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Related to artificial selection: Directional selection
interference by humans with natural selection by purposeful breeding of animals or plants of specific genotype or phenotype to produce a strain with desired characteristics; for example, breeding of dairy cattle for high milk production.
Farlex Partner Medical Dictionary © Farlex 2012
Human intervention in animal or plant reproduction or survival to allow only individuals with desirable traits to reproduce.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
ar·ti·fi·cial se·lec·tion(ahr'ti-fish'ăl sĕ-lek'shŭn)
Interference with natural selection by purposeful breeding of animals or plants of specific genotype or phenotype to produce a strain with desired characteristics.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
artificial selectiona SELECTION process in which man chooses particular organisms from which to breed, based upon their PHENOTYPE, so aiming to alter the average GENOTYPE and phenotype of the resulting progeny (a form of DIRECTIONAL SELECTION). This process is carried out by plant and animal breeders whose job is to enhance certain features of the organisms with which they work, e.g. greater resistance to root rot in tomatoes, or higher milk yield in cattle. Such selection depends upon the presence of GENETIC VARIABILITY in the chosen population. See also HERITABILITY.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005