CREATION OF LINES WITH INTERVARIETAL SUBS TITUTION OF INDIVIDUAL WHEAT CHROMOSOME USING ALIEN MARKER GENE FROM RYE

The possibility of performing directed and rapid intervarietal substit ution of common wheat chromosomes with minimal cytological control was first demonstrated in experiments with an alien gene-rye marker Hp. I t was shown that monosomic lines with the alien substitution marked by rye chromosome 5R may be used as a recipient for creating lines with intervarietal substitution. Monosomic lines with rye chromosome 5R wer e maintained during long-term reproduction (14 generations). Maternal monosomics with univalent rye chromosome 5R were selected according to their phenotypes with expression of the rye gene Hp. Selection of pat ernal monosomic plants with a chromosome from a donor cultivar was bas ed on absence of the alien marker gene during repeated successive back crosses.