Академическое издательство «Гео»

Key words: Leymus, L. buriaticus, L. littoralis, L. chinensis, taxon, morphotype, systematization, SDS-electrophoresis, grain storage proteins.



Rastitel'nyj Mir Aziatskoj Rossii (Plant Life of Asian Russia), 2010, № 1, p. 1-11

ТAXONOMIC STATUS OF LEYMUS BURIATICUS (POACEAE) BY THE RESULTS
OF MORPHOLOGICAL ANALYSIS AND SDS-ELECTROPHORESIS OF STORAGE ENDOSPERM PROTEINS AND HISTON H1

N.K. Badmaeva, A.S. Lipin, A.V. Agafonov

1Institute of General and Experimental Biology, SB RAS, Ulan-Ude, Sakhyanovoy st., 6
Fax: +7 (3012) 433–034; e-mail: badmayevan@mail.ru
2Central Siberian Botanical Garden, SB RAS, 630090 Novosibirsk, Zolotodolinskaya st., 101
Fax: +7 (383) 330–19–86; e-mail: agalex@mail.ru

A comprehensive study of the critical taxon Leymus buriaticus Peschkova was carried out in comparison with natural and cultivated populations of L. littoralis and L. chinensis from various localities in Buryatia. The factorial analysis performed by 15 morphological characters showed that L. buriaticus occupied an intermediate position between L. chinensis and L. littoralis. SDS-electrophoresis of individual seeds showed presence of similarity of relations between samples identified as L. buriaticus and selected samples of L. littoralis and L. chinensis in mixed population from a classical locality. The analysis of subfractional composition of histon Н1 also revealed presence of common subfractions of L. littoralis, L. chinensis and L. buriaticus. It was concluded that the endemic L. buriaticus was of a hybrid origin.

Key words: Leymus, L. buriaticus, L. littoralis, L. chinensis, taxon, morphotype, systematization, SDS-electrophoresis, grain storage proteins.
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