Molecular phylogeny and biogeography of caecilians from Southeast Asia (Amphibia, Gymnophiona, Ichthyophiidae), with special reference to high cryptic species diversity in Sundaland

Nishikawa, Kanto and Matsui, Masafumi and Yong, Hoi Sen and Norhayati Ahmad, and Yambun, Paul and Daicus M. Belabut, and Ahmad Sudin, and Amir Hamidy, and Orlov, Nikolai L. and Ota, Hidetoshi and Yoshikawa, Natsuhiko and Tominaga, Atsushi and Shimada, Tomohiko (2012) Molecular phylogeny and biogeography of caecilians from Southeast Asia (Amphibia, Gymnophiona, Ichthyophiidae), with special reference to high cryptic species diversity in Sundaland. Molecular Phylogenetics and Evolution, 63 (3). pp. 714-723. ISSN 1055-7903

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Official URL: http://dx.doi.org/10.1016/j.ympev.2012.02.017

Abstract

We investigated the phylogenetic relationships and estimated the history of species diversification and character evolution in two ichthyophiid genera: Caudacaecilia and Ichthyophis. We estimated the phylogenetic relationships of 67 samples from 33 localities in Southeast Asia from 3840-bp sequences of the mitochondrial 12S rRNA, 16S rRNA, and cyt b genes using Bayesian inference, maximum likelihood, and maximum parsimony methods. The Southeast Asian samples formed a well-supported clade differentiated from a South Asian sample. The Southeast Asian clade was divided into two subclades, one containing samples from South China, Indochina, Malay Peninsula, and Java. The other consisted of samples from Borneo and the Philippines. Neither Caudacaecilia nor Ichthyophis was monophyletic, nor did samples with or without light stripes lateral to the body form clades. We found several distinct sympatric lineages and undescribed species, especially from Sundaland.

Item Type:Article
Uncontrolled Keywords:Biogeography, Caecilians, Mitochondrial DNA, Phylogeny, Southeast Asia, Sundaland, Amphibian protein, Cytochrome b, Ribosome RNA, RNA 16S, RNA, ribosomal, 12S, Amphibia, Animal, Article, Bayes theorem, Biological model, Classification, Genetics, Multilocus sequence typing, Phylogeny, Phylogeography, Southeast Asia, Species difference, Species differentiation, Statistical model, Sympatry, Amphibian Proteins, Amphibians, Animals, Asia, Southeastern, Bayes Theorem, Cytochromes b, Genetic Speciation, Likelihood Functions, Models, Genetic, Multilocus Sequence Typing, Phylogeny, Phylogeography, RNA, Ribosomal, RNA, Ribosomal, 16S, Species Specificity, Sympatry, Amphibia, Caudacaecilia, Gymnophiona, Ichthyophiidae, Ichthyophis, cytochrome b, 9035-37-4, Amphibian Proteins, Cytochromes b, 9035-37-4, RNA, Ribosomal, RNA, Ribosomal, 16S, RNA, Ribosomal, 12S
Subjects:?? QL640-669.3 ??
Divisions:SCHOOL > Institute for Tropical Biology and Conservation
ID Code:5538
Deposited By:IR Admin
Deposited On:04 Dec 2012 17:20
Last Modified:18 Feb 2015 11:20

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