The role of polyploidy in adaptation and settling of steppe shrubs in Central Asia


Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1134/S2079059712020037

Ключевые слова: adaptation, chromosome number, extreme conditions, polyploidy, settling, steadiness, steppe shrubs, Amygdalus pedunculata, Armeniaca sibirica, article, Asia, Atraphaxis frutescens, Atraphaxis pungens, Caragana buriatica, diploidy, Fabaceae, flowering, fruit development, genetic polymorphism, germination, nonhuman, Polygonaceae, priority journal, Rhamnaceae, Rhamnus erythroxylon, Rosaceae, steppe, survival, Armeniaca, Atraphaxis, Caragana, Erythroxylum, Pedunculata, Prunus, Rhamnus

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 numbeПоказать полностьюrs 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. © 2012 Pleiades Publishing, Ltd.

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Журнал: Russian Journal of Genetics: Applied Research

Выпуск журнала: Vol. 2, Is. 2

Номера страниц: 105-109


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