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Full-Text Articles in Life Sciences
Quantifying The Impact Of Gene Flow On Phenotype-Environment Mismatch: A Demonstration With The Scarlet Monkeyflower Mimulus Cardinalis, John R. Paul, Seema N. Sheth, Amy L. Angert
Quantifying The Impact Of Gene Flow On Phenotype-Environment Mismatch: A Demonstration With The Scarlet Monkeyflower Mimulus Cardinalis, John R. Paul, Seema N. Sheth, Amy L. Angert
Biology Faculty Publications
Geographic range margins offer testing grounds for limits to adaptation. If range limits are concordant with niche limits, range expansions require the evolution of new phenotypes that can maintain populations beyond current range margins. However, many species' range margins appear static over time, suggesting limits on the ability of marginal populations to evolve appropriate phenotypes. A potential explanation is the swamping gene flow hypothesis, which posits that asymmetrical gene flow from large, well-adapted central populations prevents marginal populations from locally adapting. We present an empirical framework for combining gene flow, environment, and fitness-related phenotypes to infer the potential for maladaptation, …