A comparison of three family indices to increase productivity in Drosophila is reported. Seven generations of selection were carried out in each of two replicated lines. It was found that the simplest index, that based only on the dam performance, was the more efficient in both replicates. Possible explanations of this result are discussed: reduction of selection differentials, inbreeding depression, and the use of a wrong genetic model and/or wrong parameters.

M. Perez-Enciso, Miguel A Toro

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XIII. Plenary lectures, molecular genetics and mapping, selection, prediction and estimation., , 246–249, 1990
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