Genome-Wide Association Studies for Wheat Height Under Different Nitrogen Conditions

Tingzhi Yang; Wenjiao Zhang; Yutao Cui; Yalin Wang; Huimin Qin; Xinru Lv; Xiaohan Xie; Fulin Yang; Kangzhen Ren; Jinlan Ni; Xuehuan Dai; Jianbin Zeng; Wenxing Liu; Wujun Ma; Hongsheng Zhang; Dengan Xu

doi:10.3390/agriculture14111998

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Genome-Wide Association Studies for Wheat Height Under Different Nitrogen Conditions

Journal article

Open access

Peer reviewed

Genome-Wide Association Studies for Wheat Height Under Different Nitrogen Conditions

Tingzhi Yang, Wenjiao Zhang, Yutao Cui, Yalin Wang, Huimin Qin, Xinru Lv, Xiaohan Xie, Fulin Yang, Kangzhen Ren, Jinlan Ni, …

Agriculture (Basel), Vol.14(11), 1998

2024

DOI: https://doi.org/10.3390/agriculture14111998

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Abstract

Chromosomes

Cultivars

Efficiency

Enzymes

Fertilizers

Gene loci

Genetic diversity

Genetic markers

Genome-wide association studies

Genomes

Genotype & phenotype

Growing season

Lodging

Missing data

Nitrogen

Parameter estimation

Phenotypic variations

Plant breeding

Plant layout

Plants (botany)

Population

Quality control

Single-nucleotide polymorphism

Wheat

Lodging causes a reduction in wheat (Triticum aestivum L.) yield and quality. A shorter plant height (PH) can reduce the incidence of lodging. The overuse of nitrogen promotes excessive vegetative growth, leads to taller plants, and increases lodging risk. Here, we utilized genome-wide association studies (GWASs) to explore the genetic basis of PH and the nitrogen effect index (NEI), a parameter to estimate the responses of PH under varying nitrogen conditions, using 21,201 SNP markers from the Illumina Wheat 90K SNP array. A total of 191 wheat varieties from Yellow and Huai Valley regions of China, as well as other global regions, were analyzed across two growing seasons under four nitrogen treatments, namely N0 (0 kg/ha), N150 (150 kg/ha), N210 (210 kg/ha), and N270 (270 kg/ha). GWAS results showed that 30 genetic markers were associated with PH, explaining phenotypic variance from 5.92% to 13.69%. Additionally, nine significant loci were associated with the NEI. Notably, markers on chromosomes 1A and 6B were linked to both PH and the NEI, which were insensitive to low- and high-nitrogen fertilizers. In addition, the PH of the three cultivars (Zhoumai16, Zhoumai13, and Bima1) showed little variation in four nitrogen fertilizer levels. This study identified key genetic markers associated with wheat PH and the NEI, providing insights for optimizing nitrogen use in wheat breeding.

Details

Title: Genome-Wide Association Studies for Wheat Height Under Different Nitrogen Conditions
Authors/Creators: Tingzhi Yang - Qingdao Agricultural University
Wenjiao Zhang - Qingdao Agricultural University
Yutao Cui - Qingdao Agricultural University
Yalin Wang - Qingdao Agricultural University
Huimin Qin - Qingdao Agricultural University
Xinru Lv - Qingdao Agricultural University
Xiaohan Xie - Qingdao Agricultural University
Fulin Yang - Qingdao Agricultural University
Kangzhen Ren
Jinlan Ni
Xuehuan Dai - Qingdao Agricultural University
Jianbin Zeng - Qingdao Agricultural University
Wenxing Liu - Qingdao Agricultural University
Wujun Ma - Murdoch University, Centre for Crop and Food Innovation
Hongsheng Zhang - Qingdao Agricultural University
Dengan Xu - Qingdao Agricultural University
Publication Details: Agriculture (Basel), Vol.14(11), 1998
Publisher: MDPI AG
Number of pages: 15
Grant note: Shandong Agricultural Seeds Engineering ProjectNational Natural Science Foundation of China: U22A20457 Shandong Provincial Natural Science Foundation: ZR202103020229
This work was supported by the Shandong Agricultural Seeds Engineering Project (2022LZGC005), the National Natural Science Foundation of China (32101733), the Joint Funds of the National Natural Science Foundation of China (no. U22A20457), and the Shandong Provincial Natural Science Foundation (ZR202103020229).
Identifiers: 991005720267907891
Murdoch Affiliation: School of Agricultural Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.96 QTL
Web Of Science research areas: Agronomy
ESI research areas: Agricultural Sciences