Isozyme uniformity in populations of red pine (Pinusresinosa) in the Abitibi Region, Quebec

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Abstract
The genetic structure of six populations of red pine, comprising 124 trees, at its northwestern limit in Québec, was analysed by electrophoresis in polyacrylamide gels. No differences were observed among individuals in the number and mobility of isozymes of esterases, acid phosphatases, superoxyde dismutase, and peroxydases. The lack of genetic differentiation in marginal red pine populations of the Abitibi Region is similar to that found in other populations from three eastern Canadian provinces. It indicates that the species is genetically depauperate over a large area of its range.

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