Genetic diversity of Rhododendron redowskianum Maxim., a rare species of Siberian and Far Eastern rhododendrons, based on plastid and nuclear DNA markers
M. Polezhaeva, M. Modorov, O. Mochalova, M. G. Khoreva, M. Koldaeva, E. A. Marchuk
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引用次数: 0
Abstract
The genetic diversity of 78 individuals of Rhododendron redowskianum Maxim. from five natural populations of different territories of the Far East – Magadan Region, Sakhalin Region, Primorye Territory and Northeast China was studied. Variability of the species according to five markers of plastid DNA was very low. The only one mutation was detected in one of the markers in a singl individual from Sikhote-Alin population. Analysis of the polymorphism of eight nuclear microsatellites, on the contrary, revealed a high level of diversity in all samples (mean values: Aa = 6.44, Ae = 4.43, Ho = 0.514, He = 0.523) and high interpopulation differentiation (FST = 0.299, p < 0.001). Population structure analysis identified four genetic clusters that correspond to the four geographic areas represented. Relationship analysis based on plastid DNA data revealed the ancestral position of R. redowskianum in relation to the closely related species R. camtschaticum Pall. s.l.
期刊介绍:
Botanica Pacifica (BP) publishes peer-reviewed, significant research of interest to a wide audience of plant scientists in all areas of plant biology (structure, function, development, diversity, genetics, evolution, systematics), all levels of organization (molecular to ecosystem), and all plant groups and allied organisms (cyanobacteria, fungi, and lichens). BP requires authors to frame their research questions and discuss their results in terms of contemporary problems of plant biology. While the geographic focus of the journal is the Pacific region, research submissions that demonstrate clear linkages with other regions are welcome. BP aims to foster the exchange of research ideas between countries with diverse cultures and languages.