Screwworm eradication: inadvertent selection for noncompetitive ecotypes during mass rearing

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Science  06 Aug 1976:
Vol. 193, Issue 4252, pp. 491-493
DOI: 10.1126/science.941019


The rapid fixation of a rare allelic form of alpha-glycerol phosphate dehydrogenase is related to a loss of competitive ability in nature of factory-reared screwworm flies. The increase in frequency results from selection for survival under conditions of domestication and rapid development at high constant temperatures in the factory.