Molecular Cytogenetic Identification of the Wheat-Dasypyrum villosum T3DL·3V#3S Translocation Line with Resistance against Stripe Rust.

ABSTRACT: The annual species Dasypyrum villosum possesses several potentially valuable genes for the improvement of common wheat. Previously, we identified a new stripe rust-resistant line, the Chinese Spring (CS)-D. villosum 3V#3 (3D) substitution line (named CD-3), and mapped its potential rust resistance gene (designated as YrCD-3) on the 3V#3 chromosome originating from D. villosum. The objective of the present study was to further narrow down the YrCD-3 locus to a physical region and develop wheat-3V#3 introgression lines with strong stripe rust resistance. By treating CD-3 seeds with ⁶⁰Co γ-irradiation, two CS-3V#3 translocation lines, T3V#3S.3DL and T3DS.3V#3L (termed 22-12 and 24-20, respectively), were identified from the M₄ generatio

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9145344 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature