Karyotype Reorganization in Wheat-Rye Hybrids Obtained via Unreduced Gametes: Is There a Limit to the Chromosome Number in Triticale?

To date, few data have been accumulated on the contribution of meiotic restitution to the formation of hybrid karyotypes. In this study, based on FISH and C-banding, karyotype reorganization was observed in three groups of F wheat-rye hybrids 1R(1A) × R. Aberrations, including aneuploidy, telocentrics, and Robertsonian translocations, were detected in all groups.