Features of chromosome behavior in meiosis in the common wheat lines containing genetic material of tetraploid wheat species

The study of the chromosome behavior in meiosis of hybrid lines obtained on the base of crossing of common wheat with tetraploid wheat species showed that introgression of alien genetic material into common wheat genome had no negative effect on its meiotic stability. The Number of defective cells was small, not only at the metaphase I stage, but also on the final stage of tetrads. Variation relative to the level of cytological stability between the studied lines is the consequence of differences in the number and localization of the introgression fragments of the genomes of tetraploid wheat in the hybrid genome. The influence of the cytoplasm on the formation of the karyotype of introgression lines of wheat was found.