Phylogenetic placements of the barbin genera Discherodontus, Chagunius, and Hypselobarbus in the subfamily Cyprininae (Teleostei: Cypriniformes) and their relationships with other barbins

Lei Yang, M. Vincent Hirt, Tetsuya Sado, M. Arunachalam, Raja Manickam, Kevin L. Tang, Andrew M Simons, Hsin Hui Wu, Richard L. Mayden, Masaki Miya

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The barbin genera Discherodontus Rainboth 1989, Chagunius Smith 1938 and Hypselobarbus Bleeker 1860 are distrib-uted in Southeast and South Asia and are among the least studied taxa of the order Cypriniformes. Few morphological studies have been conducted on these genera and only a very limited number of morphological characters were employed to hypothesize or infer their monophyly, inter-relationships, and relationships with other barbins. The main aim of this study is to examine the monophyly of these three genera and propose hypothesis of relationship among these taxa and other barbins based on a molecular phylogeny of the subfamily Cyprininae. A total of 106 cypriniform species were sam-pled, including 64 species and 31 genera of barbins collected from Eurasia and Africa. Partitioned maximum likelihood analysis was performed using DNA sequences derived from five mitochondrial genes (5601 bp): cytochrome c oxidase subunit I (COI), cytochrome b (Cyt b), 16S ribosomal RNA (16S), NADH dehydrogenase subunits 4 (ND4) and subunits 5 (ND5). The resulting phylogeny demonstrates that, under current taxon sampling, Discherodontus, Chagunius, and Hypselobarbus are all monophyletic genera. Together they do not form a monophyletic group, as hypothesized in previous studies, but are instead part of three distinct and unrelated clades. Discherodontus constitutes the basal lineage of a clade formed by Southeast Asian barbins (e.g. Poropuntius, Hypsibarbus, Balantiocheilos); Chagunius is basal to a clade formed mainly by Puntius and allies (although this relationship was only weakly supported); Hypselobarbus and Barbus carnaticus formed a clade sister to a clade including Tor, Neolissochilus, Labeobarbus, and Varicorhinus. Homoplasy and shared plesiomorphy of some hypothesized important morphological characters employed in previous studies that led re-searchers to hypothesize earlier relationships are discussed.

Original languageEnglish (US)
Pages (from-to)26-40
Number of pages15
JournalZootaxa
Issue number3586
StatePublished - Dec 14 2012

Fingerprint

Cypriniformes
cytochrome
phylogeny
phylogenetics
maximum likelihood analysis
monophyly
RNA
Barbus
probability analysis
NADH dehydrogenase
South Asia
Eurasia
South East Asia
DNA
cytochrome b
cytochrome-c oxidase
gene
sampling
ribosomal RNA
nucleotide sequences

Keywords

  • Homoplasy
  • Mitochondrial
  • Molecular
  • Morphology
  • Phylogeny

Cite this

Phylogenetic placements of the barbin genera Discherodontus, Chagunius, and Hypselobarbus in the subfamily Cyprininae (Teleostei : Cypriniformes) and their relationships with other barbins. / Yang, Lei; Vincent Hirt, M.; Sado, Tetsuya; Arunachalam, M.; Manickam, Raja; Tang, Kevin L.; Simons, Andrew M; Wu, Hsin Hui; Mayden, Richard L.; Miya, Masaki.

In: Zootaxa, No. 3586, 14.12.2012, p. 26-40.

Research output: Contribution to journalArticle

Yang, Lei ; Vincent Hirt, M. ; Sado, Tetsuya ; Arunachalam, M. ; Manickam, Raja ; Tang, Kevin L. ; Simons, Andrew M ; Wu, Hsin Hui ; Mayden, Richard L. ; Miya, Masaki. / Phylogenetic placements of the barbin genera Discherodontus, Chagunius, and Hypselobarbus in the subfamily Cyprininae (Teleostei : Cypriniformes) and their relationships with other barbins. In: Zootaxa. 2012 ; No. 3586. pp. 26-40.
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abstract = "The barbin genera Discherodontus Rainboth 1989, Chagunius Smith 1938 and Hypselobarbus Bleeker 1860 are distrib-uted in Southeast and South Asia and are among the least studied taxa of the order Cypriniformes. Few morphological studies have been conducted on these genera and only a very limited number of morphological characters were employed to hypothesize or infer their monophyly, inter-relationships, and relationships with other barbins. The main aim of this study is to examine the monophyly of these three genera and propose hypothesis of relationship among these taxa and other barbins based on a molecular phylogeny of the subfamily Cyprininae. A total of 106 cypriniform species were sam-pled, including 64 species and 31 genera of barbins collected from Eurasia and Africa. Partitioned maximum likelihood analysis was performed using DNA sequences derived from five mitochondrial genes (5601 bp): cytochrome c oxidase subunit I (COI), cytochrome b (Cyt b), 16S ribosomal RNA (16S), NADH dehydrogenase subunits 4 (ND4) and subunits 5 (ND5). The resulting phylogeny demonstrates that, under current taxon sampling, Discherodontus, Chagunius, and Hypselobarbus are all monophyletic genera. Together they do not form a monophyletic group, as hypothesized in previous studies, but are instead part of three distinct and unrelated clades. Discherodontus constitutes the basal lineage of a clade formed by Southeast Asian barbins (e.g. Poropuntius, Hypsibarbus, Balantiocheilos); Chagunius is basal to a clade formed mainly by Puntius and allies (although this relationship was only weakly supported); Hypselobarbus and Barbus carnaticus formed a clade sister to a clade including Tor, Neolissochilus, Labeobarbus, and Varicorhinus. Homoplasy and shared plesiomorphy of some hypothesized important morphological characters employed in previous studies that led re-searchers to hypothesize earlier relationships are discussed.",
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