Comparación de QST vs. FST en poblaciones naturales de Pinus hartwegii Lindl

摘要: SUMMARY Due to climatic change, it might be expected that in the next years, habitat of Pinus hartwegii Lindl. could sharply decrease. It is then convenient establish conservation strategies diminish or counteract effects change. However, a first step establishing measures quantify adaptive variation species and evolutionary forces may have shaped it. To understand acting on P. populations, patterns genetic variation, assessed through quantitative traits isozymes, were compared 12 natural populations along an altitudinal transect Michoacan, Mexico, by estimation QST FST statistics. Although significant differentiation among was found for most showed strong clinal pattern associated with site elevation, but not isozymes. Average value (0.200) higher than (0.127), they significantly different. Results indicate selection, imposed environmental gradient, traits, while other forces, like drift gene flow, are The similarity Q ST F values attributed joint action selection drift.