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首页> 外文期刊>Marine biology >Genetic diversity in two barnacle species, Chthamalus stellatus and Tesseropora atlantica (Crustacea, Cirripedia), with different larval dispersal modes in the archipelago of the Azores
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Genetic diversity in two barnacle species, Chthamalus stellatus and Tesseropora atlantica (Crustacea, Cirripedia), with different larval dispersal modes in the archipelago of the Azores

机译：在亚速尔群岛的幼虫传播方式不同的两个藤壶物种（Chthamalus stellatus和Tesseropora atlantica）（甲壳纲，Cirripedia）的遗传多样性

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摘要

ISSRs (Inter Simple Sequence Repeats) were employed to compare the genetic structure of Chthamalus stellatus and Tesseropora atlantica in the Azores. The two barnacles differ as regards life cycle: the former conducting pelagic life for about 22 days, the latter for only 24 h. Thirty individuals of each species were analysed from four locations of three Azorean islands. Five ISSR primers produced, respectively, 117 and 79 polymorphic bands in C. stellatus and T. atlantica. Estimates of among-samples genetic diversity suggested extensive connectivity in the former species and isolation in the latter. AMOVA further supported these results by attributing 2% of genetic variance to the among-islands component of C. stellatus and 30% to T. atlantica. Results are consistent with expectations based on species life history and corroborate the importance of pelagic stages in determining the degree of genetic structuring in benthic marine invertebrates.
机译：使用ISSR（内部简单序列重复）比较了亚速尔群岛的Chthamalus stellatus和Tesseropora atlantica的遗传结构。两种藤壶在生命周期方面有所不同：前藤进行的浮游生命大约为22天，后者仅为24小时。从三个亚速尔群岛的四个位置分析了每种物种的三十个人。五种ISSR引物分别在C.stellatus和T.atlantica中产生了117和79个多态性条带。样本间遗传多样性的估计表明，前者具有广泛的联系，而后者则具有孤立性。 AMOVA通过将2％的遗传变异归因于St. Cella的岛间成分，并将30％的遗传归属于T. atlantica来进一步支持这些结果。结果与基于物种生活史的预期一致，并证实了浮游阶段在确定底栖海洋无脊椎动物遗传结构程度方面的重要性。

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    《Marine biology》 |2009年第12期|2441-2450|共10页
  • 作者

    Federica Gabriella Pannacciulli; Georgia Manetti; Ferruccio Maltagliati;

  • 作者单位

    Marine Environment Research Centre, ENEA, PO Box 224, 19100 La Spezia, Italy;

    Marine Environment Research Centre, ENEA, PO Box 224, 19100 La Spezia, Italy Dipartimento di Biologia, Universita di Pisa, Via Derna 1, 56126 Pisa, Italy;

    Dipartimento di Biologia, Universita di Pisa, Via Derna 1, 56126 Pisa, Italy;

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