| differential patterns of morphological and molecular hybridization between fraxinus excelsior l. and fraxinus angustifolia vahl (oleaceae) in eastern and western france. | we examined large-scale patterns of morphology, genetic structure and ecological correlates of fraxinus excelsior and the closely related species fraxinus angustifolia in france, in order to determine the degree of hybridization between them. we sampled 24 populations in two putative hybrid zones (loire and saône), and five control populations of each species. we measured foliar characteristics of adult trees and used five nuclear microsatellites as molecular markers. canonical discriminant anal ... | 2006 | 16968268 |