东南亚大陆5 种长吻松鼠的支系系统关系

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东南亚大陆5 种长吻松鼠的支系系统关系

李松

中国科学院昆明动物研究所,昆明 650223

出版日期:2010-05-27 发布日期:2010-03-02

A cladistic phylogeny of the Plain long-nosed squirrels (Sciuridae,Dremomys) from the mainland of southeastern Asia based on morphological data

Li Song

Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming 650223,China

Online:2010-05-27 Published:2010-03-02

摘要/Abstract

摘要： 基于Hennig 支系系统原理,本研究分析并编码了分布于东南亚大陆5 种长吻松鼠头骨及外形共计32 个性
状特征,运用Paup 4.0b10 软件构建上述5 种的支系系统关系。结果显示:D. pyrrhomerus 和D. rufigenis 均为独立的有效种,D. lokriah 是Dremomys 中最早分化的类群,其次是D. pernyi; D. pyrrhomerus 与D. rufigenis 间的支系关系最近,D. gularis 与他们构成姐妹群关系。基于上述支系系统关系,本研究尝试探讨了5 种长吻松鼠的分化、分布与其环境演变的关系。

关键词: 长吻松鼠属, 支系系统关系, 东南亚

Abstract: Using Hennig’s cladistic principle,in this study,we analysed and coded 32 cranial and external characters of
five Dremomys species distributed throughout the mainland of southeastern Asia. With Paup 4. 0b10 cladistic software,the cladistic phylogeny of five Dremomys species were reconstructed. The results indicate that D. pyrrhomerus and D. rufigenis are valid species; D. lokriah is basal to the others,and the second is D. pernyi; the cladistic relationships between D. pyrrhomerus and D. rufigenis are closest,and D. gularis acts as their sister group. Based on these five Dremomys species’cladistic phylogenetic pattern,we also explore the relationships between differentiation and dispersal of species and environmental evolution.

Key words: Cladistic phylogenies, Dremomys, Southeastern Asia

李松. 东南亚大陆5 种长吻松鼠的支系系统关系[J]. .

Li Song. A cladistic phylogeny of the Plain long-nosed squirrels (Sciuridae,Dremomys) from the mainland of southeastern Asia based on morphological data[J]. .