Phylogenetic relationships of the algae scraping cyprinid genus Capoeta (Teleostei: Cyprinidae)


Levin B. A. , Freyhof J., Lajbner Z., Perea S., Abdoli A., Gaffaroglu M., ...More

MOLECULAR PHYLOGENETICS AND EVOLUTION, vol.62, no.1, pp.542-549, 2012 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1016/j.ympev.2011.09.004
  • Title of Journal : MOLECULAR PHYLOGENETICS AND EVOLUTION
  • Page Numbers: pp.542-549

Abstract

We reconstructed the matrilineal phylogeny of Asian algae-eating fishes of the genus Capoeta based on
complete mitochondrial gene for cytochrome b sequences obtained from 20 species sampled from the
majority of the range and 44 species of closely related barbs of the genera Barbus s. str. and Luciobarbus.
The results of this study show that Capoeta forms a strongly supported monophyletic subclade nested
within the Luciobarbus clade, suggesting that specialized scraping morphology appeared once in the evolutionary
history of the genus. We detected three main groups of Capoeta: the Mesopotamian group,
which includes three species from the Tigris–Euphrates system and adjacent water bodies, the Anatolian–
Iranian group, which has the most diversified structure and encompasses many species distributed
throughout Anatolian and Iranian inland waters, and the Aralo-Caspian group, which consists of species
distributed in basins of the Caspian and Aral Seas, including many dead-end rivers in Central Asia and
Northern Iran. The most probable origination pathway of the genus Capoeta is hypothesized to occur
as a result of allopolyploidization. The origin of Capoeta was found around the Langhian–Serravallian
boundary according to our molecular clock. The diversification within the genus occurred along Middle
Miocene–Late Pliocene periods.

We reconstructed the matrilineal phylogeny of Asian algae-eating fishes of the genus Capoeta based on complete mitochondrial gene for cytochrome b sequences obtained from 20 species sampled from the majority of the range and 44 species of closely related barbs of the genera Barbus s. str. and Luciobarbus. The results of this study show that Capoeta forms a strongly supported monophyletic subclade nested within the Luciobarbus clade, suggesting that specialized scraping morphology appeared once in the evolutionary history of the genus. We detected three main groups of Capoeta: the Mesopotamian group, which includes three species from the Tigris-Euphrates system and adjacent water bodies, the Anatolian-Iranian group, which has the most diversified structure and encompasses many species distributed throughout Anatolian and Iranian inland waters, and the Aralo-Caspian group, which consists of species distributed in basins of the Caspian and Aral Seas, including many dead-end rivers in Central Asia and Northern Iran. The most probable origination pathway of the genus Capoeta is hypothesized to occur as a result of allopolyploidization. The origin of Capoeta was found around the Langhian-Serravallian boundary according to our molecular clock. The diversification within the genus occurred along Middle Miocene-Late Pliocene periods. (C) 2011 Elsevier Inc. All rights reserved.