东南亚大陆5种长吻松鼠的支系系统关系(英文)  

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

作　　者：李松[1] 

机构地区：[1]中国科学院昆明动物研究所,昆明650223

出　　处：《兽类学报》2010年第2期119-126,共8页Acta Theriologica Sinica

基　　金：The Natural Science Foundation of Yunnan Province (2007C099M);the National Natural Science Foundation of China(30970332, 30730017);the National Basic Research Program of China 973 Program (2007CB411600)

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Paup4.0b10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。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.

关 键 词：长吻松鼠属 支系系统关系 东南亚 

分 类 号：Q959[生物学—动物学]