- THIS ARTICLE
- Full Text
- Full Text (PDF)
- Data Supplement
-
All Versions of this Article:
genetics.105.055095v1
175/3/1351 most recent - Alert me when this article is cited
- Alert me if a correction is posted
- SERVICES
- Email this article to a friend
- 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 Billiard, S.
- Articles by Vekemans, X.
- Search for Related Content
- PUBMED
- PubMed Citation
- Articles by Billiard, S.
- Articles by Vekemans, X.
Originally published as Genetics Published Articles Ahead of Print on January 21, 2007.
Genetics, Vol. 175, 1351-1369, March 2007, Copyright © 2007
doi:10.1534/genetics.105.055095
A General Model to Explore Complex Dominance Patterns in Plant Sporophytic Self-Incompatibility Systems
Sylvain Billiard*,
,1,
Vincent Castric and
Xavier Vekemans
* Ecologie, Systématique et Evolution, UMR 8079, Université Paris-Sud, 91405 Orsay Cedex, France and Génétique et Evolution des Populations Végétales, UMR CNRS 8016, Université des Sciences et Technologies de Lille 1, F-59655 Villeneuve d'Ascq Cedex, France
1 Corresponding author: Laboratoire GEPV, UMR 8016, Bât. Sn2, Université Lille 1, F-59655 Villeneuve d'Ascq Cedex, France.
E-mail: sylvain.billiard{at}univ-lillel.fr
We developed a general model of sporophytic self-incompatibility under negative frequency-dependent selection allowing complex patterns of dominance among alleles. We used this model deterministically to investigate the effects on equilibrium allelic frequencies of the number of dominance classes, the number of alleles per dominance class, the asymmetry in dominance expression between pollen and pistil, and whether selection acts on male fitness only or both on male and on female fitnesses. We show that the so-called "recessive effect" occurs under a wide variety of situations. We found emerging properties of finite population models with several alleles per dominance class such as that higher numbers of alleles are maintained in more dominant classes and that the number of dominance classes can evolve. We also investigated the occurrence of homozygous genotypes and found that substantial proportions of those can occur for the most recessive alleles. We used the model for two species with complex dominance patterns to test whether allelic frequencies in natural populations are in agreement with the distribution predicted by our model. We suggest that the model can be used to test explicitly for additional, allele-specific, selective forces.
This article has been cited by other articles:
 |
|
 |
|
  K. Edh, B. Widen, and A. Ceplitis Molecular Population Genetics of the SRK and SCR Self-Incompatibility Genes in the Wild Plant Species Brassica cretica (Brassicaceae) Genetics, March 1, 2009; 181(3): 985 - 995. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. H. Schierup, J. S. Bechsgaard, and F. B. Christiansen Selection at Work in Self-Incompatible Arabidopsis lyrata. II. Spatial Distribution of S Haplotypes in Iceland Genetics, October 1, 2008; 180(2): 1051 - 1059. [Abstract] [Full Text] [PDF]
|
|