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- Title
Inbreeding depression and outbreeding depression in plants.
- Authors
Schierup, Mikkel Heide; Christiansen, Freddy Bugge
- Abstract
The genetic mechanism underlying an 'optimal outcrossing distance' in plants (sensu Price and Waser) is discussed. Monte Carlo simulations of a population subdivided as a one-dimensional stepping-stone are used to evaluate possible genetic mechanisms. A simple genetic model with two types of unlinked loci, underdominant and partially dominant, with multiplicative effects on fitness, is found to create an 'optimal outcrossing distance' under a wide range of parameter values. The results are compared to, and discussed in relation to a two-locus epistatic model, previously investigated by Campbell and Waser, and found to give very similar results.
- Subjects
EPISTASIS (Genetics); GENE expression; MONTE Carlo method; STOCHASTIC processes; MATHEMATICAL models; GENETICS
- Publication
Heredity, 1996, Vol 77, Issue 5, p461
- ISSN
0018-067X
- Publication type
Article
- DOI
10.1038/hdy.1996.172