ArticleEvolutionary applications2019
Does gene flow aggravate or alleviate maladaptation to environmental stress in small populations?
Article in Evolutionary applications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- Local Adaptation to Current but Not Future Climate in Seasonally Dry Tropical Forests: Population Genomic Evidence in a Neotropical Legume Tree.Evolutionary applications · 2026Article
- Genome-Wide SNP Diversity in Natural and Cultivated Populations Informs Restoration Ecology With Three Calamagrostis Species From the Northwest Territories of Canada.Molecular ecology · 2026Article
- Does genetic rescue disrupt local adaptation? An experimental test using thermally adaptedProceedings. Biological sciences · 2025Article
- Margins of adaptation at the desert frontier: genetic responses of Ammopiptanthus mongolicus in arid northwestern China.Botanical studies · 2025Review
- Genetically modified crops and sustainable development: navigating challenges and opportunities.Food science and biotechnology · 2025Review
- Simulating Genetic Mixing in Strongly Structured Populations of the Threatened Southern Brown Bandicoot (Evolutionary applications · 2024Article
- Recurrent Extreme Climatic Events Are Driving Gorgonian Populations to Local Extinction: Low Adaptive Potential to Marine Heatwaves.Global change biology · 2024Article
- Genetic divergence and one-way gene flow influence contemporary evolution and ecology of a partially migratory fish.Evolutionary applications · 2024Article
- Historical biogeography and local adaptation explain population genetic structure in a widespread terrestrial orchid.Annals of botany · 2023Article
- From meta-system theory to the sustainable management of rivers in the Anthropocene.Frontiers in ecology and the environment · 2022Article
- Applying genomics in assisted migration under climate change: Framework, empirical applications, and case studies.Evolutionary applications · 2022Review
- Genetically engineered crops for sustainably enhanced food production systems.Frontiers in plant science · 2022Review
- Genetic and morphological data demonstrate hybridization and backcrossing in a pair of salamanders at the far end of the speciation continuum.Evolutionary applications · 2021Article
- Genetic mixing for population management: From genetic rescue to provenancing.Evolutionary applications · 2021Article
- Genome-wide diversity and habitat underlie fine-scale phenotypic differentiation in the rainbow darter (Evolutionary applications · 2021Article
- Article
- Heat stress responses and population genetics of the kelpEcology and evolution · 2020Article
- Causes of maladaptation.Evolutionary applications · 2019Review
- Implications of existing local (mal)adaptations for ecological forecasting under environmental change.Evolutionary applications · 2019Article
- Local adaptation stops where ecological gradients steepen or are interrupted.Evolutionary applications · 2019Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Environmental change can expose populations to unfamiliar stressors, and maladaptive responses to those stressors may result in population declines or extirpation. Although gene flow is classically viewed as a cause of maladaptation, small and isolated populations experiencing high levels of drift and little gene flow may be constrained in their evolutionary response to environmental change. We provide a case study using the model Trinidadian guppy system that illustrates the importance of considering gene flow and genetic drift when predicting (mal)adaptive response to acute stress. We compared population genomic patterns and acute stress responses of inbred guppy populations from headwater streams either with or without a recent history of gene flow from a more diverse mainstem population. Compared to "no-gene flow" analogues, we found that populations with recent gene flow showed higher genomic variation and increased stress tolerance-but only when exposed to a stress familiar to the mainstem population (heat shock). All headwater populations showed similar responses to a familiar stress in headwater environments (starvation) regardless of gene flow history, whereas exposure to an entirely unfamiliar stress (copper sulfate) showed population-level variation unrelated to environment or recent evolutionary history. Our results suggest that (mal)adaptive responses to acutely stressful environments are determined in part by recent evolutionary history and in part by previous exposure. In some cases, gene flow may provide the variation needed to persist, and eventually adapt, in the face of novel stress.
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