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Variation of scutellar bristles in Drosophila: XI. Selection for scutellar microchaetae and the correlated response of scutellar bristles

Published online by Cambridge University Press:  14 April 2009

W. R. Scowcroft
W. R. Scowcroft
Affiliation:
Division of Plant Industry, CSIRO, Canberra, Australia
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The third chromosome mutant, hairy1, adds a varying number of microchaetae to the scutellum. The genetic relationship between this character and scutellar bristles was investigated using the conventional techniques of full- and half-sib analysis of variance and covariance, direct and correlated response to selection for microchaetae and scutellars respectively and diallel crosses at two stages in the programme. There was a good correspondence between the predicted and realized divergence resulting from selection for increased and decreased microchaetae. The correlated response in scutellar bristles appears to be accounted for primarily by genetic changes in microchaetae.

Type
Research Article
Information
Genetics Research , Volume 11 , Issue 2 , April 1968 , pp. 125 - 134
Copyright
Copyright © Cambridge University Press 1968

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