GEOGRAPHIC STRUCTURE OF CHLOROPLAST DNA POLYMORPHISMS IN EUROPEAN OAKS

Citation
Rj. Petit et al., GEOGRAPHIC STRUCTURE OF CHLOROPLAST DNA POLYMORPHISMS IN EUROPEAN OAKS, Theoretical and Applied Genetics, 87(1-2), 1993, pp. 122-128
Citations number
23
Categorie Soggetti
Genetics & Heredity
ISSN journal
00405752
Volume
87
Issue
1-2
Year of publication
1993
Pages
122 - 128
Database
ISI
SICI code
0040-5752(1993)87:1-2<122:GSOCDP>2.0.ZU;2-L
Abstract
Chloroplast DNA polymorphisms have been detected by the conventional S outhern-blotting hybridization method in four species of European oaks (Quercus petraea, Q. robur, Q. pubescens and Q. pyrenaica). Three pol ymorphisms, shared by at least three of these species, can be scored d irectly in ethidium bromide-stained gels and were used in a broad surv ey of the level of differentiation of the oak species and of their pat tern of genetic structure in western Europe. The highly significant ge ographic variation and the high genetic differentiation (Gst = 0.895, S(Gst) = 0.025) indicate a low level of cytoplasmic gene flow. We conc lude that cytoplasmic genomes are well suited for the reconstruction o f past migrational routes of such a complex of species.