ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2024
Two dwarfing genes Rht-B1b and Rht-D1b show pleiotropic effects on grain protein content in bread wheat (Triticum aestivum L.).
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 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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4 citing papers in PubMed.
- Stable QTL Identification and KASP Marker Development for Grain Protein Content in Wheat Using a Linmai2/Zhong892 RIL Population.Plants (Basel, Switzerland) · 2026Article
- Genetic control of wheat flour end-use quality and rheology by genome-wide association studies.The plant genome · 2026Article
- Identification of a novel dwarfing gene,Molecular breeding : new strategies in plant improvement · 2025Article
- Identification and characterization of QTL for grain protein content derived from the D genome of allohexaploid wheat.Frontiers in plant science · 2025Article
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7 authors.
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Abstract
key messageFive QTL for wheat grain protein content were identified, and the effects of two dwarfing genes Rht-B1b and Rht-D1b on grain protein content were validated in multiple populations. Grain protein content (GPC) plays an important role in wheat quality. Here, a recombinant inbred line (RIL) population derived from a cross between Yangmai 12 (YM12) and Yanzhan 1 (YZ1) was used to identify quantitative trait loci (QTL) for GPC. Two hundred and five RILs and their parents were grown in three years in randomized complete blocks each with two replications, and genotyped using the wheat 55 K SNP array. Five QTL were identified for GPC on chromosomes 1A, 1B, 2D, 4B, and 4D. Notably, QGpc.yaas-4B (co-located with Rht-B1) and QGpc.yaas-4D (co-located with Rht-D1) were consistently detected across all experiments and best linear unbiased estimating, accounting for 6.61-8.39% and 6.05-10.21% of the phenotypic variances, respectively. The effects of these two dwarfing alleles Rht-B1b and Rht-D1b on reducing GPC and plant height were validated in two additional RIL populations and one natural population. This study lays a foundation for further investigating the effects of dwarfing genes Rht-B1b and Rht-D1b on wheat GPC.
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