DOI: 10.1101/473173Nov 19, 2018Paper

Phylogeny, phylogeography and hybridization of Caucasian barbels of the genus Barbus (Actinopterygii, Cyprinidae)

BioRxiv : the Preprint Server for Biology
Boris A LevinI Doadrio


The phylogenetic relationships and the phylogeography of seven species of Caucasian barbels of the genus Barbus s. str. were studied based on extended geographic coverage and the use of mtDNA and nDNA markers. Based on the 26 species studied, matrilineal phylogeny of the genus Barbus is composed of two clades: a) West European clade, and b) Central and East European clade. The latter comprises two subclades: b1) Balkanian subclade, and b2) Ponto-Caspian subclade, which includes 11 lineages mainly from Black and Caspian Sea drainages. Caucasian barbels are not monophyletic and are subdivided into two groups. The Black Sea group encompasses species from tributaries of the Black Sea, including the reinstalled B. rionicus , except for B. kubanicus . The Caspian group includes B. ciscaucasicus , B. cyri (with B. goktschaicus , which might be synonymized with B. cyri ), B. lacerta from the Tigris-Euphrates basin and B. kubanicus from the Kuban basin. The genetic structure of Black Sea barbels was influenced by glaciation-deglaciation periods accompanied by freshwater phases, periods of migration and the colonization of Black Sea tributaries. Intra- and intergeneric hybridization among Caucasian barbines was revealed for the first tim...Continue Reading

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