Hyper-cryptic marine meiofauna: species complexes in Nemertodermatida.

Hyper-cryptic marine meiofauna: species complexes in Nemertodermatida.
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DOI:
10.1371/journal.pone.0107688
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Jondelius U
Jondelius U
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Meyer-Wachsmuth I;Curini Galletti M;Jondelius U

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纽皮动物是显微镜下的小型底栖海洋蠕虫。对来自世界各地33个地点的两个标称物种,沙生Sterreria psammicola和细长纽虫Nemertinoides elongatus的3个分子标记进行了测序。利用基因树、单倍型网络和多位点贝叶斯分析进行物种界定和验证。我们发现了20个支持物种,其中9个:Nemertinoides glandulosum n.sp.,N.冈木新种,布氏Sterreria boucheti n.sp.,S. lundini n.sp.,S. martindalei n.sp.,S.单石种,S. papuensis n.sp.,S. variabilis n.sp.和S.伊莱克斯种,包括基于核苷酸的诊断。分布格局表明,在一些物种的跨洋传播。在许多情况下发现同域种。这一小型底栖生物群体中隐藏的高度多样性意味着海洋多样性可能高于先前的估计。
Nemertodermatida are microscopically small, benthic marine worms. Specimens of two nominal species, Sterreria psammicola and Nemertinoides elongatus from 33 locations worldwide were sequenced for three molecular markers. Species delimitation and validation was done using gene trees, haplotype networks and multilocus Bayesian analysis. We found 20 supported species of which nine: Nemertinoides glandulosum n.sp., N. wolfgangi n.sp., Sterreria boucheti n.sp., S. lundini n.sp., S. martindalei n.sp., S. monolithes n.sp., S. papuensis n.sp., S. variabilis n.sp. and S. ylvae n.sp., are described including nucleotide-based diagnoses. The distribution patterns indicate transoceanic dispersal in some of the species. Sympatric species were found in many cases. The high level of cryptic diversity in this meiofauna group implies that marine diversity may be higher than previously estimated.
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