01674nas a2200169   4500008004100000245015600041210006900197260000900266300001200275490000700287520107900294100001601373700002001389700001701409700001701426856006101443       2000                        eng d00aMorphological and Molecular Differentiation between Quercus petraea(Matt.) Liebl. and Quercus pubescens Willd. (Fagaceae) in Northern and Central Italy0 aMorphological and Molecular Differentiation between Quercus petr  c2000  a325-3330 v853 aQuercus petraea(Matt.) Liebl. and Q. pubescens Willd. are two closely related taxa. No specific single marker, either morphological or molecular, has been identified to distinguish the two species until now. In the present study morphoanatomical and molecular traits (simple sequence repeats = SSR loci) were investigated in an attempt to characterize and to discriminate between these two oak species. At the morphological level, the applied statistics (nested ANOVA and discriminant analysis) suggest that the micromorphological features are the most effective for this purpose. The wide range of macromorphological variation observed can confound the classification of many individuals into either Q. petraea and Q. pubescens. Analysis of microsatellite data indicates that most of the genetic variation is contained within, rather than between, species. The lack of molecular divergence could be attributed to either relatively rapid and recent differentiation or to extensive hybridization following secondary contact of the taxa.Copyright 2000 Annals of Botany Company1 aBruschi, P.1 aVendramin, G.G.1 aBussotti, F.1 aGrossoni, P.  uhttp://aob.oupjournals.org/cgi/content/abstract/85/3/325