ArticleGenetics2006
Genetic variation and selection response in model breeding populations of Brassica rapa following a diversity bottleneck.
Article in Genetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Bee-pollination promotes rapid divergent evolution in plants growing in different soils.Nature communications · 2024Article
- Realized Genetic Gain in Rice: Achievements from Breeding Programs.Rice (New York, N.Y.) · 2023Review
- Negotiating mutualism: A locus for exploitation by rhizobia has a broad effect size distribution and context-dependent effects on legume hosts.Journal of evolutionary biology · 2022Article
- Gene-based mapping of trehalose biosynthetic pathway genes reveals association with source- and sink-related yield traits in a spring wheat panel.Food and energy security · 2021Article
- On the role of sex differences for evolution in heterogeneous and changing fitness landscapes: insights from pygmy grasshoppers.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Review
- Population genomics of pearl millet (Pennisetum glaucum (L.) R. Br.): Comparative analysis of global accessions and Senegalese landraces.BMC genomics · 2015Article
- The consequences of rare sexual reproduction by means of selfing in an otherwise clonally reproducing species.Theoretical population biology · 2011Article
- SRAP polymorphisms associated with superior freezing tolerance in alfalfa (Medicago sativa spp. sativa).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2010Article
- Allee effects, adaptive evolution, and invasion success.Evolutionary applications · 2010Article
- Population bottlenecks increase additive genetic variance but do not break a selection limit in rain forest Drosophila.Genetics · 2008Article
- Dynamics of colour polymorphism in a changing environment: fire melanism and then what?Oecologia · 2008Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Domestication and breeding share a common feature of population bottlenecks followed by significant genetic gain. To date, no crop models for investigating the evolution of genetic variance, selection response, and population diversity following bottlenecks have been developed. We developed a model artificial selection system in the laboratory using rapid-cycling Brassica rapa. Responses to 10 cycles of recurrent selection for cotyledon size were compared across a broad population founded with 200 individuals, three bottleneck populations initiated with two individuals each, and unselected controls. Additive genetic variance and heritability were significantly larger in the bottleneck populations prior to selection and this corresponded to a heightened response of bottleneck populations during the first three cycles. However, the overall response was ultimately greater and more sustained in the broad population. AFLP marker analyses revealed the pattern and extent of population subdivision were unaffected by a bottleneck even though the diversity retained in a selection population was significantly limited. Rapid gain in genetically more uniform bottlenecked populations, particularly in the short term, may offer an explanation for why domesticators and breeders have realized significant selection progress over relatively short time periods.
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