Abstract
Aleppo pine (Pinus halepensis Mill.) is a species threatened by anthropogenic overexploitation due to climate change. To contribute to its conservation, we evaluate the structure and the genetic diversity of the natural pine populations. We studied the genetic diversity of 14 populations (Rif, Middle Atlas, eastern Morocco and High Atlas) using an isoenzymatic marker. The results of the analysis indicated that the genetic variation of pine in Morocco is modest in comparison with other Mediterranean provenances. However, the study revealed a high coefficient of differentiation among populations (Fst = 9.5%). Two main population groups were identified based on genetic distances: South—West and North-East.
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