Journal Article

The complete mitochondrial genomes of two species from Sinocyclocheilus (Cypriniformes: Cyprinidae) and a phylogenetic analysis within Cyprininae

Wu, X, Wang, L, Chen, S, Zan, R, Xiao, H and Zhang, Y

Record Number:
3522
Year:
2010
Journal:
Molecular Biology Reports
Pages:
2163-2171
Volume:
37
Abstract:
We determined the complete mitochondrial DNA sequences for two species of surface- and cave-dwelling-cyprinid fishes, Sinocyclocheilus grahami and S. altishoulderus. Sequence comparison of 13 protein-coding genes shows that the mutation pattern of each single gene is quite similar to those of other vertebrate animal species. Analysis of the ratios of Ka/Ks at these loci between Sinocyclocheilus and two other cyprinid species (Cyprinus carpio and Procypris rabaudi) show that Ka/Ks ratios are differed, consistent with purifying selection and variation in functional constraint among genes. Bayesian analysis and maximum likelihood analysis of the concatenated mitochondrial protein sequences for 14 cyprinid taxa support the monophyly of the family Cyprininae, and further confirm the monophyly of the genus Sinocyclocheilus. The two Sinocyclocheilus species fall within the Cyprinion-Onychostoma lineage, including Cyprinus, Carassius, and Procypris, rather than among the Barbinae, as previously suggested on morphological grounds. KW: Sinocyclocheilus grahami, Sinocyclocheilus altishoulderus, Mitochondrial DNA, Phylogenetic relationship, Cyprininae.
Times Cited:
1
Related Records:
Li, W.X. and Lan, J. H. (1992)
A new genus and three new species of Cyprinidae from Guangxi, China
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