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首页> 外文期刊>Marine biology >Recent history of the European Nassarius nitidus (Gastropoda): phylogeographic evidence of glacial refugia and colonization pathways
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Recent history of the European Nassarius nitidus (Gastropoda): phylogeographic evidence of glacial refugia and colonization pathways

机译：欧洲雀s（Gastropoda）的近期历史：冰川避难和定居途径的系统地理证据

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摘要

Because marine species respond differentially to factors governing survival and gene flow, closely related taxa may display dissimilar phylogeographic histories. New data for the patchily distributed gastropod Nassarius nitidus throughout its Atlantic-Mediterranean range (collected during 2008 and 2009) were used to investigate its phylogeography and recent demography. Results based on mitochondrial COI sequences of 422 N. nitidus individuals from 15 localities revealed contrasting phylogeographic and demographic patterns among N. nitidus populations from each basin. Data suggest the existence of two glacial refugia, one in the Atlantic, around the Iberian Peninsula, and the other in the Paleo-Mediterranean Sea (Adriatic). Bayesian skyline reconstructions suggest that the Adriatic population of N. nitidus remained largely unaffected by the Last Glacial Maximum (LGM), whereas the Iberian Atlantic region experienced dramatic exponential growth after its conclusion. Contemporary North Sea populations of N. nitidus are the endpoint of a leading-edge recoloni-zation process from a southern position. Additionally, a reanalysis of pre-existing material for the continuously distributed close congener N. reticulatus was used to compare both species in the late histories. In contrast to N. nitidus, N. reticulatus prospered during the LGM and experienced an earlier Atlantic expansion during the previous interglacial period. Despite similar life history and dispersal potential, the results here presented suggest that subtle differences in microhabitat requirements between the two species have had important consequences for their particular distribution in response to glacial events.
机译：由于海洋物种对控制生存和基因流的因素有不同的反应，因此密切相关的分类单元可能显示出不同的系统地理历史。整个大西洋-地中海范围（2008年和2009年收集）的腹足纲腹足纲雀s的新数据用于调查其系统志和近期的人口统计学。根据来自15个地区的422个针叶猪笼草个体的线粒体COI序列得出的结果显示，每个盆地的针叶猪笼草种群的系统地理和人口统计学模式都不同。数据表明存在两个冰川避难所，一个在伊比利亚半岛周围的大西洋，另一个在古地中海（亚得里亚海）。贝叶斯天际线的重建表明，尼迪斯猪笼草的亚得里亚海种群在很大程度上不受“最后冰川期”（LGM）的影响，而伊比利亚大西洋地区在得出结论后经历了指数级的增长。当代北针叶新猪笼草种群是从南部位置开始前沿的重新定殖过程的终点。此外，对连续分布的近缘网状猪笼草的已有材料进行了重新分析，以比较两个物种在近代史中的地位。与针状猪笼草相反，网状猪笼草在LGM期间繁荣了，并在前一个冰期间经历了较早的大西洋扩张。尽管有相似的生活史和散布潜力，但此处给出的结果表明，两种物种之间在微生境需求方面的细微差异对其响应冰川事件的特定分布产生了重要影响。

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  • 来源
    《Marine biology》 |2012年第9期|p.1871-1884|共14页
  • 作者

    Naiara Albaina; Jeanine L. Olsen; Lucia Couceiro; Jose Miguel Ruiz; Rodolfo Barreiro;

  • 作者单位

    Department of Ecology, Faculty of Sciences, Universidade da Coruna, 15071 Corufia, Spain;

    Marine Benthic Ecology and Evolution Group, Centre for Ecological and Evolutionary Studies, University of Groningen,Nijenborgh 7. 9747 AG Groningen, The Netherlands;

    Department of Ecology, Faculty of Sciences, Universidade da Coruna, 15071 Corufia, Spain;

    Department of Ecology, Faculty of Sciences, Universidade da Coruna, 15071 Corufia, Spain;

    Department of Ecology, Faculty of Sciences, Universidade da Coruna, 15071 Corufia, Spain;

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