Gene Flow and Hybrid Zones

We have developed models that considered the effects of gene flow on patterns of nuclear and cytonuclear statistical associations between loci (disequilibria), allowing for estimation of asymmetric migration rates. Such asymmetries arise naturally in plant systems with gene flow from both pollen and seed, and in animal systems with different migration rates in males and females.

publications on this topic:

• Orive, M.E. and N. H. Barton (2002).  Associations between cytoplasmic and nuclear loci in hybridizing populations.  Genetics 162:1469-1485.
• Asmussen, M. A. and M. E. Orive (2000).  The effects of pollen and seed migration on nuclear-dictyoplasmic systems.  I. Nonrandom associations and equilibrium structure with both maternal and paternal cytoplasmic inheritance. Genetics 155:813-831.
• Orive, M. E. and M. A. Asmussen (2000). The effects of pollen and seed migration on nuclear-dictyoplasmic systems.  II. A new method for estimating plant gene flow from joint nuclear-cytoplasmic data.  Genetics 155:833-854.