- THIS ARTICLE
- Full Text (PDF)
- Alert me when this article is cited
- Alert me if a correction is posted
- SERVICES
- Similar articles in this journal
- Similar articles in PubMed
- Alert me to new issues of the journal
- Download to citation manager
- Reprints & Permissions
- CITING ARTICLES
- Citing Articles via HighWire
- Citing Articles via Google Scholar
- GOOGLE SCHOLAR
- Articles by Uyenoyama, M. K.
- Articles by Bengtsson, B. O.
- Search for Related Content
- PUBMED
- PubMed Citation
- Articles by Uyenoyama, M. K.
- Articles by Bengtsson, B. O.
TOWARDS A GENETIC THEORY FOR THE EVOLUTION OF THE SEX RATIO
Marcy K. Uyenoyama 1 and Bengt Olle Bengtsson 1
1 Department of Biological Sciences, Stanford University, Stanford, California 94305
A genetical model is formulated in which the sex ratio in broods and the relative size of broods are determined by the genotype at an autosomal locus. The results also apply to the case in which the sex-ratio locus is sex linked and expressed in the homogametic sex and to the case in which the locus is expressed in the diploid sex of a haplodiploid organism. Fisher (1930) argued that the sex ratio evolves under natural selection to a value such that parental expenditure is equalized between the sexes. Shaw and Mohler (1953) and MacArthur (1965) proposed that the sex ratio evolves to increase a certain expression for fitness. The sex ratio suggested by Fisher (1930) is in fact identical to the sex ratio specified by these maximization principles. Further, in our model, the Fisherian sex ratio corresponds exactly to the sex ratio at certain equilibria that are approached whenever they exist.
Submitted on August 7, 1978Revised on February 12, 1979
This article has been cited by other articles:
 |
|
 |
|
  S. C. Vaz and A. B. Carvalho Evolution of Autosomal Suppression of the Sex-Ratio Trait in Drosophila Genetics, January 1, 2004; 166(1): 265 - 277. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. B. Carvalho, M. C. Sampaio, F. R. Varandas, and L. B. Klaczko An Experimental Demonstration of Fisher's Principle: Evolution of Sexual Proportion by Natural Selection Genetics, February 1, 1998; 148(2): 719 - 732. [Abstract] [Full Text] [PDF]
|
|