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Hace 6 días · We find that natural selection has massively reduced genetic diversity leading to a single clonal lineage constituting most of the population by generation F50. Selection favored alleles originating from similar climates to that of Davis, and targeted genes regulating reproductive development, including some of the most well-characterized barley diversification loci, Vrs1, HvCEN, and Ppd-H1.
We found that natural selection has dominated the evolution of CCII. The speed of wholesale genetic restructuring in CCII suggests that the magnitude of selection in a real-world environment is larger than typically assumed.
8 de jul. de 2024 · Through natural selection, the population will evolve the combination of traits best suited to the local environment, which is generally represented on the landscape as climbing a local fitness peak. However, it transpires that not all regions of the landscape are equally admissible.
21 de jun. de 2024 · To understand how natural selection shapes re-adaptation into the wild, we investigated one of the most successful colonizers in history, the European rabbit.
Hace 4 días · Natural selection, then, can be defined as the differential reproduction of alternative hereditary variants, determined by the fact that some variants increase the likelihood that the organisms having them will survive and reproduce more successfully than will organisms carrying alternative variants.
5 de jul. de 2024 · Natural selection, process in which an organism adapts to its environment through selectively reproducing changes in its genotype. It reduces the disorganizing effects of migration, mutation, and genetic drift by multiplying the incidence of helpful mutations, since harmful mutation carriers leave few or no offspring..
Hace 6 días · Hugh-Jones and Abdellaoui explain patterns of natural selection on polygenic scores in the UK, using an economic theory of fertility derived from Becker et al. ().The theory has two components: 1. There is a trade-off between time spent working and raising children. This “substitution effect” leads people with more human capital and higher expected wages to have fewer children.
