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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 25, No. 3, 2004, pp. 205-213
Bioline Code: zr04037
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 25, No. 3, 2004, pp. 205-213

 en Phylogenetic Relationships of Megophryid Genera (Anura:Megophryidae) Based on Partial Sequences of Mitochondrial 16 S rRNA Gene
ZHENG Yu-chi MO Bang-hui LIU Zhi-jun ZENG Xiao-mao


Phylogenetic relationships of 8 genera of Megophryidae (Anura) were discussed based on 25 partial sequences of mitochondrial 16 S rRNA gene.Maximum likelihood,maximum parsimony,and neighbor joining analyses were performed on the dataset.The ingroup was divided into two major clades,Clade 1 and Clade 2,on the gene tree.Clade 1 included Megophrys,Brachytarsophrys and Atympanophrys,while Leptolalax,Oreolalax,Scutiger,Leptobrachium and Vibrissaphora belonged to Clade 2.This met the result of morphological study.It was primarily estimated that the divergence age of two clades occurred 14.2-18.7 million years ago.The topology of Clade 1 did not support Megophrys to be a monophyletic group.In Clade 2,Leptolalax was believed to be a valid genus and was the taxon that occurred much early.

Megophryidae; 16 S rRNA; Phylogeny; Topology

© Copyright 2004 Kunming Institute of Zoology, the Chinese Academy of Sciences
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