Analyse de la diversité génomique des populations de Cronartium ribicola, agent responsable de la rouille vésiculeuse du pin blanc

Authors: Joly, David
Advisor: Bernier, LouisHamelin, Richard C.
Abstract: The goal of this research was to develop coding genetic markers for the white pine blister rust (WPBR) causal agent, Cronartium ribicola, without bias for populations from eastern or western North America. Eight markers were used to genotype 80 individuals, using the SSCP (Single-Strand Conformation Polymorphism) technique, allowing to study genetic variability within these populations. This study confirmed the presence of a barrier to gene flow between populations located east and west of the Prairies, populations from the Rockies having grouped with western populations. The genetic differentiation between eastern and western populations is highly significant and nucleotide diversity was three times higher in eastern populations. Furthermore, an hybrid between C. ribicola and Cronartium comandrae, causal agent of comandra blister rust, is reported for the first time.
Document Type: Mémoire de maîtrise
Issue Date: 2005
Open Access Date: 11 April 2018
Grantor: Université Laval
Collection:Thèses et mémoires

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