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Volume 14
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10.3390/plants14040504
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Article

Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome

by
Danfeng Wang
1,3,†,
Jinjin Xie
2,†,
Jingwen Wang
1,4,
Mengdi Mu
1,4,
Haifeng Xiong
4,5,
Fengshuo Ma
5,6,
Peizhen Li
5,6,
Menghan Jia
5,6,
Shuangjing Li
5,6,
Jiaxin Li
5,6,
Mingyue Zhu
5,6,
Peiwen Li
5,
Haiyan Guan
3,
Yi Zhang
1,3,* and
Hao Li
2,*
1
Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University/Henan Key Laboratory of Crop Molecular Breeding & Bioreactor, Zhoukou 466001, China
2
State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng 475000, China
3
Henan International Joint Laboratory of Translational Biology, Zhoukou 466001, China
4
Henan Plant Gene and Molecular Breeding Engineering Research Center, Zhoukou 466001, China
5
Henan Province Plant Genetics and Molecular Breeding Innovation Team, Zhoukou 466001, China
6
Henan Crop Molecular Design Breeding and Cultivation Engineering Technology Research Center, Zhoukou 466001, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this study.
Plants 2025, 14(4), 504; https://doi.org/10.3390/plants14040504
Submission received: 31 December 2024 / Revised: 4 February 2025 / Accepted: 5 February 2025 / Published: 7 February 2025
(This article belongs to the Special Issue Seed Dormancy in Crops)
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Abstract

The TaVP1-B gene, located on the 3B chromosome of wheat, is a homolog of the Viviparous-1 (VP-1) gene of maize and was reported to confer resistance to pre-harvest sprouting (PHS) in wheat. In this study, the structure of the TaVP1-B gene was analyzed using the wheat pan-genome consisting of 20 released cultivars (19 wheat are from China), and 3 single nucleotide polymorphisms (SNPs), which were identified at the 496 bp, 524 bp, and 1548 bp of the TaVP1-B CDS region, respectively. Haplotypes analysis showed that these SNPs were in complete linkage disequilibrium and that only two haplotypes designated as hap1 (TGG) and hap2 (GAA) were present. Association analysis between TaVP1-B haplotypes and PHS resistance of the 20 wheat cultivars in four experiment environments revealed that the average PHS resistance of accessions with hap1 was significantly better than that of accessions with hap2, which infers the effects of TaVP1-B on wheat PHS resistance. To further investigate the impacts of alleles at the TaVP1-B locus on PHS resistance, the SNP at 1548 bp of the TaVP1-B CDS region was converted to a KASP marker, which was used for genotyping 304 Chinese wheat cultivars, whose PHS resistance was evaluated in three environments. The average sprouting rates (SRs) of 135 wheat cultivars with the hap1 were significantly lower than the 169 cultivars with the hap2, validating the impacts of TaVP1-B on PHS resistance in Chinese wheat. The present study provided the breeding-friendly marker for functional variants in the TaVP1-B gene, which can be used for genetic improvement of PHS resistance in wheat.
Keywords: wheat; pre-harvest sprouting; TaVP1-B; haplotype; KASP wheat; pre-harvest sprouting; TaVP1-B; haplotype; KASP

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MDPI and ACS Style

Wang, D.; Xie, J.; Wang, J.; Mu, M.; Xiong, H.; Ma, F.; Li, P.; Jia, M.; Li, S.; Li, J.; et al. Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome. Plants 2025, 14, 504. https://doi.org/10.3390/plants14040504

AMA Style

Wang D, Xie J, Wang J, Mu M, Xiong H, Ma F, Li P, Jia M, Li S, Li J, et al. Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome. Plants. 2025; 14(4):504. https://doi.org/10.3390/plants14040504

Chicago/Turabian Style

Wang, Danfeng, Jinjin Xie, Jingwen Wang, Mengdi Mu, Haifeng Xiong, Fengshuo Ma, Peizhen Li, Menghan Jia, Shuangjing Li, Jiaxin Li, and et al. 2025. "Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome" Plants 14, no. 4: 504. https://doi.org/10.3390/plants14040504

APA Style

Wang, D., Xie, J., Wang, J., Mu, M., Xiong, H., Ma, F., Li, P., Jia, M., Li, S., Li, J., Zhu, M., Li, P., Guan, H., Zhang, Y., & Li, H. (2025). Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome. Plants, 14(4), 504. https://doi.org/10.3390/plants14040504

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