Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-07-07T01:09:30.109Z Has data issue: false hasContentIssue false
  • English
  • Français

The genetic analysis of the direct and correlated response to selection for chaetae in Drosophila melanogaster

Published online by Cambridge University Press:  14 April 2009

W. R. Scowcroft
W. R. Scowcroft
Affiliation:
Division of Plant Industry, CSIRO, Canberra, Australia

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The direct and correlated response to selection of scutellar microchaetae and scutellar bristles has been analysed by determining the contribution of the three major chromosomes, alone and in combination with each other, to the overall response. The results of the analysis confirm a previous finding, based on a formal statistical approach, that response to selection for microchaetae had highly pleiotropic effects on scutellar bristles. In lines selected, each for high and low microchaetae, genetic changes in the 2nd and 3rd chromosomes are pre-eminent and essentially equal. Inter-chromosomal interactions are of relatively minor importance in interpreting the response to selection for microchaetae but assume greater importance with respect to the correlated character. The results are discussed in terms of the genetic correlation between fitness and the character measured.

Type
Research Article
Information
Genetics Research , Volume 22 , Issue 1 , August 1973 , pp. 1 - 7
Copyright
Copyright © Cambridge University Press 1973

References

REFERENCES

Bohren, B. B., Hill, W. G. & Robertson, A. (1966). Some observations on asymmetrical correlated response to selection. Genetical Research 7, 44–57.Google Scholar
Dobzhansky, Th. (1956). What is an adaptive trait? American Naturalist 90, 337–347.Google Scholar
Falconer, D. S. (1960). Introduction to Quantitative Genetics. Edinburgh: Oliver and Boyd.Google Scholar
Fraser, A. S., Scowcroft, W. R., Nassar, R., Angeles, H. & Bravo, G. (1965). Variation of scutellar bristles in Drosophila. IV. Effects of selection. Australian Journal of Biological Science 18, 619–641.CrossRefGoogle ScholarPubMed
Latter, B. D. H. (1966). Selection for a threshold character in Drosophila. II. Homeostatic behaviour on relaxation of selection. Genetical Research 8, 205–218.Google Scholar
Lindsley, D. L. & Grell, E. H. (1968). Genetic variations of Drosophila melanogaster. Publications. Carnegie Institute of Washington, no. 627.Google Scholar
Rendel, J. M. (1959). Canalization of the scute phenotype. Evolution 13, 425–439.Google Scholar
Robertson, A. (1955). Selection in animals: synthesis. Cold Spring Harbor Symposia in Quantitative Biology 20, 225–229.CrossRefGoogle ScholarPubMed
Robertson, A. (1967). The nature of quantitative genetic variation. In Heritage from Mendel, ed. Brink, R. A.. University of Wisconsin Press.Google Scholar
Scowcroft, W. R. (1966). Variation of scutellar bristles in Drosophila. IX. Chromosomal analysis of scutellar bristle selection lines. Genetics 53, 389–402.Google Scholar
Scowcroft, W. R. (1968). Variation of scutellar bristles in Drosophila. XI. Selection for scutellar microchaetae and the correlated response of scutellar bristles. Genetical Research 11, 125–134.Google Scholar
Whittle, J. R. S. (1969). Genetic analysis of the control of number and pattern of scutellar bristles in Drosophila melanogaster. Genetics 63, 167–181.Google Scholar