Distinct genetic differentiation and species diversification within two marine nematodes with different habitat preference in Antarctic sediments
作者: Freija HauquierFrederik LeliaertAnnelien RigauxSofie DeryckeAnn Vanreusel
作者单位: 1Ghent University
2Botanic Garden Meise
3Royal Belgian Institute of Natural Sciences (RBINS)
刊名: BMC Evolutionary Biology, 2017, Vol.17 (1)
来源数据库: Springer Nature Journal
DOI: 10.1186/s12862-017-0968-1
关键词: AntarcticaContinental shelfCryptic speciesDesmodoraDispersalNematodaPhylogenyPopulation geneticsSabatieria
英文摘要: Dispersal ability, population genetic structure and species divergence in marine nematodes are still poorly understood, especially in remote areas such as the Southern Ocean. We investigated genetic differentiation of species and populations of the free-living endobenthic nematode genera Sabatieria and Desmodora using nuclear 18S rDNA, internal transcribed spacer (ITS) rDNA, and mitochondrial cytochrome oxidase I (COI) gene sequences. Specimens were collected at continental shelf depths (200–500 m) near the Antarctic Peninsula, Scotia Arc and eastern side of the Weddell Sea. The two nematode genera co-occurred at all sampled locations, but with different vertical distribution in the sediment. A combination of phylogenetic (GMYC, Bayesian Inference, Maximum Likelihood) and population...
原始语种摘要: Dispersal ability, population genetic structure and species divergence in marine nematodes are still poorly understood, especially in remote areas such as the Southern Ocean. We investigated genetic differentiation of species and populations of the free-living endobenthic nematode genera Sabatieria and Desmodora using nuclear 18S rDNA, internal transcribed spacer (ITS) rDNA, and mitochondrial cytochrome oxidase I (COI) gene sequences. Specimens were collected at continental shelf depths (200–500 m) near the Antarctic Peninsula, Scotia Arc and eastern side of the Weddell Sea. The two nematode genera co-occurred at all sampled locations, but with different vertical distribution in the sediment. A combination of phylogenetic (GMYC, Bayesian Inference, Maximum Likelihood) and population...
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:3.285 (2012)

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关键词翻译
关键词翻译
  • genetic 遗传的
  • preference 优选
  • nematodes 线虫类
  • species 
  • especially 特别地
  • Antarctica 南极洲
  • population 母体
  • still 
  • delimitation 定界
  • spacer 垫片