Genome-Wide Survey of SNP Variation Uncovers the Genetic Structure of Cattle Breeds
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Résumé
The imprints of domestication and breed development on the genomes of livestock likely differ from those of companion animals. A deep draft sequence assembly of shotgun reads from a single Hereford female and comparative sequences sampled from six additional breeds were used to develop probes to interrogate 37,470 single-nucleotide polymorphisms (SNPs) in 497 cattle from 19 geographically and biologically diverse breeds. These data show that cattle have undergone a rapid recent decrease in effective population size from a very large ancestral population, possibly due to bottlenecks associated with domestication, selection, and breed formation. Domestication and artificial selection appear to have left detectable signatures of selection within the cattle genome, yet the current levels of diversity within breeds are at least as great as exists within humans.
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La notice
- Revue
- Science
- Thématique
- Genetic and phenotypic traits in livestock
- Domaine
- Biochemistry, Genetics and Molecular Biology
- Établissements canadiens
- —
- Organismes subventionnaires
- National Institute of General Medical SciencesBiotechnology and Biological Sciences Research CouncilAgricultural Research ServiceUniversità Cattolica del Sacro CuoreHolstein Association USANorges ForskningsrådInternational Livestock Research InstituteInternational Atomic Energy AgencyU.S. Department of AgricultureAgriculture and Agri-Food CanadaEmpresa Brasileira de Pesquisa AgropecuáriaMeat and Livestock AustraliaCooperative State Research, Education, and Extension ServiceNational Institutes of HealthAgResearch
- Mots-clés
- DomesticationBiologyGenetic diversityAnimal husbandrySelection (genetic algorithm)SNPGenetic variationGenomeEvolutionary biologyBovine genomeGeneticsSingle-nucleotide polymorphismGenotypeGeneEcologyAgricultureDemographyComputer science
- Résumé présent dans OpenAlex
- oui