selection coefficient
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se·lec·tion co·ef·fi·cient (s),
the proportion of progeny or potential progeny not surviving to sexual maturity; usually defined artificially by expressing the fitness of a phenotype as a fraction of the mean or optimal fitness to give the relative fitness, and subtracting this fraction from unity. If the mean size of family in the population is 3.2 and that for a particular genotype is 2.4 then the fitness of the phenotype is 2.4/3.2 = 0.75 and the selection coefficient = 1 - 0.75 = .25.
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se·lec·tion co·ef·fi·cient
(s) (sĕ-lek'shŭn kō'ĕ-fish'ĕnt)The proportion of progeny or potential progeny not surviving to sexual maturity; usually defined artificially by expressing the fitness of a phenotype as a fraction of the mean or optimal fitness to give the relative fitness, and subtracting this fraction from unity.If the mean size of family in the population is3.2 and that for a particular genotype is 2.4,then the fitness of the phenotype is 2.4/3.2 =0.75, and the selection coefficient =1- 0.75 =.25 = 5.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
selection coefficient
see SELECTION PRESSURE.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005