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Molecular and morphological data suggest that Spinibarbus caldwelli (Nichols) (Teleostei : Cyprinidae) is a valid species
Tang, QY; Liu, HZ; Yang, XP; Nakajima, T; Liu, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2005-02-01
Source PublicationICHTHYOLOGICAL RESEARCH
ISSN1341-8998
Volume52Issue:1Pages:77-82
AbstractThe taxonomic problem of the cyprinid species of genus Spinibarbus, occurring in southern China and northern Vietnam, was resolved on the basis of molecular and morphological analyses. Spinibarbus caldwelli and Spinibarbus hollandi have a smooth posterior edge of the last unbranched dorsal fin ray among species in the genus. Spinibarbus caldwelli is currently regarded as a junior synonym of S. hollandi because of ambiguities in diagnostic characters. In this article, 11 mtDNA cytochrome b sequences of Spinibarbus specimens were analyzed together with Barbodes gonionotus and Puntius conchonius as outgroups. Our results showed that specimens identified as S. hollandi from Taiwan were different from those from the Asian mainland at a high level of genetic divergence (0.097-0.112), which is higher than that between the two valid species, S. sinensis and S. yunnanensis ( 0.089), and suggested that Taiwan specimens should be considered as a different species from the Asian mainland one. In a molecular phylogenetic analysis, the sister-group relationship between Taiwan specimens and the Asian mainland specimens was supported strongly by a high confidence level ( 100% in bootstrap value). Further analysis of morphological characters showed that overlap of diagnostic characters is much weaker than previously suggested. Taiwan specimens had 8 branched rays in the dorsal fin, whereas those from the mainland had almost 9-10. The molecular and morphological differences suggest S. caldwelli to be valid. The molecular divergence shows the genetic speciation of S. hollandi and S. caldwelli might have occurred 5.6-4.9 million years ago; the former could be a relict species in Taiwan, and the latter dispersed in the Asian mainland.; The taxonomic problem of the cyprinid species of genus Spinibarbus, occurring in southern China and northern Vietnam, was resolved on the basis of molecular and morphological analyses. Spinibarbus caldwelli and Spinibarbus hollandi have a smooth posterior edge of the last unbranched dorsal fin ray among species in the genus. Spinibarbus caldwelli is currently regarded as a junior synonym of S. hollandi because of ambiguities in diagnostic characters. In this article, 11 mtDNA cytochrome b sequences of Spinibarbus specimens were analyzed together with Barbodes gonionotus and Puntius conchonius as outgroups. Our results showed that specimens identified as S. hollandi from Taiwan were different from those from the Asian mainland at a high level of genetic divergence (0.097-0.112), which is higher than that between the two valid species, S. sinensis and S. yunnanensis ( 0.089), and suggested that Taiwan specimens should be considered as a different species from the Asian mainland one. In a molecular phylogenetic analysis, the sister-group relationship between Taiwan specimens and the Asian mainland specimens was supported strongly by a high confidence level ( 100% in bootstrap value). Further analysis of morphological characters showed that overlap of diagnostic characters is much weaker than previously suggested. Taiwan specimens had 8 branched rays in the dorsal fin, whereas those from the mainland had almost 9-10. The molecular and morphological differences suggest S. caldwelli to be valid. The molecular divergence shows the genetic speciation of S. hollandi and S. caldwelli might have occurred 5.6-4.9 million years ago; the former could be a relict species in Taiwan, and the latter dispersed in the Asian mainland.
SubtypeArticle
KeywordSpinibarbus Cytochrome b Genetic Divergence Morphological Characters Speciation
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Huazhong Agr Univ, Coll Fishery, Wuhan 430070, Peoples R China; Lake Biwa Museum, Shiga 5250001, Japan
Subject AreaZoology
DOI10.1007/s10228-004-0259-x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaZoology
WOS SubjectZoology
WOS IDWOS:000227148500010
WOS KeywordSEQUENCE ALIGNMENT ; PHYLOGENY ; EVOLUTIONARY ; BIOGEOGRAPHY ; TOOLS ; DNA
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9310
Collection期刊论文
Corresponding AuthorLiu, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Huazhong Agr Univ, Coll Fishery, Wuhan 430070, Peoples R China
3.Lake Biwa Museum, Shiga 5250001, Japan
Recommended Citation
GB/T 7714
Tang, QY,Liu, HZ,Yang, XP,et al. Molecular and morphological data suggest that Spinibarbus caldwelli (Nichols) (Teleostei : Cyprinidae) is a valid species[J]. ICHTHYOLOGICAL RESEARCH,2005,52(1):77-82.
APA Tang, QY,Liu, HZ,Yang, XP,Nakajima, T,&Liu, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2005).Molecular and morphological data suggest that Spinibarbus caldwelli (Nichols) (Teleostei : Cyprinidae) is a valid species.ICHTHYOLOGICAL RESEARCH,52(1),77-82.
MLA Tang, QY,et al."Molecular and morphological data suggest that Spinibarbus caldwelli (Nichols) (Teleostei : Cyprinidae) is a valid species".ICHTHYOLOGICAL RESEARCH 52.1(2005):77-82.
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