ArticleBMC plant biology2024
Molecular identification of a Pm4 allele conferring powdery mildew resistance in durum wheat DR88.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Agronomic Performance and Dual Resistance Evaluation to Powdery Mildew and Stripe Rust in 660 Wheat Germplasm Lines.Plants (Basel, Switzerland) · 2026Article
- Bulked segregant RNA sequencing and linkage mapping identify a Pm4 allele conferring stable powdery mildew resistance in wheat breeding line YZ16.BMC plant biology · 2026Article
- Identification and characterization of a novel powdery mildew resistance gene PmCWI45575 in wild emmer wheat.BMC plant biology · 2025Article
- Identification and characterization of the powdery mildew resistance in cultivated emmer wheat accession Lxd-682 via bulked segregant RNA sequencing.BMC plant biology · 2025Article
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Authors and funding
13 authors.
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Abstract
backgroundPowdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is one of the most destructive wheat diseases worldwide. Durum wheat (Triticum turgidum L. var. durum Desf.) is a crucial gene donor for improving common wheat.
resultsIn this study, we investigated a durum wheat accession, DR88, which exhibits broad and high levels of resistance to powdery mildew. Using bulked segregant RNA-Seq (BSR-Seq), we identified a dominant gene, tentatively designated PmDR88, and localized it to 743-776 Mb interval on chromosome arm 2AL according to the reference genome of durum wheat cv. Svevo. Subsequently, PmDR88 was mapped in a genetic region of 3.9 cM flanked by the markers WGRE77410 and WGRC872 at genetic distances of 1.6 and 2.3 cM, respectively; it also co-segregated with JS717×JS718, the diagnostic marker for the Pm4 locus. Genotyping of a large population comprising 5,174 F
conclusionsPmDR88 was mapped in the Pm4 locus. Despite sharing identical amino acid sequences with Pm4d, PmDR88 exhibits distinct expression patterns. Moreover, DR88 shows broad and high levels of resistance to powdery mildew. Two complementary DNA markers were identified for MAS breeding. The molecular identification of PmDR88 will facilitate transfer of this Pm4 allele into susceptible cultivars for resistance improvement or into resistant cultivars for resistance-enhanced pyramiding breeding.
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