How is life history variation generated from the genetic resource allocation?
- 27 Downloads
A simple quantitative genetic model is proposed to explain the observed genetic correlation structure of a bruchid beetleCallosobruchus chinensis in terms of two underlying variables: the resource acquisition and the resource allocation. Heritabilities and genetic correlations among age-specific, fecundities are regarded as consequences of genetic variations of the two variables. Genetic correlations are predominantly positive in both predictions and observations. Nonetheless, comparison between observed and predicted values in heritabilities, genetic correlations, and genetic principal components suggested significant genetic variances both of the resource allocation and the resource acquisition. The prediction of the model is discussed in relation, to experimental tests of trade-off in life history evolution.
Key wordsantagonistic pleiotropy trade-off resource allocation quantitative genetics life history
Unable to display preview. Download preview PDF.
- Bell, G. and V. Koufopanou (1986) The cost of reproduction.Oxford Survey of Evolutionary Biology 3: 83–131.Google Scholar
- Crow, J. F. and M. J. Simmons (1983) The mutation load inDrosophila.In M. Ashburner, H. L. Carson and J. N. Thompson, Jr. (eds.)The genetics and biology of Drosophila, Vol. 3c. Academic Press, London.Google Scholar
- Nomura, T. and K. Yonezawa (1990) Genetic correlations among life history characteris of adult females in the azuki bean weevil,Callosobruchus chinensis (L) (Coleoptera: Bruchidae).Applied Entomology and Zoology,25: 423–430.Google Scholar
- Roff, D. A. (1992)Evolution of life histories. Chapman & Hall, New York.Google Scholar
- Rose, M. (1982) Antagonistic pleiotropy, dominance and genetic variation.Heredity 48: 63–78.Google Scholar
- Rose, M. (1983) Theories of life-history evolution.American Zoologist 23: 15–24.Google Scholar
- Stearns, S. C. (1992)The evolution of life histories. Oxford University Press, Oxford.Google Scholar
- Stuart, A. and J. K. Ord (1987)Kendall's advanced theory of statistics. Vol. 1. Charles Griffin, London.Google Scholar
- Tanaka, Y. (1990) Age specificity of inbreeding depression during a life cycle, ofCallosobruchus chinensis (Coleoptera: Bruchidae).Researches on Population Ecology 32: 329–335.Google Scholar
- Tanaka, Y. (1993) A genetic mechanism for the evolution of senescence inCallosobruchus chinensis (the azuki bean weevil).Heredity 70: 318–321.Google Scholar