Estimating genetic flow between exotic and native poplar species in Québec

Authors: Guigou Cairus, Gabriela
Advisor: Khasa, Damase P.Bousquet, JeanIsabel, Nathalie
Abstract: The goal of this study was to detect and quantify, when necessary, the presence of gene flow between poplars with exotic components and their native relatives. Seeds were collected from native mother trees, Populus balsamifera and P. deltoides, located in the surroundings of plantations of poplars with exotic components, in two different sites (Matane and Sorel) and during two to three consecutive years. We genotyped these seeds using genetic markers specific for these species. This method allowed us to detect, in the seeds collected from native mother trees present around these plantations, the presence of alleles brought about from male trees with exotic components located within the plantations. Our results revealed the presence of hybridization between native trees and trees with exotic components from the plantations. This spontaneous hybridization could affect in the long term the genetic constitution of local populations of native species.
Document Type: Mémoire de maîtrise
Issue Date: 2008
Open Access Date: 13 April 2018
Grantor: Université Laval
Collection:Thèses et mémoires

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