Кл.слова (ненормированные):
adaptation -- chromosome number -- extreme conditions -- polyploidy -- settling -- steadiness -- steppe shrubs -- adaptation -- Amygdalus pedunculata -- Armeniaca sibirica -- article -- Asia -- Atraphaxis frutescens -- Atraphaxis pungens -- Caragana buriatica -- chromosome number -- diploidy -- Fabaceae -- flowering -- fruit development -- genetic polymorphism -- germination -- nonhuman -- Polygonaceae -- polyploidy -- priority journal -- Rhamnaceae -- Rhamnus erythroxylon -- Rosaceae -- steppe -- survival -- Armeniaca -- Atraphaxis -- Caragana -- Erythroxylum -- Fabaceae -- Pedunculata -- Polygonaceae -- Prunus -- Rhamnaceae -- Rhamnus -- Rosaceae
Аннотация: Chromosome numbers for some species of Central Asia steppe shrubs are given: Rhamnus erythroxylon Pall. (Rhamnaceae), Caragana buriatica Peschk. (Fabaceae), Amygdalus pedunculata Pall., Armeniaca sibirica (L.) Lam. (Rosaceae), Atraphaxis pungens (Bieb.) Jaub. et Spach, and A. frutescens (L.) C. Koch (Polygonaceae). Chromosome numbers of some species were determined for the first time. A comparative analysis of adaptive properties of polyploidy and diploid species has been conducted. It was established that natural polyploids are more adaptive to existence in extreme conditions. They possess a high potential for survival and are characterized by a higher level of intraspecific polymorphism, abundant flowering and fruitification, ability to propagate both via generative and vegetative means, and high seed germination. В© 2012 Pleiades Publishing, Ltd.
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Полный текст
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forestry, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ekimova, N.V.; Muratova, E.N.; Silkin, P.P.