Abstract
A sib analysis of adult life-history characters was performed on about twelve hundred females from a laboratory Drosophila melanogaster population that had been sampled from nature and cultured so as to preserve its genetic variability. The following results were found. There was no detectable trend with age in additive or dominance genetic variances for age-specific fecundity. Environmental variance for age-specific fecundity increased with age. The genetic variance for fecundity characters was primarily additive. The genetic variance for longevity was primarily dominance variance. There were negative genetic correlations between early fecundity and lifespan, as well as between mean egg-laying rate and longevity.
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Selected References
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- Charlesworth B., Williamson J. A. The probability of survival of a mutant gene in an age-structured population and implications for the evolution of life-histories. Genet Res. 1975 Aug;26(1):1–10. doi: 10.1017/s0016672300015792. [DOI] [PubMed] [Google Scholar]
- HIRAIZUMI Y. Negative correction between rate of development and female fertility in Drosophila melanogaster. Genetics. 1961 Jun;46:615–624. doi: 10.1093/genetics/46.6.615. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mukai T., Cardellino R. A., Watanabe T. K., Crow J. F. The genetic variance for viability and its components in a local population of Drosophila melanogaster. Genetics. 1974 Dec;78(4):1195–1208. doi: 10.1093/genetics/78.4.1195. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Richardson R. H., Kojima K. I. The kinds of genetic variability in relation to selection responses in Drosophila fecundity. Genetics. 1965 Sep;52(3):583–598. doi: 10.1093/genetics/52.3.583. [DOI] [PMC free article] [PubMed] [Google Scholar]