ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2019
High-resolution mapping of rachis nodes per rachis, a critical determinant of grain yield components in wheat.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed.
- Post-Translational Control of TaFT1 by WAPO1 Ubiquitination Shapes Spike Architecture and Yield in Wheat.Plant biotechnology journal · 2026Article
- Cultivar- and phase-specific effects of light on kernel number and compensation via kernel weight in wheat.Plant physiology · 2026Article
- Spatial and single-cell expression analyses reveal complex expression domains in early wheat spike development.Genome biology · 2025Article
- Identification of robust yield quantitative trait loci derived from cultivated emmer for durum wheat improvement.The plant genome · 2025Article
- Article
- Natural alleles of LEAFY and WAPO1 interact to regulate spikelet number per spike in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Novel PHOTOPERIOD-1 gene variants associate with yield-related and root-angle traits in European bread wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- GWAS in a Collection of Bulgarian Old and Modern Bread Wheat Accessions Uncovers Novel Genomic Loci for Grain Protein Content and Thousand Kernel Weight.Plants (Basel, Switzerland) · 2024Article
- Genome-wide association study reveals 18 QTL for major agronomic traits in a Nordic-Baltic spring wheat germplasm.Frontiers in plant science · 2024Article
- Identification and Validation of a Stable Major-Effect Quantitative Trait Locus for Kernel Number per Spike on Chromosome 2D in Wheat (International journal of molecular sciences · 2023Article
- Haplotype-Based Genome-Wide Association Analysis Using Exome Capture Assay and Digital Phenotyping Identifies Genetic Loci Underlying Salt Tolerance Mechanisms in Wheat.Plants (Basel, Switzerland) · 2023Article
- WheatCENet: A Database for Comparative Co-expression Networks Analysis of Allohexaploid Wheat and Its Progenitors.Genomics, proteomics & bioinformatics · 2023Article
- Identification and validation of quantitative trait loci for fertile spikelet number per spike and grain number per fertile spikelet in bread wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Identification of major QTLs for yield-related traits with improved genetic map in wheat.Frontiers in plant science · 2023Article
- A Haplotype-Based GWAS Identified Trait-Improving QTL Alleles Controlling Agronomic Traits under Contrasting Nitrogen Fertilization Treatments in the MAGIC Wheat Population WM-800.Plants (Basel, Switzerland) · 2022Article
- Genetic incorporation of genes for the optimal plant architecture in common wheat.Molecular breeding : new strategies in plant improvement · 2022Article
- Overexpression of the WAPO-A1 gene increases the number of spikelets per spike in bread wheat.Scientific reports · 2022Article
- Genetics of the Inverse Relationship between Grain Yield and Grain Protein Content in Common Wheat.Plants (Basel, Switzerland) · 2022Article
- High-resolution detection of quantitative trait loci for seven important yield-related traits in wheat (Triticum aestivum L.) using a high-density SLAF-seq genetic map.BMC genomic data · 2022Article
- Capturing Wheat Phenotypes at the Genome Level.Frontiers in plant science · 2022Review
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Authors and funding
12 authors.
Funding
Abstract
key messageExploring large genomic data sets based on the latest reference genome assembly identifies the rice ortholog APO1 as a key candidate gene for number of rachis nodes per spike in wheat. Increasing grain yield in wheat is a key breeding objective worldwide. Several component traits contribute to grain yield with spike attributes being among the most important. In this study, we performed a genome-wide association analysis for 12 grain yield and component traits measured in field trials with contrasting agrochemical input levels in a panel of 220 hexaploid winter wheats. A highly significant, environmentally consistent QTL was detected for number of rachis nodes per rachis (NRN) on chromosome 7AL. The five most significant SNPs formed a strong linkage disequilibrium (LD) block and tagged a 2.23 Mb region. Using pairwise LD for exome SNPs located across this interval in a large worldwide hexaploid wheat collection, we reduced the genomic region for NRN to a 258 Kb interval containing four of the original SNP and six high-confidence genes. The ortholog of one (TraesCS7A01G481600) of these genes in rice was ABBERANT PANICLE ORGANIZATION1 (APO1), which is known to have significant effects on panicle attributes. The APO1 ortholog was the best candidate for NRN and was associated with a 115 bp promoter deletion and two amino acid (C47F and D384 N) changes. Using a large worldwide collection of tetraploid and hexaploid wheat, we found 12 haplotypes for the NRN QTL and evidence for positive enrichment of two haplotypes in modern germplasm. Comparison of five QTL haplotypes in Australian yield trials revealed their relative, context-dependent contribution to grain yield. Our study provides diagnostic SNPs and value propositions to support deployment of the NRN trait in wheat breeding.
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