The evolutionary history of sharp- and blunt-snouted lenok (<Emphasis Type="Italic">Brachymystax lenok</Emphasis> (Pallas, 1773)) and its implications for the paleo-hydrological history of Siberia |
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| Authors: | Elsa Froufe Sergey Alekseyev Paulo Alexandrino Steven Weiss |
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| Institution: | 1.Centro de Investiga??o em Biodiversidade e Recursos Genéticos (CIBIO/UP),Campus Agrário de Vair?o,Vair?o,Portugal;2.Faculdade de Ciências,Universidade do Porto, Pra?a Gomes Teixeira,Porto,Portugal;3.N. K. Kolzov Institute of Developmental Biology (IDB),Russian Academy of Sciences,Moscow,Russia;4.Karl-Franzens Universit?t Graz,Institut für Zoologie, Universit?tsplatz 2,Graz,Austria |
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| Abstract: | Background Broad-scale phylogeographic studies of freshwater organisms provide not only an invaluable framework for understanding the
evolutionary history of species, but also a genetic imprint of the paleo-hydrological dynamics stemming from climatic change.
Few such studies have been carried out in Siberia, a vast region over which the extent of Pleistocene glaciation is still
disputed. Brachymystax lenok is a salmonid fish distributed throughout Siberia, exhibiting two forms hypothesized to have undergone extensive range expansion,
genetic exchange, and multiple speciation. A comprehensive phylogeographic investigation should clarify these hypotheses as
well as provide insights on Siberia's paleo-hydrological stability. |
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