Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-25T06:19:59.012Z Has data issue: false hasContentIssue false

Genetic differences between populations of Drosophila melanogaster for a quantitative trait: II. Wild and laboratory populations

Published online by Cambridge University Press:  14 April 2009

C. López-Fanjul
Affiliation:
Institute of Animal Genetics, Edinburgh EH9 3JN
W. G. Hill
Affiliation:
Institute of Animal Genetics, Edinburgh EH9 3JN
Rights & Permissions [Opens in a new window]

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.

Crosses were made between four populations of Drosophila melanogaster – three of which were laboratory populations (Kaduna, Pacific and Canberra) and one recently captured (Stellenbosch) – and a line previously selected for low sternopleural bristle number for many generations from a Kaduna/Pacific source. In each of six replicate lines from each cross selection was practised for low sternopleural bristle number, and subsequently these replicates were intercrossed and reselected.

Initially, similar responses were made in each set of lines, but subsequently more variation between replicates was found in Stellenbosch, which was the primary source of lines which responded to a level below that of the original selected line.

It is concluded that this newly captured population contains genetic variability absent from the laboratory populations. Presumably variability has been lost from the latter populations, leaving essentially the same genes segregating in each.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1973

References

REFERENCES

Anderson, W. W., Dobzhansky, T. & Kastritis, C. D. (1967). Selection and inversion polymorphisms in experimental populations of Drosophila pseudoobscura initiated with the chromosomal constitution of natural populations. Evolution 21, 664671.CrossRefGoogle ScholarPubMed
Anderson, W. W., Dobzhansky, T. & Pavlovsky, O. (1972). A natural population of Drosophila transferred to a laboratory environment. Heredity 28, 101107.CrossRefGoogle ScholarPubMed
Barnes, B. W. (1968). Stabilising selection in Drosophila melanogaster. Heredity 23, 433442.CrossRefGoogle ScholarPubMed
Clayton, G. A. & Robertson, A. (1955). Mutation and quantitative variation. American Naturalist 89, 151158.CrossRefGoogle Scholar
Hill, W. G. (1970). Design of experiments to estimate heritability by regression of offspring on selected parents. Biometrics 26, 565571.CrossRefGoogle ScholarPubMed
Hill, W. G. (1972). Estimation of realised heritabilities from selection experiments. II. Selection in one direction. Biometrics 28, 767780.CrossRefGoogle ScholarPubMed
Latter, B. D. H. (1964). Selection for a threshold character in Drosophila. I. An analysis of the phenotypic variance on the underlying scale. Genetical Research 5, 198210.CrossRefGoogle Scholar
Latter, B. D. H. & Robertson, A. (1962). The effects of inbreeding and artificial selection on reproductive fitness. Genetical Research 3, 110138.CrossRefGoogle Scholar
Linney, R., Barnes, B. W. & Kearsey, M. J. (1971). Variation for metrical characters in Drosophila populations. III. The nature of selection. Heredity 27, 163174.CrossRefGoogle Scholar
Loféz-Fanjul, C. & Hill, W. G. (1973). Genetic differences between populations of Drosophila melanogaster for a quantitative trait. I. Laboratory populations. Genetical Research 22, 5168.CrossRefGoogle Scholar
Malpica, J. M. (1972). Enzyme polymorphisms in four populations of D. melanogaster. Drosophila Information Service 49, 122123.Google Scholar
McGill, A. & Mather, K. (1971). Competition in Drosophila. I. A case of stabilising selection. Heredity 27, 473478.CrossRefGoogle Scholar
Osman, H. El Sayed & Robertson, A. (1968). The introduction of genetic material from inferior into superior strains. Genetical Research 12, 221236.CrossRefGoogle ScholarPubMed
Reeve, E. C. R. (1961). A note on non-random mating in progeny tests. Genetical Research 2, 195203.CrossRefGoogle Scholar
Robertson, A. (1967). The nature of quantitative genetic variation. In Heritage from Mendel (ed. Brink, R. A.), pp. 265280. Madison: University of Wisconsin Press.Google Scholar
Sheridan, A. K., Frankham, R., Jones, L. P., Rathie, K. A. & Barker, J. S. F. (1968). Partitioning of variance and estimation of genetic parameters for various bristle number characters of Drosophila melanogaster. Theoretical and Applied Genetics 38, 179187.CrossRefGoogle Scholar
Underwood, S. (1971). Selection procedures in populations. Unpublished Ph.D. Thesis, University of Edinburgh.Google Scholar