Evidence map›Paper›PMID 42828558›Full record

ArticlePlant cell reports2026

Multi-environment genome-wide association study reveals genetic loci associated with drought tolerance during wheat germination.

Tongtong Liu, Lifeng Gao, Jinbo Li, Nan Qiao, Dongyan Jiang, Jinwen Yang, Jizeng Jia, Jiagang Wang, Daizhen Sun, Ning Li

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Article in Plant cell reports, 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

10 authors.

Tongtong Liu *College of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
Lifeng Gao *State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Jinbo LiCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
Nan QiaoCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
Dongyan JiangCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
Jinwen YangCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
Jizeng JiaState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Jiagang WangCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China. wjg@sxau.edu.cn.
Daizhen SunCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China. sdz64@126.com.
Ning LiCollege of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China. 13159862006@163.com.

Funding

Fundamental Research Program of Shanxi Province 202503021211166Scientific and Technological Innovation Enhancement Project of Shanxi Agricultural University CXGC2025047
6 · The paper itself

Abstract

key messageThis study used multi-index evaluation and GWAS to identify QTLs and candidate genes for wheat germination drought tolerance, notably a 5D pleiotropic hotspot associated with multiple traits, offering breeding targets. Drought tolerance during wheat germination is critical for uniform seedling establishment in arid and semi-arid regions, ultimately affecting final yield. However, the genetic basis of drought tolerance at this stage remains less understood compared to later growth phases. In this study, a natural population of 389 wheat varieties was evaluated under three independent annual environments with drought stress simulated by 20% PEG-6000. Six germination-related traits-germination rate, shoot length, root length, root number, coleoptile length, and germination potential-were measured and their drought resistance coefficients (DRC) were calculated. To overcome the limitations of single-trait evaluation, principal component analysis combined with a membership function method was used to construct a comprehensive drought tolerance evaluation value (D-value). Rankings based on this D-value showed high consistency across environments, with pairwise correlation coefficients exceeding 0.82 (all P < 0.001). Genome-wide association study (GWAS) using 660 K SNP data identified 270 significantly associated SNPs at a threshold of P <1 × 10

Indexed as

Genome-Wide Association StudyGerminationQuantitative Trait LociTriticumDrought ResistanceDroughtsPhenotypePolymorphism, Single NucleotideStress, PhysiologicalDrought toleranceGermination stageGWASMulti-environment analysisQTLWheat

Identifiers

PMID42828558

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