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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Genetic Structure of Forest Tree Populations: Measurement and Interpretation

The population genetic structure of forest trees is reviewed in the context of forest stand development. The effects of variation in mating system parameters, seed production and dispersal, and survival and early growth on population genetic structure in forest stands are discussed. In general, forest tree populations are considered to be relatively unstructured due to their large effective population size, outcrossing breeding system and long-life cycle. However, much of what is known about the population structure of trees is based upon results from studies of conifers, and our perspectives could change as more woody angiosperms are studied. Additional keywords : F-statistics, gene diversity, silvicultural implications, population subdivision.

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Author(s): Raymond P. Guries

Publication: Tree Improvement and Genetics - North Central Tree Improvement Conference - 1989