title: Selection for six scutellar chaetae in Drosophila melanogaster.
abstract: 1. From a base population showing some flies with more than the normal 4 scutellar chaeta phenotype directional selection was carried out and lead to a line with many flies having 6 chaetae. 2. Selection was then practised for 6 chaetae such that the extra 2 chaetae were in the anterior left and anterior right positions on the scutellum. This lead to a line with most flies having this chaeta number and pattern, therefore showing some canalization. 3. Additive genetic activity controlling the increased chaeta number was found on all the 3 major chromosomes.
authors.affiliation: Department of Genetics and Human Variation, La Trobe University, Bundoora, Victoria, Australia.
authors.forename: I T
authors.initials: IT
authors.lastname: Macbean
authors.forename: J A
authors.initials: JA
authors.lastname: McKenzie
authors.forename: P A
authors.initials: PA
authors.lastname: Parsons