ArticleProceedings. Biological sciences2020
The evolution and fate of diversity under hard and soft selection.
Article in Proceedings. Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 31 citations in OpenAlex.
- Mutant fate in spatially structured populations on graphs: Connecting models to experiments.PLoS computational biology · 2024Article
- Co-occurring microflora and mucin driveISME communications · 2024Article
- Experimental evidence that network topology can accelerate the spread of beneficial mutations.Evolution letters · 2023Article
- Frequent asymmetric migrations suppress natural selection in spatially structured populations.PNAS nexus · 2023Article
- The landscape of innovation in bacteria, battleships, and beyond.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- The evolution and fate of diversity under hard and soft selection.Proceedings. Biological sciences · 2020Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
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Abstract
How genetic variation arises and persists over evolutionary time despite the depleting effects of natural selection remains a long-standing question. Here, we investigate the impacts of two extreme forms of population regulation-at the level of the total, mixed population (hard selection) and at the level of local, spatially distinct patches (soft selection)-on the emergence and fate of diversity under strong divergent selection. We find that while the form of population regulation has little effect on rates of diversification, it can modulate the long-term fate of genetic variation, diversity being more readily maintained under soft selection compared to hard selection. The mechanism responsible for coexistence is negative frequency-dependent selection which, while present initially under both forms of population regulation, persists over the long-term only under soft selection. Importantly, coexistence is robust to continued evolution of niche specialist types under soft selection but not hard selection. These results suggest that soft selection could be a general mechanism for the maintenance of ecological diversity over evolutionary time scales.
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