Gene

Biology

Statistics

Genome evolution

Neanderthal

Archaeology

Selection (genetic algorithm)

Computer science

Molecular evolution

Evolutionary biology

Genetics

Genome

Mathematics

Recombination

Geography

Artificial intelligence

Natural selection

Replicate

Science

Selection, recombination, and hybrid evolution Hybridization is an important force in evolution. The effects of hybridization across the whole genome are not understood. Using a fine-scale genetic map, Schumer et al. examined local ancestry in replicate natural hybrid populations of swordtail fish. Each parental species contributes different proportions of genetic material to the genomes of their descendants. Genes from the “minor” (less well-represented) parent occur in regions of the genome that are subject to higher recombination rates and where there are fewer potentially deleterious genes. Neanderthal ancestry in human genomes shows similar patterns. Science , this issue p. 656

Natural selection interacts with recombination to shape the evolution of hybrid genomes