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Mitochondrial 16S rRNA sequence variations and phylogeny of the Chinese sisorid catfishes
GUO Xianguang; ZHANG Yaoguang; HE Shunping & CHEN Yiyu; He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2004
Source PublicationCHINESE SCIENCE BULLETIN
Volume49Issue:15Pages:1586-1595
AbstractPartial sequences of mitochondrial 16S rRNA gene were obtained by PCR amplification for comparisons among nine species of glyptosternoid fishes and six species of non-glyptosternoids representing 10 sisorid genera. There are compositional biases in the A-rich impaired regions and G-rich paired regions. A-G transitions are primarily responsible for the Ts/Tv bias in impaired regions. The overall substitution rate in impaired regions is almost two times higher than that in the paired regions. Saturation plots at comparable levels of sequence divergence demonstrate no saturation effects. Phylogenetic analyses using both maximum likelihood and Bayesian methods support the monophyly of Sisoridae. Chinese sisorid catfishes are composed of two major lineages, one represented by (Gagata (Bagarius, Glyptothorax)) and the other by "glyptosternoids + Pseudecheneis". The glyptosternoids may not be a monophyletic group. A previous hypothesis referring to Pseudecheneis as the sister group of monophyletic glyptosternoids, based on morphological evidence, is not supported by the molecular data. Pseudecheneis is shown to be a sister taxon of Glaridoglanis. Pareuchiloglanis might be paraphyletic with Pseudexostoma and Euchiloglanis. Our results also support the hypothesis that Pareuchiloglanis anteanalis might be considered as the synonyms of Pareuchiloglanis sinensis, and genus Euchiloglanis might have only one valid species, Euchiloglanis davidi.
KeywordSisoridae Glyptosternoids Mitochondrial 16s Rrna Gene Phylogeny
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; SW China Normal Univ, Sch Life Sci, Chongqing 400715, Peoples R China
Subject AreaMultidisciplinary Sciences
Indexed BySCI
Language英语
WOS IDWOS:000224314400007
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9408
Collection期刊论文
Corresponding AuthorHe, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
GUO Xianguang,ZHANG Yaoguang,HE Shunping & CHEN Yiyu,et al. Mitochondrial 16S rRNA sequence variations and phylogeny of the Chinese sisorid catfishes[J]. CHINESE SCIENCE BULLETIN,2004,49(15):1586-1595.
APA GUO Xianguang,ZHANG Yaoguang,HE Shunping & CHEN Yiyu,&He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2004).Mitochondrial 16S rRNA sequence variations and phylogeny of the Chinese sisorid catfishes.CHINESE SCIENCE BULLETIN,49(15),1586-1595.
MLA GUO Xianguang,et al."Mitochondrial 16S rRNA sequence variations and phylogeny of the Chinese sisorid catfishes".CHINESE SCIENCE BULLETIN 49.15(2004):1586-1595.
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