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GENETIC FEATURES OF CREATION AND BREEDING OF HETEROPLASM TRICTICALE
Last modified: 2017-06-29
Abstract
The studies on the creation of rye-wheat amphidiploids with rye-type cytoplasm - secalotriticum (ssp., secalotricum Rozenst., Et Mittelst., S/RRAABB, 2n = 6x = 42) were carried out. Secalotriticum was created by hybridization of tetraploid rye (S/RRRR, 2n = 4x = 28) with hexaploid triticale (T/AABBRR, 2n = 6x = 42) followed by single backcross of rye-triticale F1 hybrids (S/RRABR, 5x = 35) with triticale. Triticale was taken as a bridge species - a source of wheat genomes and a rye S-RNAase inhibitor, which allowed us to overcome the one-sided progamous incompatibility of rye with wheat. The created material consisting of over 50 lines of secalotriticum has been involved in breeding.
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