Phylogeography of the Kura Barbel Barbus cyri De Filippi as Inferred from mtDNA Data

Caucasian barbels of the genus Barbus are a genetically poorly studied group of cyprinids. This article presents the first detailed study of the phylogeography of the Kura barbel B. cyri (229 specimens from 52 locations) using two molecular markers of mtDNA, the cytochrome b gene and the control reg...

Full description

Saved in:
Bibliographic Details
Published in:Inland water biology 2022-02, Vol.15 (1), p.11-22
Main Authors: Gandlin, A. A., Japoshvili, B., Epitashvili, G., Mustafaev, N. J., Roubenyan, H. R., Levin, B. A.
Format: Article
Language:English
Subjects:
Aquatic Flora and Fauna
Barbels
Barbus
Biodiversity
Biomedical and Life Sciences
Cytochrome b
Cytochromes
Endemism
Freshwater & Marine Ecology
Genetic structure
Geoecology/Natural Processes
Geographical distribution
Haplotypes
Holocene
Ichthyofauna
Life Sciences
Mitochondrial DNA
Oscillations
Phylogeography
Pleistocene
Population genetics
Populations
Sea level
Sea level changes
Tectonics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Caucasian barbels of the genus Barbus are a genetically poorly studied group of cyprinids. This article presents the first detailed study of the phylogeography of the Kura barbel B. cyri (229 specimens from 52 locations) using two molecular markers of mtDNA, the cytochrome b gene and the control region. By analyzing haplotype networks, the complex genetic structure of the population system of the Kura barbel was revealed. The discovered genetic subdivision correlates weakly with the geographical distribution of populations. We suggest that climatic oscillations, Caspian Sea level fluctuations, and the tectonic activity resulted in the repeated secondary contacts, as well as temporary isolation of some populations (e.g., Lenkoran, Sevan, Lower Kura, southern coast of the Caspian Sea) during the Pleistocene–Holocene. At the same time, genetic subisolation of the population of the upper-middle reach of the Kura River from the population in the Lower Kura was revealed. Along with other data on the endemism of the ichthyofauna of the middle reach of the Kura, this finding favors the hypothesis of a local refugium in the Kura basin.
ISSN:1995-0829
1995-0837
DOI:10.1134/S1995082922010047