New clades of euthyneuran gastropods (Mollusca) from 28S rRNA sequences
New clades of euthyneuran gastropods (Mollusca) from 28S rRNA sequences
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DOI：
10.1006/mpev.2001.0926
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发表时间：
2001-05-01
影响因子：
4.1
通讯作者：
Tillier, S
中科院分区：
文献类型：
--
作者：
Dayrat, B;Tillier, A;Tillier, S
最近的形态学和分子生物学的结果euthyneuran腹足类，其中包括后鳃和肺，大大减少了以前假设的决议，其系统发育关系。除了最近的形态学结果，28 S rRNA的D1和D2结构域的序列在这里进行了分析，简约的31个真神经种。根据ILD试验，分子和先前的形态学数据集不一致，无法同时分析形态学和分子数据。根据Bremer的Combinable Component Consensus，构建了一个新的进化树，并得到了以下支持的分子结果：后鳃类中一个新的进化支的单系性，包括活跃游动的真神经类（Euthyneura），即远洋裸体类（Gymnosomata）和囊体类（Thecosomata）加底栖拟盾目（Anaspidea）;并对柱眼目单系性的新确认进行了讨论。(C)北京：科学出版社.
Recent morphological and molecular results on phylogeny of euthyneuran gastropods, which include opisthobranchs and pulmonates, have greatly diminished previous supposed resolution of their phylogenetic relationships. In addition to recent morphological results, sequences of the D1 and D2 domains of the 28S rRNA are here analyzed by parsimony for 31 euthyneuran species. The molecular and previous morphological data sets were not congruent according to an ILD test, and morphological and molecular data could not be analyzed simultaneously. Consequently Bremer's Combinable Component Consensus was used to obtain a new tree, with the following supported molecular results: monophyly of a new clade of opisthobranchs including actively swimming Euthyneura, i.e,, pelagic Gymnosomata and Thecosomata plus benthic Anaspidea; fist molecular confirmation of monophylies of Hygrophila, including Chilina, Acteonoidea, and Sacoglossa, which include both shell-bearing species and slugs; and new confirmation of the monophyly of Stylommatophora, Morphological characters which support the new clades obtained here are discussed. (C) 2001 Academic Press.