Characteristics of gene pools of three Pinus pumila (Pall.) Regel populations at the range margins
Nakonechnaia, O.V.; Kholina, A.B.; Koren', O.G.; Janeček, V.; Kohutka, A.; Gebauer, R.; Zhuravlev, I.N.
Genetika 46(12): 1609-1618
2010
ISSN/ISBN: 0016-6758 PMID: 21434414 Document Number: 642445
Genetic variation of Siberian dwarf pine Pinus pumila (Pall.) Regel was characterized in three marginal populations in southwestern, southern and eastern parts of the natural species range (Transbaikalia, Primorye, Kamchatka) using isozyme analysis. Analysis involving 16 isozyme loci encoding ten enzyme systems was conducted. Our results confirm that P. pumila is among the most polymorphic species in the family Pinus. Three marginal populations exhibited high genetic variation (P95 = 68.8%, Ho = 0.247, He = 0.291). Populations heterogeneity and significantly high level of divergence in coniferous (F(ST) = 0.050, D(N) = 0.044) reflect their genetic originality. In summary, it was shown that the level of genetic variation characteristic for P. pumila in other parts of the not only is reproduced in the populations examined but even is close to maximum there.