, Volume 21, Issue 1, pp 32–47 | Cite as

Unilateral incompatibility: hypotheses, debate and its implications for plant breeding

  • M. M. F. Abdalla


Unilateral incompatibility, its evolution and the hypotheses put forward to explain this phenomenon have been discussed. A new hypothesis is presented giving an easy explanation of the problems arisen and of the results obtained hitherto. The results to be expected from crosses between self-compatible and self-incompatible species and the crossability and (in)compatibility behaviour of their hybrids and segregating generations are elaborated. It has been shown how self-compatible hybrids and segregants could be selected and introduced into a breeding program aiming at combining characters from self-compatible and self-incompatible parents.


Plant Physiology Breeding Program Plant Breeding Easy Explanation Unilateral Incompatibility 
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Copyright information

© Dr. H. De Haan 1972

Authors and Affiliations

  • M. M. F. Abdalla
    • 1
  1. 1.Institute of Plant Breeding (IvP)Wageningenthe Netherlands

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