Biology

Heterochromatin

Gene

Triticale

Chromosome

Genetics

Nineteen spring wheat-like triticale revertants selected for high grain protein /15.1 - 20.2 %/ and lysine 12.5 - 3.2 %/ out of 976 lines were analysed cytologically to determine their rye-chromosome constitution. They were derived from the crosses of hexaploid wheat T.aestivum L. to hexaploid triticale / XTriticosecale Wittmack /. The C-banding analysis indicated that 7 revertants contained no rye chromosomes, other 7 revertants possessed 1 rye chromosome and 5 revertants retained 4 or 5 rye chromosomes. The chromosomes 1R, 3R, 4R, 5R, 6R and 7R were identified. The deletions of telomeric C-heterochromatin were localized in

RYE-CHROMOSOME CONSTITUTION OF NINETEEN WHEAT-LIKE TRITICALE REVERTANTS SELECTED FOR. HIGH PROTEIN AND