Abundant multilocus polymorphisms caused by genetic interaction between species on trait-for-trait basis

V. M. Kirzhner, A. B. Korol, E. Nevo

Research output: Contribution to journalArticlepeer-review


This paper deals with the problem of polymorphism maintenance in species coevolution mediated by selection for quantitative traits controlled by Mendelian genes. We showed here that the conditions for polymorphism maintenance in interacting species can be deduced from the behavior of the isolated partners in stable and changing environments. This allows also to address such difficult questions as evolution of sex and recombination, that can not be considered properly in non-Mendelian models. An abundance of polymorphic regimes was revealed in the proposed genetic model. The obtained results demonstrate a remarkable property of trait-dependent coevolution concerning the conditions for maintenance of genetic polymorphism: what seems to be more realistic, that is, non-equal gene effects and deviation from purely additive within-locus gene action, promotes polymorphism.

Original languageEnglish
Pages (from-to)61-70
Number of pages10
JournalJournal of Theoretical Biology
Issue number1
StatePublished - 7 May 1999

Bibliographical note

Funding Information:
We thank P[ Neal\ L[ Blaustein and S[ Potts for helpful discussions[ We are especially grateful to W[ D[ Hamilton\ U[ Dieckmann and an unknown referee for many important comments and suggestions[ The study was _nancially supported by the Israeli Ministry of Absorption\ Ministry of Science\ grants 3036 and 0315\ and the Ancell Teicher Research Foundation for Molecular Genetics and Evolution[

ASJC Scopus subject areas

  • General Agricultural and Biological Sciences
  • Applied Mathematics
  • General Biochemistry, Genetics and Molecular Biology
  • General Immunology and Microbiology
  • Statistics and Probability
  • Modeling and Simulation


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