RELATIONS BETWEEN SIBERIAN SPECIES ELYMUS KOMAROVII AND E. TRANSBAICALENSIS (POACEAE) REVEALED BY MOLECULAR ISSR-MARKERS
A.V. Agafonov, E.V. Shabanova (Kobozeva), S.V. Asbaganov
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
agalex@mail.ru
Keywords: Elymus, E. komarovii, Е. transbaicalensis, E. sajanensis, E. kronokensis, ISSR-маркеры, микроэволюционные отношения, Elymus, E. komarovii, Е. transbaicalensis, E. sajanensis, E. kronokensis, ISSR-markers, microevolutio nary relationships
Abstract
Microevolutionary relationships among Siberian species Elymus komarovii and E. transbaicalensis in comparison with some accessions of reference species of E. sajanensis and E. kronokensis were studied by the ISSR-marking method. The used set of primers has shown efficiency for identification intra- and interspecific genetic differentiation of the studied species. Previously obtained evidence that species characters overlap as a result of introgressive hybridization were confi rmed. The close relations of species genomes provide normalization of seed fertility of spontaneous hybrids in next generations. Therefore, the individuals combining characters of two or more species are found in the mixed populations. In that case similar morphotypes may diff er signifi cantly from each other genetically.
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