• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Progress in Oceanography >The high diversity of Southern Ocean sea stars (Asteroidea) reveals original evolutionary pathways
【24h】

The high diversity of Southern Ocean sea stars (Asteroidea) reveals original evolutionary pathways

机译：南洋海洋恒星（令人肠道）的高多样性揭示了原始进化途径

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Benthic life in the Southern Ocean (SO) features unique life history traits and species assemblages, but the origin and evolution of many of these taxonomic groups is still unclear. Sea stars (Asteroidea) are a diversified and abundant component of benthic ecosystems in the SO, in which they can play key ecological roles. Former studies suggest that the diversity of the entire class is still poorly known and underestimated, hampering the assessment of the origin and evolution of the class in the SO. In the present study, we analyse spatial patterns of SO sea star diversity using an occurrence database of similar to 14,000 entries. The biogeographic analysis is coupled with the exploration of an extensive molecular phylogeny based on over 4,400 specimen sequences to inform, support and/or question the observed diversity patterns. We show that the current taxonomy of SO asteroids needs revision and that their diversity has generally been overlooked and misinterpreted. Molecular results highlight the recent diversification of most studied taxa, at genus and species levels, which supports an evolutionary scenario referring to successive invasion and exchange events between the SO and adjacent regions, and clade diversification during periods of rapid environmental changes driven by the succession of glacial cycles. Our work advocates for employing, and endorsing the use of extensive genetic barcode libraries for biodiversity studies.
机译：围岩寿命在南海（SO）具有独特的生活历史特质和物种组合，但许多这些分类群的起源和演变仍然不清楚。 Sea Stars（Asteroidea）是底栖生态系统的多样化和丰富的组成部分，在其中他们可以发挥主要生态作用。前研究表明，整个阶级的多样性仍然是知名度差不多的，低估，阻碍了对此类的起源和演变的评估。在本研究中，我们使用类似于14,000个条目的发生数据库分析所以海星多样性的空间模式。基于超过4,400种样品序列的基于超过4,400个样本序列，对观察和/或质疑观察和/或质疑观察到的多样性模式的探索，加速了生物地理分析。我们表明，目前的小行星的分类需要修改，并且它们的多样性通常被忽视并误解。分子结果突出了最近研究大多数研究生的多样化，属于近期和物种水平，这支持进化场景，指的是所以和邻近地区之间的连续入侵和交换事件，以及在通过连续推动的快速环境变化期间的思考多元化冰川周期。我们的工作倡导者雇用，并批准使用广泛的遗传条形码库进行生物多样性研究。

著录项

  • 来源
    《Progress in Oceanography》 |2021年第1期|102472.1-102472.11|共11页
  • 作者

    Moreau Camille; Jossart Quentin; Danis Bruno; Eleaume Marc; Christiansen Henrik; Guillaumot Charlene; Downey Rachel; Saucede Thomas;

  • 作者单位

    Univ Libre Bruxelles ULB Marine Biol Lab CP160-15 50 Av FD Roosevelt B-1050 Brussels Belgium|Univ Bourgogne Franche Comte CNRS Biogeosci UMR 6282 6 Bvd Gabriel F-21000 Dijon France;

    Univ Libre Bruxelles ULB Marine Biol Lab CP160-15 50 Av FD Roosevelt B-1050 Brussels Belgium|Vrije Univ Brussel VUB Marine Biol Pl Laan 2 B-1050 Brussels Belgium;

    Univ Libre Bruxelles ULB Marine Biol Lab CP160-15 50 Av FD Roosevelt B-1050 Brussels Belgium;

    Sorbonne Univ Museum Natl Hist Nat CNRS EPHE Inst Syst Evolut Biodiversite ISYEB 57 Rue Cuvier F-75005 Paris France;

    Katholieke Univ Leuven Lab Biodivers & Evolutionary Genom Leuven Belgium;

    Univ Libre Bruxelles ULB Marine Biol Lab CP160-15 50 Av FD Roosevelt B-1050 Brussels Belgium|Univ Bourgogne Franche Comte CNRS Biogeosci UMR 6282 6 Bvd Gabriel F-21000 Dijon France;

    Australian Natl Univ Fenner Sch Environm & Soc Linnaeus Way Canberra ACT 2601 Australia;

    Univ Bourgogne Franche Comte CNRS Biogeosci UMR 6282 6 Bvd Gabriel F-21000 Dijon France;

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

    Antarctica; COI mtDNA; Biodiversity; Echinodermata; Evolution; Phylogeography;

    机译：南极洲;COI MTDNA;生物多样性;Echinodermata;进化;播种;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号