title: Shallow phylogeographic structuring of Vimba vimba across Europe suggests two distinct refugia during the last glaciation.
abstract: Genetic variation and geographical structuring of vimba Vimba vimba were analysed across 26 sites (80 individuals) by means of mtDNA sequences (cyt b gene, mitochondrial control region) to localize hypothesized glacial refugia and to reconstruct postglacial recoloniation routes. Although genetic diversity among sequenced individuals was low, a combined analysis of the two sequenced fragments revealed a western (central and northern Europe: Danube, Elbe and lakes of Sweden) and an eastern clade (eastern Europe: Dnieper-South Bug, Don, Neman). Furthermore, a number of divergent ancestral haplotypes distributed around the Black and Caspian Seas became apparent. Mismatch analyses supported a sudden expansion model for the populations of the western clade between 50 and 10 000 bp. Overall, the study provides strong evidence for a northward and westward expansion of V. vimba from two refugial regions located in the Danubian drainage and the northern Pontic regions respectively.
authors.affiliation: Department of Biological Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK.
authors.forename: B
authors.initials: B
authors.lastname: Hänfling
authors.forename: C
authors.initials: C
authors.lastname: Dümpelmann
authors.forename: N G
authors.initials: NG
authors.lastname: Bogutskaya
authors.forename: R
authors.initials: R
authors.lastname: Brandl
authors.forename: M
authors.initials: M
authors.lastname: Brändle
mesh_terms: D000818:Animals; D003530:Cyprinidae / Q000145:classification / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics; D005060:Europe; D019143:Evolution, Molecular; D010802:Phylogeny; D058974:Phylogeography; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial