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Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid
Published on: August 8, 2017
GENOTYPE-BY-ENVIRONMENT INTERACTIONS FOR FITNESS OF ERIGERON ANNUUS SHOW FINE-SCALE SELECTIVE HETEROGENEITY
1Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, 08544.
Abstract:
The results of natural selection depend critically on whether variation in fitness is finegrained or coarse-grained with respect to dispersal, but little is known of the spatial scale of fitness variation in natural populations. For most evolutionary questions, environmental heterogeneity must be defined by reversals in the relative fitness of genotypes; absolute fitness may vary, but if genotypes respond in parallel then selection is uniform. Thus, measurements of genotype-by-environment (G × E) interactions for fitness are necessary to understand patterns of variation in natural selection.
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