基于线粒体Cyt b基因的线蛱蝶亚科的系统发育

基于线粒体Cytb基因部分序列,以波蛱蝶为外群,采用邻接法、最大简约法和贝叶斯法分别构建了中国线蛱蝶亚科10属25种蝶类的系统发育树,探讨了各主要类群间的系统发育关系。其结果表明,所有线蛱蝶亚科聚为两大枝:第一枝包括环蛱蝶属、菲蛱蝶属、蟠蛱蝶属和缕蛱蝶属,其中缕蛱蝶属与环蛱蝶族亲缘关系较近;第二枝包括丽蛱蝶属、穆蛱蝶属、线蛱蝶属、带蛱蝶属、律蛱蝶属和翠蛱蝶属,其中线蛱蝶属为非单系群,翠蛱蝶属和律蛱蝶属则为单系发生,并构成姐妹群。

Phylogenetic Relationships of Butterflies in the Subfamily Limenitinae Based on Mitochondrial Cytochrome b Gene Sequences

The present study investigated phylogenetic relationships of the subfalimy Limenitinae based on sequence data of the mitochondrial Cyt b gene of 25 species,covering 10 genera of the subfamily,using Ariadne ariadne as outgroup.Phylogenetic trees were reconstructed with neighbor-joining(NJ),maximum parsimony(MP)and Bayesian inference(BI)methods.It is indicated that the involved species of this subfamily clustered into two clades:the first clade includes those of the genus Neptis,Phaedyma,Pantoporia and Lintinga;the second one includes those of the genus Parthenos,Moduza,Limenitis,Athyma,Lexias and Euthalia.The genus Limenitis is suggested to be monophyletic;and the genera Euthalia and Lexias proved to be sister to each other and form a monophyletic group.The genus Litinga appears to be more closely related to Neptini than to Limenitini.However,phylogenetic positions of some genera,such as Phaedyma,Pantoporia and Lintinga,are not well-resolved in the present study.