Evidence map›Paper›PMID 41933223›Full record

ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2026

Identification and validation of a QTL, QSNS.caas-3D.1, for spikelet number per spike in wheat.

Xuezhong Liang, Junli Yang, Ze Liu, Fuping Zhang, Haiming Han, Shenghui Zhou, Jinpeng Zhang, Bing Han, Yida Lin, Hong-Qing Ling and 3 more

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Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

13 authors.

Xuezhong Liang *State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Junli Yang *State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Ze LiuYazhouwan National Laboratory, Sanya, 572025, China.
Fuping ZhangYazhouwan National Laboratory, Sanya, 572025, China.
Haiming HanState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Shenghui ZhouState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Jinpeng ZhangState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Bing HanState Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Yida LinYazhouwan National Laboratory, Sanya, 572025, China.
Hong-Qing LingYazhouwan National Laboratory, Sanya, 572025, China.
Li ZhengYazhouwan National Laboratory, Sanya, 572025, China. zhenglihappy0617@126.com.
Junbo YangYazhouwan National Laboratory, Sanya, 572025, China. yangjunbo@yzwlab.cn.
Lihui LiState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. lilihui@caas.cn.

Funding

National Key Research and Development Program of China 2021YFD1200600
6 · The paper itself

Abstract

key messageA QTL, QSNS.caas-3D.1, was identified and found to increase spikelet number per spike and grain number per spike without compromising thousand-grain weight. This result was validated in various genetic populations. Increasing the grain number per spike (GNS) is crucial for increasing the yield potential of wheat. This goal depends on the optimization of its key components, namely, the spikelet number per spike (SNS) and kernel number per spikelet (KNS). Here, we constructed a recombinant inbred line (RIL) population comprising 1,220 lines derived from a cross between the high- spikelet-number line PB3504 and the elite cultivar Yecora Rojo (YKL), to dissect the genetic architecture of GNS-related traits. Using the Wheat 60 K SNP array, we constructed a high-density genetic map and conducted multienvironment QTL mapping. A total of 53 quantitative trait loci (QTLs) were identified, among which QSNS.caas-3D.1 was highlighted as a major and stable QTL for SNS, explaining 13.34-13.72% of the phenotypic variation. Fine mapping delimited this locus to a 5.91 Mb genomic interval on chromosome 3D. The yield-enhancing effect of QSNS.caas-3D.1 was validated in near-isogenic lines (NILs) and an independent F

Indexed as

Quantitative Trait LociSeedsTriticumChromosome MappingChromosomes, PlantEdible GrainGenetic LinkageGenetic MarkersGenotypePhenotypePlant BreedingPolymorphism, Single NucleotideGenetic Markers

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PMID41933223

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