ArticleScience advances2021
Sweepstake reproductive success and collective dispersal produce chaotic genetic patchiness in a broadcast spawner.
Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Article
- Article
- Genetic Relatedness and Parentage Analysis as a Framework to Enhance Local Conservation Strategies for Marine Species.Ecology and evolution · 2025Article
- Genetic diversity of Anadara tuberculosa in two localities of the Colombian Pacific Coast.Scientific reports · 2024Article
- Panmixia in the American eel extends to its tropical range of distribution: Biological implications and policymaking challenges.Evolutionary applications · 2023Article
- Multi-omics for studying and understanding polar life.Nature communications · 2023Review
- Article
- Interpreting the pervasive observation of U-shaped Site Frequency Spectra.PLoS genetics · 2023Article
- Article
- Efficient ancestry and mutation simulation with msprime 1.0.Genetics · 2022Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A long-standing paradox of marine populations is chaotic genetic patchiness (CGP), temporally unstable patterns of genetic differentiation that occur below the geographic scale of effective dispersal. Several mechanisms are hypothesized to explain CGP including natural selection, spatiotemporal fluctuations in larval source populations, self-recruitment, and sweepstake reproduction. Discriminating among them is extremely difficult but is fundamental to understanding how marine organisms reproduce and disperse. Here, we report a notable example of CGP in the Antarctic limpet, an unusually tractable system where multiple confounding explanations can be discounted. Using population genomics, temporally replicated sampling, surface drifters, and forward genetic simulations, we show that CGP likely arises from an extreme sweepstake event together with collective larval dispersal, while selection appears to be unimportant. Our results illustrate the importance of neutral demographic forces in natural populations and have important implications for understanding the recruitment dynamics, population connectivity, local adaptation, and resilience of marine populations.
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Registered trials
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