Human-aided dispersal has altered but not erased the phylogeography of the tench

0364920 - ÚŽFG 2012 RIV GB eng J - Journal Article
Lajbner, Zdeněk - Linhart, O. - Kotlík, Petr
Human-aided dispersal has altered but not erased the phylogeography of the tench.
Evolutionary Applications. Roč. 4, č. 4 (2011), s. 545-561. ISSN 1752-4571. E-ISSN 1752-4571
R&D Projects: GA MŠMT LC06073; GA ČR GA206/09/1154
Institutional research plan: CEZ:AV0Z50450515
Keywords : intron * mtDNA * secondary contact,
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 4.916, year: 2011

Human-aided dispersal can result in phylogeographic patterns that do not reflect natural historical processes, particularly in species prone to intentional translocations by humans. Here, we use a multiple-gene sequencing approach to assess the effects of human-aided dispersal on phylogeography of the tench Tinca tinca, a widespread Eurasian freshwater fish with a long history in aquaculture. Spatial genetic analysis applied to sequence data from four unlinked loci and 67 geographic localities (38–382 gene copies per locus) defined two groups of populations that were little structured geographically but were significantly differentiated from each other, and it identified locations of major genetic breaks, which were concordant across genes and were driven by distributions of two phylogroups. This pattern most reasonably reflects isolation in two major glacial refugia and subsequent range expansions, with the Eastern and Western phylogroups remaining largely allopatric throughout the tench range.
Permanent Link: http://hdl.handle.net/11104/0200282