarify larval dispersal among Japanese sea cucumber populations by describing the levels of distinctiveness and gene flow among red and green variant populations of A. japonicus across Toyama Bay using 11 polymorphic microsatellite markers. Samples of Japanese sea cucumber populations were collected from three localities (Noto, Shinminato, and Uozu) around Toyama Bay. Geographically separated populations of red and green variants were determined to be genetically distinct, supported by phylogenetic analysis and the distinctiveness range values of pairwise multilocus estimates of F ST. Contemporary migration analyses indicated that the majority of estimated migration events occurred within A. japonicus populations comprised of only either red or green variants. In a historical gene flow analysis, two best-fit models (n-island and stepping stone models) showed circulation for the gene migration in Toyama Bay among red variant populations. Our results provide useful information on the genetic structure of Japanese sea cucumber populations and will be helpful for genetic conservation and fisheries management of sea cucumber populations in Toyama Bay.
机译：日本海参Apostichopus japonicus有上浮性-营养性幼虫。在这里，我们通过使用11种多态微卫星标记物描述富山湾的日本刺槐红色和绿色变异种群之间的独特性和基因流水平，从而阐明了日本海参种群之间的幼虫分布。从富山湾附近的三个地区（能登，新港和鱼津）收集了日本海参种群的样本。在系统发育分析和成对多位点F ST 的独特性范围值的支持下，确定了在地理上分离的红色和绿色变异体的种群具有遗传差异。当代的迁徙分析表明，估计的迁徙事件大多数发生在仅由红色或绿色变体组成的日本刺槐种群中。在历史基因流分析中，两个最合适的模型（n-岛和垫脚石模型）显示了富山湾中红色变异种群之间基因迁移的循环。我们的研究结果为日本海参种群的遗传结构提供了有用的信息，并将有助于富山湾海参种群的遗传保护和渔业管理。

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  • 来源
    《Fisheries Science》 |2012年第4期|p.775-783|共9页
  • 作者

    Taha Soliman; Manami Kanno; Akihiro Kijima; Yuji Yamazaki;

  • 作者单位

    Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan;

    Laboratory of Integrative Aquatic Biology, Graduate School of Agriculture Science, Tohoku University, Onagawa, Miyagi, 986-2242, Japan;

    Laboratory of Integrative Aquatic Biology, Graduate School of Agriculture Science, Tohoku University, Onagawa, Miyagi, 986-2242, Japan;

    Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Population structure; Gene flow; Microsatellite; Sea cucumber; Apostichopus japonicus;

    机译：种群结构;基因流;微卫星;海参;刺五加;

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