Molecular Evidence for Multiple Origins of the European Spined Loaches (Teleostei, Cobitidae)

0462604 - ÚŽFG 2017 RIV US eng J - Journal Article
Percides, A. - Bohlen, Jörg - Šlechtová, Vendula - Doadrio, I.
Molecular Evidence for Multiple Origins of the European Spined Loaches (Teleostei, Cobitidae).
PLoS ONE. Roč. 11, č. 1 (2016), e0144628-e0144628. ISSN 1932-6203. E-ISSN 1932-6203
R&D Projects: GA ČR GA206/08/0637
Institutional support: RVO:67985904
Keywords : mitochondrial DNA sequences * cytochrome b gene * phylogenetic relationship
Subject RIV: EG - Zoology
Impact factor: 2.806, year: 2016

We present a phylogenetic investigation of the Northern Clade, the major monophyletic clade within the freshwater fish family Cobitidae, one of the most prominent families of freshwater fishes found in Asian and European waters. Phylogenetic reconstructions based on the cytochrome b and RAG-1 genes show the genera Microcobitis, Sabanejewia, Koreocobitis and Kichulchoia as monophyletic groups. These reconstructions also show a Cobitis sensu lato and a Misgurnus sensu lato group. The Cobitis sensu lato group includes all species of Cobitis, Iksookimia, Niwaella and Kichulchoia, while the Misgurnus sensu lato group includes Misgurnus, Paramisgurnus and Koreocobitis. Although the monophyly of both the Cobitis sensu lato and Misgurnus sensu lato groups is supported, relationships within the groups are incongruent with current generic definitions. The absence of monophyly of most genera included in the Cobitis sensu lato group (Cobitis, Iksookimia and Niwaella) or their low genetic differentiation (Kichuchoia) supports their consideration as synonyms of Cobitis. Molecular phylogenies indicate that the Asian species of Misgurnus experienced a mitochondrial introgression from a lineage of Cobitis. We also find two nuclear haplotypes in the same Cobitis species from the Adriatic area that, in the absence of morphological differentiation, may indicate molecular introgression. Most lineages within the Northern Clade consist of species found in East Asia. However, some lineages also contain species from Europe and Asia Minor. The phylogenetic relationships presented here are consistent with previous studies suggesting an East Asian origin of the Northern Clade.
Permanent Link: http://hdl.handle.net/11104/0262027