Two Rye Genes Responsible for Abnormal Development of Wheat⁻Rye Hybrids Are Linked in the Vicinity of an Evolutionary Translocation on Chromosome 6R.

The post-zygotic reproductive isolation (RI) in plants is frequently based on the negative interaction of the parental genes involved in plant development. Of special interest is the study of such types of interactions in crop plants, because of the importance of distant hybridization in plant breeding. This study is devoted to map rye genes that are incompatible with wheat, determining the development of the shoot apical meristem in wheat⁻rye hybrids.