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

Publication date: Available online 4 March 2019Source: Molecular Phylogenetics and EvolutionAuthor(s): Boris A. Levin, Alexander A. Gandlin, Evgeniy S. Simonov, Marina A. Levina, Anna E. Barmintseva, Bella Japoshvili, Nikolai S. Mugue, Levan Mumladze, N.J. Mustafayev, Andrey N. Pashkov, Haikaz R. Roubenyan, Maxim I. Shapovalov, Ignacio DoadrioAbstractPhylogenetic relationships and phylogeography of six species of Caucasian barbels, the genus Barbus s. str., were studied based on extended geographic coverage and using mtDNA and nDNA markers. Based on 26 species studied, matrilineal phylogeny of the genus Barbus is composed of two clades – a) West European clade, b) Central and East European clade. The latter comprises two subclades: b1) Balkanian subclade, and b2) Ponto-Caspian one that includes 11 lineages mainly from Black and Caspian Sea drainages. Caucasian barbels are not monophyletic and subdivided for two groups. The Black Sea group encompasses species from tributaries of Black Sea including re-erected B. rionicus and excluding B. kubanicus. The Caspian group includes B. ciscaucasicus, B. cyri (with B. goktschaicus that might be synonymized with B. cyri), B. lacerta from the Tigris-Euphrates basin and B. kubanicus from the Kuban basin. Genetic structure of Black Sea barbels was influenced by glaciation-deglaciation periods accompanying by freshwater phases, periods of migration and colonization of Black Sea tributaries. Intra- and intergeneric hybridization among Cauc...
Source: Molecular Phylogenetics and Evolution - Category: Molecular Biology Source Type: research