부산대학교 도서관

In this study we investigated the genetic structure and diversity of jack pine populations in Quebec using chloroplast microsatellite markers. Six cpSSR loci were used to screen 15 Pinus banksiana populations from an economically important region of the boreal zone. The main objective was to quantify the variation within and among populations and to relate this to their geographic pattern. From 3 to 6 size variants were identified at each locus. A total of 29 size variants at the six loci were identified and 5 of the size variants occurred infrequently. The size variants were combined into 87 different haplotypes, of which 49 were unique. The AMOVA analysis revealed that 10.96% of the variation was distributed between populations and 89.04% within populations. Cluster analysis divided the studied populations into two large groups, one from north-western Quebec and the second from eastern Quebec. These results suggest that the genetic structure of the studied jack pine populations is the result of interactions between historical post-glacial migrations and climate-disturbance structuring factors.