Cytogenetic variation in rye regenerated plants and their progeny

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Abstract
Regenerated plants obtained from immature embryo-derived calluses of four cultivars of rye, as well as their progeny, were cytologically analyzed. Chromosome number modified plants were found among the regenerants. The progeny of apparently normal diploid regenerated plants was tested and in some cases chromosomally abnormal plants appeared. Equally, meiotic abnormalities were observed in some of the regenerated plants and their progenies. The cytological variations observed were inheritable and in some cases both types of abnormalities could be related. The nature of the variations is discussed.Key words: Secale cereale, somaclonal variation, nondiploid plants, meiotic abnormalities.

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