Sex ratio equilibrium under partial sib mating

Towards a genetic theory for the evolution of the sex ratio. III. Parental and sibling control of brood investment ratio under partial sib-mating.

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 ra...

Partial local mating and the sex ratio: indirect comparative evidence.

Evolution of the Breeding Sex Ratio under Partial Sex Change.

ZIMMER, E. A., AND K. J. NEWTON. 1982. A simple method for the isolation of high molecular weight DNA from individual maize seedlings and tissues, pp, 165-168. In W. F. Sheridan (ed.), Maize for Biological Research. Plant Molecular Biology Assoc., Charlottesville, VA. ZIMMER, E. A., E. R. lUPE,AND V. E. WALBOT. 1988. Ribosomal gene structure, variation and inheritance in maize and its ancestors...

Sib-mating does not lead to facultative sex ratio adjustment in the parasitoid wasp, Nasonia vitripennis

Sex ratio theory predicts that in haplodiploid species, females should lay a relatively more female-biased offspring sex ratio when they mate with a sibling compared with when they mate with a non-relative. This is because in haplodiploids, inbreeding leads to females having greater relatedness to daughters relative to sons. This prediction has only been tested in the parasitoid wasp Nasonia vi...

Kin selection is implicated in partial sib-mating populations with constant viability differences before mating.

The change in the frequency of a rare mutant allele under constant sex-differentiated viability selection in an infinite, partial full-sib mating population is studied. The diplo-diploid and haplo-diploid polygynous models are considered with a Poisson distribution for the number of offspring produced by every mated female. Reproduction is followed by weak selection among the offspring and then...