Abstract

Sacred fir (Abies religiosa) forests of the Nevado de Toluca National Park, Mexico, are threatened principally by illegal cutting and an increasing incidence of parasites as bark beetles and dwarf mistletoe. An important and sometimes ignored component of conservations plan is genetic variability hence, it is necessary to carry out studies on the genetic diversity of sacred fir to create an efficient plan of conservation and management. In the present study DNA markers were used to analyze genetic variability of seventeen populations of sacred fir. Results suggest high values of genetic variability among populations (G_ST > 0.5) and low levels of gene flow (Nm < 1), indicating high population differentiation. These results allow the localization of genetically unique populations and propose them as Conservation and Management of Gene Resources Zones.

Key words: Nevado de Toluca national park, Abies religiosa, molecular markers, conservation.