Taxonomic position of Pinus uliginosa Neumann as related to other taxa of Pinus mugo complex

摘要

Studies on taxonomic position of Pinus uliginosa Neumann, P. Uncinata Ram. And P. Mugo Turra, indicate a significant specificity of P. Uliginosa population from Wielkie Torfowisko Batorowskie Peat Bog. Pinus uncinata in respect of genetic similarity is close to Pinus mugo Turra populations from the Tatra Mts. The time of divergence of P. Uliginosa from the common ancestor, taking into account Nei's genetic distances, is twice as long as in the case of Pinus uncinata. In the view of the results the supposition that Piuns uliginosa from Wielkie Torfowisko Batorowskie Peat Bog is a marginal population of P. Uncinata can be excluded, because of their significant difference in genetic structure. The presumable reasons of spe- cificity of P. uliginosa population are disscused.