ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2025
Cytogenetic characterization of a novel wheat-rye 2R (2D) substitution line YT9 conferring powdery mildew resistance from the three-leaf stage and physical mapping of PmYT9.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Fine mapping and transferring wheat adult-plant powdery mildew resistance gene Pm62 through T2DS·2VL translocations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Characterization of a New Powdery Mildew Resistance Gene on Chromosome 1R from Hexaploid Triticale Transferred to Wheat.Plants (Basel, Switzerland) · 2026Article
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11 authors.
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Abstract
key messageA wheat-rye 2R (2D) substitution line with PmYT9 conferring powdery mildew resistance was characterized. PmYT9 was mapped to a 14. 55 Mb interval on 2RL. A homozygous translocation line carrying PmYT9 was developed. Powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), poses a significant threat to wheat (Triticum aestivum L.) production. The identification and utilization of novel resistance genes from wheat relatives are an effective strategy for sustainable disease management. Rye (Secale cereale L. RR), a tertiary gene pool of wheat, harbors abundant genetic diversity. In this study, we developed a novel wheat-rye derivative line, YT9, by crossing hexaploid triticale 09R1-16 with wheat breeding line PB9. Genomic in situ hybridization (GISH), fluorescence in situ hybridization (FISH), and agronomic trait evaluations confirmed that YT9 was a stable 2R (2D) substitution and T1BL·1RS translocation line with favorable performance. Resistance phenotyping and microscopic observation of fungal growth revealed that YT9 exhibited resistance to Bgt from the three-leaf stage. Genetic analysis localized the resistance gene to chromosome arm 2RL of rye, designated PmYT9. To map PmYT9,
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