Article
Plant Sciences
Gang Guo, Shuhao Xu, Hao Chen, Yuanfeng Hao, Hailiang Mao
Summary: Pre-harvest sprouting (PHS) reduces wheat yield and quality, and is influenced by seed dormancy. This study identified seven QTLs for seed dormancy and two QTLs for grain color using a DH population. Some QTLs for seed dormancy were stably detected across multiple environments, and a novel locus, Qdor.hzau-3D.2, was discovered. This study provides valuable information for marker-assisted breeding of PHS-resistant wheat.
Article
Plant Sciences
Ehsan Rabieyan, Mohammad Reza Bihamta, Mohsen Esmaeilzadeh Moghaddam, Valiollah Mohammadi, Hadi Alipour
Summary: The study conducted a genome-wide association study on pre-harvest sprouting tolerance in wheat in Iran, revealing genomic regions and markers with potential breeding value. Gene ontology analysis identified pleiotropic marker pairs on 1A that control seed color, alpha-amylase activity, and pre-harvest sprouting.
Article
Plant Sciences
Hao Jiang, Wei Gao, Bing-li Jiang, Xue Liu, Ya-ting Jiang, Li-tian Zhang, Yue Zhang, Sheng-nan Yan, Jia-Jia Cao, Jie Lu, Chuan-xi Ma, Cheng Chang, Hai-ping Zhang
Summary: Under high temperature conditions, seed dormancy decreases and pre-harvest sprouting damage occurs during wheat harvest. The molecular mechanism behind this high temperature-mediated seed dormancy reduction is still unknown.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Mingting Zhang, Guibin Cui, Xinchen Bai, Zi Ye, Shumeng Zhang, Kunliang Xie, Fengli Sun, Chao Zhang, Yajun Xi
Summary: Preharvest sprouting in grain is a common issue affecting yield and quality, with MingXian169 wheat showing high resistance to this. Transcriptome sequencing revealed the involvement of long noncoding RNA, miRNA, and DNA methylation in regulating critical pathways during sprouting. Changes in phytohormone content and enzyme activities suggest their role in increasing preharvest sprouting resistance in MingXian169.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Plant Sciences
Yi Chen, Zhipan Xiang, Min Liu, Siyao Wang, Lin Zhang, Dan Cai, Yuan Huang, Dandan Mao, Jun Fu, Liangbi Chen
Summary: In this study, a gene called OsNCED3 was found to regulate seed germination and grain development in rice. The disruption of OsNCED3 led to decreased ABA levels and increased GA levels, resulting in poor seed dormancy and preharvest sprouting in rice. On the other hand, overexpression of OsNCED3 enhanced PHS resistance and improved grain germination. These findings provide a potential target gene for improving PHS resistance and grain development in rice.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Qin Zhang, Jenifer Pritchard, Jos Mieog, Keren Byrne, Michelle L. Colgrave, Ji-Rui Wang, Jean-Philippe F. Ral
Summary: The hydrolysis of starch is a complex process that requires multiple hydrolytic enzymes, including alpha-amylases. Overexpression of TaAmy1 in wheat resulted in significantly increased alpha-amylase activity in mature grains, but had limited impact on starch damage and early germination process.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Jun Wei, Xing-ting Wu, Xiao-ying Li, Wim J. J. Soppe, Hong Cao, Yong-xiu Liu
Summary: The study found that Taetr1-1 can enhance seed dormancy and ethylene insensitivity in wheat, indicating a conserved role of ETR1 in regulating seed dormancy. This research contributes to our understanding of the molecular basis for pre-harvest sprouting resistance in wheat.
Article
Biochemistry & Molecular Biology
Xuening Wei, Yuyan Li, Xiuliang Zhu, Xin Liu, Xingguo Ye, Miaoping Zhou, Zengyan Zhang
Summary: In this study, we found that the GATA transcription factor TaGATA1 acts as a positive regulator of seed dormancy in wheat by regulating the expression of TaABI5. Overexpression of TaGATA1 significantly enhances seed dormancy and resistance to preharvest sprouting. TaGATA1 functions through the ABA signaling pathway and physically interacts with the demethylase TaELF6-A1, leading to epigenetic reprogramming at the TaABI5 promoter. This discovery provides valuable insights into the regulation of seed dormancy and suggests TaGATA1 as a potential candidate gene for improving preharvest sprouting resistance.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2023)
Article
Plant Sciences
Justin Michael Vetch, Brandon J. Tillett, Philip Bruckner, John M. Martin, Karol Marlowe, Marcus Alan Hooker, Deven Robert See, Michael J. Giroux
Summary: The occurrence of preharvest sprouting negatively impacts wheat production and end use. Investigating the genetic control of PHS resistance can help enhance seed dormancy. This study found that the TaMFT-A and B2 homoeologs were associated with PHS variation, and the TaMFT-3A and TaMFT-3B2 alleles explained 14% of observed PHS variation.
Article
Horticulture
Chengcheng Cai, Shifeng Liu, Jie Liu, He Wen, Luopin Li, Qiang Wang, Liqin Li, Xiyao Wang
Summary: Four StSPS family members were identified through a comparison of the potato genome database with homologous proteins. The physicochemical properties, subcellular localization, sequence structure, conserved motifs, and phylogenetics of StSPS were analyzed using bioinformatics. The expression levels of StSPS in different potato tissues were measured, and the correlation between multiple varieties with different dormancy periods and the expression of StSPS1 was determined. The primary gene StSPS1 that might regulate seed potato vigor was identified. This study provides a theoretical and experimental foundation for further investigation of the regulatory function of StSPS1 in alterations in seed potato vigor.
Article
Agronomy
Thobeka Philile Khumalo, Tsepiso Hlongoane, Annelie Barnard, Toi John Tsilo
Summary: The study evaluated wheat populations in South Africa to identify genotypes with increased preharvest sprouting tolerance. The findings identified specific loci associated with tolerance and recommended genotypes for further breeding efforts. These results will contribute to the development of PHS-tolerant cultivars in South Africa.
Article
Plant Sciences
Lingli Li, Yingjun Zhang, Yong Zhang, Ming Li, Dengan Xu, Xiuling Tian, Jie Song, Xumei Luo, Lina Xie, Desen Wang, Zhonghu He, Xianchun Xia, Yan Zhang, Shuanghe Cao
Summary: This study identified four QTL associated with PHS resistance in wheat, providing valuable genetic resources and breeding tools. Development of KASP markers and validation of their effectiveness in a test panel of cultivars offer new approaches for marker-assisted selection in wheat breeding.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Agronomy
Min Wu, Shan Xu, Yuexin Fei, Yujie Cao, Hongkai Wu
Summary: Preharvest sprouting (PHS) is a significant issue in rice and other crops, and this study reveals the effectiveness of the Rc gene in conferring resistance to PHS without affecting subsequent agricultural cycles. The Rc gene exhibits a dominant maternal effect, providing an advantage to hybrid rice over inbred rice. Additionally, the Rc gene does not compromise milled rice quality and even enhances antioxidative capacity.
Article
Agronomy
Wenqiang Chen, Wei Wang, Yusong Lyu, Yawen Wu, Pingliang Huang, Shikai Hu, Xiangjin Wei, Guiai Jiao, Zhonghua Sheng, Shaoqing Tang, Gaoneng Shao, Ju Luo
Summary: Pre-harvest sprouting (PHS) is a detrimental trait in cereal production, and the regulatory mechanism involves the OsVP1 and Sdr4 genes. OsVP1 mutant showed increased PHS compared to the wild type, and activated the expression of Sdr4 by binding to its promoter. Both OsVP1 and Sdr4 mutants were insensitive to exogenous ABA and utilized the ABA signaling pathway in regulating seed dormancy, shedding light on strategies to prevent PHS in rice.
Article
Chemistry, Multidisciplinary
Huilan Zhang, Ruyue Wei, Yongjiu Wang, Fangrong Shao, Minghui Cao, Wenjie Kan, Jian Liu, Minghao Li, Caiguo Tang, Lifang Wu
Summary: A new type of nanonetwork material OAA has been found to effectively prevent preharvest sprouting in wheat by reducing moisture absorption, leading to lower occurrence of PHS, and improved yield and quality of wheat.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
