caa a22 4500 445296127 CHVBK 20180317142542.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1134/S0032945210100048 doi (NATIONALLICENCE)springer-10.1134/S0032945210100048 How many times has polyploidization occurred during acipenserid evolution? New data on the karyotypes of sturgeons (Acipenseridae, Actinopterygii) from the Russian Far East [Elektronische Daten] [V. Vasil'ev, E. Vasil'eva, S. Shedko, G. Novomodny] The karyology of species of sturgeon from the Russian Far East demonstrates that the karyotype of the Sakhalin sturgeon (Acipenser mikadoi) includes 262 ± 4 chromosomes with 80 biarmed chromosomes and the number of chromosome arms (NF) 342 ± 4, the karyotype of the Amur sturgeon (A. schrenckii) includes 266 ± 4 chromosomes with 92 biarmed chromosomes and NF 358 ± 4, and the karyotype of the kaluga (A. dauricus) consists of 268 ± 4 chromosomes with 100 biarmed chromosomes and NF 368 ± 4. These results prove that all western Pacific sturgeon species are from a tetraploid origin, based on a recent ploidy scale. This suggests that at least three polyploidization events have occurred during the evolution of Acipenseridae. However, if polyploid species originated by hybridization between diploid species, there may have been more polyploidization events in this group of fishes. Pleiades Publishing, Ltd., 2010 chromosomes nationallicence ploidy level nationallicence sturgeons nationallicence evolution nationallicence poliploidization events nationallicence Vasil'ev V. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii prospect 33, 119071, Moscow, Russia aut Vasil'eva E. Zoological Museum, Moscow State University, Bol'shaya Nikitskaya 6, 125009, Moscow, Russia aut Shedko S. Institute of Biology and Soil Sciences, Far East Branch of Russian Academy of Sciences, Prospect Stoletiya Vladivostoka 159, 690022, Vladivostok, Russia aut Novomodny G. Khabarovsk branch of FGUP TINRO-Center, Amurskiy boulevard 13A, 680000, Khabarovsk, Russia aut Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/10(2010-12-01), 950-959 0032-9452 50:10<950 2010 50 11489 https://doi.org/10.1134/S0032945210100048 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0032945210100048 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vasil'ev V. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii prospect 33, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Vasil'eva E. Zoological Museum, Moscow State University, Bol'shaya Nikitskaya 6, 125009, Moscow, Russia aut NATIONALLICENCE 700 1- Shedko S. Institute of Biology and Soil Sciences, Far East Branch of Russian Academy of Sciences, Prospect Stoletiya Vladivostoka 159, 690022, Vladivostok, Russia aut NATIONALLICENCE 700 1- Novomodny G. Khabarovsk branch of FGUP TINRO-Center, Amurskiy boulevard 13A, 680000, Khabarovsk, Russia aut NATIONALLICENCE 773 0- Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/10(2010-12-01), 950-959 0032-9452 50:10<950 2010 50 11489 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer