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Optimum selection intensities in artificial selection programmes: an experimental evaluation

Published online by Cambridge University Press:  14 April 2009

R. Frankham
R. Frankham
Affiliation:
Institute of Animal Genetics, West Mains Boad, Edinburgh EH9 3JN
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An experimental evaluation of Robertson's (1970) theory concerning optimum intensities of selection for selection of varying durations has been carried out using published results from a long term selection study in Drosophila. Agreement of predicted rankings of treatments with expectations was excellent for low values of t/T (generations/total number scored) but poor for larger values of t/T. This was due to the 20% selection intensity treatments responding worse than expected and the 40% treatments relatively better than expected. Several possible reasons for the discrepancies exist but the most likely explanation is considered to be the greater reduction in effective population size due to selection in treatments with more intense selection.

Type
Research Article
Information
Genetics Research , Volume 30 , Issue 2 , October 1977 , pp. 115 - 119
Copyright
Copyright © Cambridge University Press 1977

References

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