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Phylogenetic relationships of cyprinidae (Teleostei:Cypriniformes) inferred from the partial S6K1 gene sequences and implication of indel sites in intron 1

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Science China(Life Sciences) 2007年第6期50卷 780-788页

作者： KONG XiangHui1,2, WANG XuZhen1, GAN XiaoNi1, LI JunBing1 & HE ShunPing1 1 Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China 2 College of Life Science, Henan Normal University, Xinxiang 453007, China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China College of Life Science Henan Normal University Xinxiang 453007 China

The family cyprinidae is widely distributed in East Asia,; has the important phylogenetic significance in the fish evolution. In this study, the 5′ end partial sequences (containing exon 1, exon 2; indel 1) of S6K1 gene were obtained from 30 representative species in cyprinidae; outgroup using PCR amplification; sequencing. The phylogenetic relationships of cyprinidae were reconstructed with neighbor joining (NJ), maximum parsimony (MP), maximum likelihood (ML),; Bayesian methods. Myxocyprinus asiaticus (Catostomidae) was assigned to the outgroup taxon. Similar phylogenetic relationships within the family cyprinidae were achieved with the four analyses. Leuciscini; Barbini were monophyletic lineages respectively with the high nodal supports. Leuciscini comprises Hypophthalmichthyinae, Xenocyprinae, Cultrinae, Gobioninae, Acheilognathinae; East Asian species of Leuciscinae; Danioninae. Monophyly of East Asian clade was supported with high nodal support. Barbini comprises Schizothoracinae, Barbinae, Cyprininae; Labeoninae. The monophyletic lineage consisting of Danio rerio, D. myersi,; Rasbora trilineata was basal in the tree. In addition, the large fragment indels in intron 1 were analyzed to improve the understanding of cyprinidae relationships. The results showed that the large fragment indels were correlated with the relations among species. Some conserved regions in intron 1 were thought to be involved in the functional regulation. However, no correlation was found between sequence variations; species characteristic size.

关键词： cyprinidae, S6K1 gene, phylogenetic relationships, intron

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Molecular phylogenetic relationships of Eastern Asian cyprinidae(Pisces:Cypriniformes)inferred from cytochrome b sequences

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Science China(Life Sciences) 2004年第2期47卷 130-138页

作者： Masayuki Kuwahara Tsuneo Nakajima Lake Biwa Museum 1091 Oroshimo Kusatsu Shiga 525 JapanLake Biwa Museum 1091 Oroshimo Kusatsu Shiga 525 Japan

Complete mitochondrial cytochrome b sequences of 54 species, including 18 newly sequenced, were analyzed to infer the phylogenetic relationships within the family cyprinidae in East Asia. Phylogenetic trees were generated using various tree-building methods, including Neighbor-joining (NJ), Maximum Parsimony (MP) and Maximum Likelihood (ML) methods, with Myxocyprinus asiaticus (family Catostomidae) as the designated outgroup. The results from NJ and ML methods were mostly similar, supporting some existing subfamilies within cyprinidae as monophyletic, such as Cultrinae, Xenocyprinae and Gobioninae (including Gobiobotinae). How-ever, genera within the subfamily 揇anioninae?did not form a monophyletic group. The subfamily Leuciscinae was divided into two unrelated groups: the Leuciscinae in East Asia forming as a monophyletic group together with Cultrinae and Xenocyprinae, while the Leuciscinae in Europe, Siberia, and North America as another monophyletic group. The monophyly of subfamily Cy-prininae sensu Howes was supported by NJ and ML trees and is basal in the tree. The position of Acheilognathinae, a widely accepted monophyletic group represented by Rhodeus sericeus, was not resolved.

关键词： cyprinidae, cytochrome b, molecular phylogeny, Pisces.

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