Genetic divergence and taxonomic status of chars of the genus Salvelinus

Occurrence of sympatric charr groups, Salvelinus, Salmonidae, in the lakes of Kamchatka: a legacy of the last glaciations

“…Several distinct landlocked populations of S. taranetzi have been described from the lakes of Chukotka (Fig. ; Chereshnev et al, ; Gudkov, ; Omelchenko, ; Oleinik & Skurikhina, ; Salmenkova & Omelchenko, ; Osinov et al, ). Populations having the S .…”

“…These two species are genetically distinct, have not hybridized and are hypothesized to have diverged from a common ancestor >200 000 years B.P., before the last glacial maximum (Taylor et al, 2008;May-McNally et al, 2015). Anadromous S. malma and resident populations of S. taranetzi are known to co-occur in >10 lakes in western Alaska (McPhail, 1961;Behnke, 1980;McCart, 1980;Reist et al, 1997;Taylor et al, 2008), but there is little information about the coexistence of S. malma with S. taranetzi in northeastern Asia (Salmenkova & Omelchenko, 2013). Several distinct landlocked populations of S. taranetzi have been described from the lakes of Chukotka (Fig.…”

Complete mitochondrial genomes of the Northern ( Salvelinus malma ) and Southern ( Salvelinus curilus ) Dolly Varden chars (Salmoniformes, Salmonidae)

“…The level of divergence between S. malma and S. curilus inferred from the complete mitochondrial genomes was relatively low, 1.88%. However, the level of divergence inferred from the 12 protein-coding genes (excluding ND6) was higher, 2.24%, supporting their status as valid biological species, despite recent divergence and/or historical hybridization (review in Salmenkova & Omelchenko, 2013). A low level of sequence divergence (D xy ¼ 0.0074 ± 0.0005) was also detected between the genome of S. malma and the GenBank complete mitochondrial genome of the Arctic char S. alpinus (AF154851), but significantly higher between S. curilus and S. alpinus (D xy ¼ 0.0196 ± 0.0010).…”

“…The taxonomic status of the Dolly Varden chars was investigated intensively using different types of genetic markers (review in Salmenkova & Omelchenko, 2013). There were no fixed differences detected between the Southern and Northern forms with allozyme (Omelchenko et al, 2002) and microsatellite (Gordeeva et al, 2010) markers.…”

Complete mitochondrial genome of the white char Salvelinus albus (Salmoniformes, Salmonidae)

“…The species status of the white char was supported with morphological (Glubokovsky, 1995;Parensky et al, 2004;Romanov et al, 2011;Viktorovskii, 1978) and karyological (Frolov, 2001) data. However, genetic markers including allozymes, myogens, mitochondrial DNA, nuclear ribosomal DNA, ITS sequences, and microsatellites failed to confirm the identity of S. albus (review in Salmenkova & Omelchenko, 2013).…”