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Comparison of genetic and virulence diversity of Melampsora larici-populina populations on wild and cultivated poplar and influence of the alternate host Inra
Gérard, P.R.; Husson, C.; Pinon; Frey, P..
The aims of this study were, first, to compare the genetic and virulence diversity between populations of the rust fungus Melanipsora larici-populina on wild and cultivated poplar stands and, second, to investigate the influence of the presence of the alternate host of the pathogen, larch, on which its sexual reproduction occurs, on these diversities. Nine French M. larici-populina populations collected from poplar trees in autumn and four. populations collected from larch trees during the following spring were analyzed using both virulence factors and neutral markers. In all, 30 pathotypes were identified within the 13 populations studied. The pathotypic structure clearly distinguished the cultivated stands with high richness and complexity from the wild...
Tipo: Journal Article Palavras-chave: GENETIQUE DES POPULATIONS; ROUILLE; MALADIE DES PLANTES; POUVOIR PATHOGENE; DIVERSITE GENETIQUE; PATHOTYPE; HOTE ALTERNATIF; EPIDEMIOLOGIE BLACK POPLAR; DOMINANT MARKERS; POPULATION GENETICS; RUST EPIDEMICS.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007e8ace244&uri=/notices/prodinra1/2007/03/
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