Marker-Assisted Selection for Disease Resistance in Potato Breeding in the Ural Region of Russia (2018-2025): Comprehensive Genotyping and Validation of Key Resistance Markers.

ABSTRACT: Marker-assisted selection (MAS) is a key tool in modern potato breeding for developing resistant varieties. This study aimed to evaluate the efficiency of molecular markers for selecting resistance to major pathogens in Ural (Russian Federation) potato breeding material. From 2018 to 2025, a total of 1212 hybrids and varieties were genotyped using 12 SCAR (sequence-characterized amplified regions) markers associated with resistance to potato wart (Synchytrium endobioticum), late blight (Phytophthora infestans), cyst nematodes (Globodera spp.), and viruses (PVX, PVY). The most frequent markers were TG689, N127, N195, and NL25. Phenotypic validation on more than 100 hybrids confirmed strong predictive power for NL25, TG689, and N195 markers in selecting resistance to war

SUBMITTER: Lihodeevskiy GA 

PROVIDER: S-EPMC12841302 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature