METHOD FOR PRODUCTION OF SPRING SOFT WHEAT LINES WITH SHORT-TERM HEADING STAGE Russian patent published in 2020 - IPC A01H1/04 

FIELD: biotechnology.

SUBSTANCE: invention represents a method for selection of spring soft wheat plants with a shorter term of heading stage, including crossing parental samples of soft wheat, self-fertilization of hybrids of first generation F₁ to produce hybrids of second generation F₂, among which using molecular PCR markers, selecting plants with genes determining the term of heading stage, repeated self-fertilization of selected plants to produce a generation of F₃ and testing the latter in field conditions for assessing the term of heading stage, where the "Tulun 15" soft spring wheat breed containing allele of insensitivity to the Ppd-D1a photoperiod, as well as Vrn-A1a, Vrn-B1c and Vrn-B3a alleles, which determine early terms of earing, are crossed with commercial breed of soft wheat "Obskaya 2", is selected from generation F₂ using molecular PCR markers 1a and 1b plants containing in homozygous state allele Ppd-D1a, analyzing plants F₂, taken with the help of molecular markers 1a and 1b, allele-specific markers 2a, 3a, 3b, 4a, 4b are used to select plants containing alleles Vrn-A1a, Vrn-B1c and Vrn-B3a in the homozygous condition, which determine early terms of earing.

EFFECT: invention broadens the functionality of the known method.

1 cl, 4 dwg, 2 tbl