NEW INSIGHTS INTO THE PHYLOGENY OF THE PYRAMIDELLIDAE (GASTROPODA)
NEW INSIGHTS INTO THE PHYLOGENY OF THE PYRAMIDELLIDAE (GASTROPODA)
复制标题
DOI：
10.1093/mollus/eyq027
复制
发表时间：
2011-02-01
影响因子：
1.2
通讯作者：
Klussmann-Kolb, Annette
中科院分区：
文献类型：
--
作者：
Dinapoli, Angela;Zinssmeister, Carmen;Klussmann-Kolb, Annette
一个多世纪以来，海洋体外寄生腹足动物家族的系统发育及其系统位置一直是一个有争议的问题。本研究利用53种腹足类动物的核(18S rDNA+28S rDNA)和线粒体(16S RDNA Cot)基因片段(其中包括9个金龟科-3个斑点金龟亚科和6个斑点金龟亚科)来推测金龟科的系统发育假说。对这四个基因组合数据集的贝叶斯分析揭示了单一系统学的金锥虫科。金字塔亚群Turbonillinae和Odostomiinae也恢复了单系进化。树的重建揭示了锥虫科深嵌在肺门内，这意味着这些体外寄生的海洋蜗牛是肺门起源的。然而，由于缺乏统计数据支持，无法明确推断金龟科的姐妹群。
The phylogeny of the marine ectoparasitic gastropod family Pyramidellidae and its systematic placement have been a matter of debate for over a century. We employed nuclear (18S rDNA + 28S rDNA) and mitochondrial (16S rDNA COT) gene fragments from 53 gastropod species (including 9 Pyramidellidae - 3 Turbonillinae and 6 Odostomiinae) in order to infer a phylogenetic hypothesis for Pyramidellidae. A Bayesian analysis of the combined data set of the four genes revealed monophyletic Pyramidellidae. The pyramidellid subgroups Turbonillinae and Odostomiinae were also recovered monophyletic. Tree reconstruction revealed Pyramidellidae deeply nested within Pulmonata implying a pulmonate origin of these ectoparasitic marine snails. However, the sister group of Pyramidellidae could not unambiguously be inferred due to lacking statistical support.