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Optimum selection strategies: studies with Drosophila melanogaster

Published online by Cambridge University Press:  14 April 2009

Aurora García-Dorado
Affiliation:
Departamento de Genética, Facultad de Biologia, Universidad Complutense, 28040 Madrid, Spain
Carlos López-Fanjul
Affiliation:
Departamento de Genética, Facultad de Biologia, Universidad Complutense, 28040 Madrid, Spain
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Summary

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An experimental evaluation of Jódar & López-Fanjul's (1977) theoretical treatment of the optimum proportions to select when the numbers of males and females scored are unequal has been carried out for sternopleural bristle number in Drosophila melanogaster. Three different values of the sex-ratio (c) were considered (c = 1, 4 and 10) for the same total number of individuals scored per generation. For each c value two types of line were selected with proportions theoretically maximizing the response to be attained after 10 or 20 generations, respectively. Thus, there were six types of lines and each type was replicated sixfold. A good qualitative agreement was found between the observed and the expected rankings of the different types of selected lines at the designated generations.

Type
Short Paper
Copyright
Copyright © Cambridge University Press 1985

References

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