Review
Plant Sciences
Xuemei Zhou, Imran Muhammad, Hai Lan, Chao Xia
Summary: Maize is a crucial crop, and cold tolerance plays a vital role in its yield and growth. Significant progress has been made in studying the cold tolerance of maize, but there are still many unresolved questions, especially regarding the identification and functional characterization of cold regulated genes. This research has important implications for improving cold tolerance through molecular breeding in maize.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Zhuoyang Li, Diyi Fu, Xi Wang, Rong Zeng, Xuan Zhang, Jinge Tian, Shuaisong Zhang, Xiaohong Yang, Feng Tian, Jinsheng Lai, Yiting Shi, Shuhua Yang
Summary: This study identifies a negative regulator, bZIP68, that negatively regulates cold tolerance in maize and reveals its differential expression in response to cold stress between maize and its wild ancestor teosinte, which is attributed to natural variation in the bZIP68 promoter.
Article
Plant Sciences
Cindy M. S. Laine, Hamada AbdElgawad, Gerrit T. S. Beemster
Summary: Maize, a cold-sensitive crop, requires cold tolerance for extending the growing season in temperate climates. A meta-analysis was conducted to investigate the effect of cold stress on maize leaf using data from literature. Response curves to temperature and exposure durations were constructed for various parameters, and the importance of these parameters for cold tolerance was evaluated using cold tolerant and cold sensitive lines. The results showed interacting effects of temperature and exposure durations on different response parameters, with electrolyte leakage being a reliable indicator for cold tolerance studies.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Yin Wen, Qing Ye, Cristian Roman-Palacios, Hui Liu, Guilin Wu
Summary: Understanding how plants respond to thermal stress is crucial for predicting plant responses and community dynamics in natural ecosystems under climate change scenarios. This study compared the evolutionary rates of physiological tolerance to extreme temperatures with the corresponding rates of climatic niche in three major vascular plant groups. The results showed that physiological cold tolerance evolves faster than heat tolerance in all three groups. The coldest climatic-niche temperatures also evolve faster than the warmest climatic-niche temperatures. Additionally, the evolutionary rates of physiological cold tolerance were faster than the rates of change in climatic niches.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Q. Yi, L. alvarez-Iglesias, R. A. Malvar, M. C. Romay, Pedro Revilla
Summary: A large association panel of 836 maize inbreds revealed a broader genetic diversity of cold tolerance, with predominantly favorable QTL having small effects that are specific to different environments, highlighting the potential of genomic selection in maize breeding for cold tolerance.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Plant Sciences
Huizhen Dong, Qiming Chen, Yuqin Dai, Wenjie Hu, Shaoling Zhang, Xiaosan Huang
Summary: A comprehensive analysis identified the bHLH genes in Chinese white pear, revealing their important roles in response to abiotic stresses, with PbrbHLH195 playing a key role in producing ROS under cold stress, indicating the essential function of PbrbHLH family members in stress tolerance of pear.
Article
Plant Sciences
Ran Tian, Sidi Xie, Junjie Zhang, Hanmei Liu, Yangping Li, Yufeng Hu, Yubi Huang, Yinghong Liu
Summary: The MOR signaling network plays a crucial role in modulating cold tolerance in maize by regulating the expression of cold tolerance genes. The network exhibits significant co-expression with the pivotal gene COLD1 and is involved in the perception and transmission of cold stress signals.
Article
Plant Sciences
Qianqian Guo, Xia Li, Li Niu, Paula E. Jameson, Wenbin Zhou
Summary: The study emphasizes the multifaceted response of plants to drought and cold stress, highlighting physiological and genetic changes that occur during acclimation to these stresses; plants experience a decline in photosynthetic capacity under both drought and cold stress, but can recover from the stress, with internal ABA playing a key role in plant acclimation to cold.
Article
Plant Sciences
Yunchen Luo, Yongyan Wang, Xin Li, Xiaohan Yang, Huiru Bai, Xiaoqin Liao, Xuanling Luo, Fan Zhang, Lei Zhang, Qinglin Liu
Summary: Cold stress affects the growth and development of plants, and this study reveals the important regulatory roles of MYB transcription factors and histone H3K4me3 transferase ATXs in plant resistance to low temperatures. The study demonstrates that DgMYB and DgATX interact with each other and regulate H3K4me3 levels at DgPOD, leading to increased cold tolerance in chrysanthemums.
Article
Entomology
Zhenqi Tian, Guangmei Chen, Yan Zhang, Chao Ma, Zhenya Tian, Xuyuan Gao, Hongsong Chen, Jianying Guo, Zhongshi Zhou
Summary: In this study, we investigated the genetic basis underlying the rapid cold tolerance adaptation in Ophraella communa, a biological control agent of the invasive plant Ambrosia artemisiifolia. We found that high-latitude insects expressed potential genes related to cryoprotectants such as trehalose and proline, which could facilitate their adaptation to cold environments.
JOURNAL OF PEST SCIENCE
(2022)
Article
Agronomy
Peng Jiao, Shiyou Jin, Nannan Chen, Chunlai Wang, Siyan Liu, Jing Qu, Shuyan Guan, Yiyong Ma
Summary: This study found that S-adenosylmethionine decarboxylase (SAMDC) can improve the cold tolerance of maize. By introducing the SAMDC gene into an excellent maize inbred line, the contents of polyamines, proline, malondialdehyde, antioxidant enzymes and ascorbate peroxidases in the leaves of the transgenic maize plants significantly increased, leading to a significant improvement in yield traits of maize.
GM CROPS & FOOD-BIOTECHNOLOGY IN AGRICULTURE AND THE FOOD CHAIN
(2022)
Article
Multidisciplinary Sciences
Kumari Shikha, Vinayan Madhumal Thayil, J. P. Shahi, P. H. Zaidi, Kaliyamoorthy Seetharam, Sudha K. Nair, Raju Singh, Garg Tosh, Ashok Singamsetti, Saurabh Singh, B. Sinha
Summary: Maize is being grown in non-traditional and non-conventional seasons due to higher demand and economic returns. The study identified genomic loci associated with grain yield and other agronomic traits under cold stress in tropically adapted maize lines, providing valuable insights for breeding programs. Additionally, four cold-resilient maize lines were identified for further breeding.
SCIENTIFIC REPORTS
(2023)
Article
Biotechnology & Applied Microbiology
Meijie Luo, Yunxia Zhang, Jingna Li, Panpan Zhang, Kuan Chen, Wei Song, Xiaqing Wang, Jinxiao Yang, Xiaoduo Lu, Baishan Lu, Yanxin Zhao, Jiuran Zhao
Summary: A genome-wide association study on 348 maize inbred lines under salt stress conditions identified 149 significant SNPs and 104 QTLs associated with salt tolerance traits, with 13 candidate genes predicted. CRISPR/Cas9 technology targeting three sites showed 70% editing efficiency in maize, confirming the salt tolerance function of candidate genes ZmCLCg and ZmPMP3. Chloride content analysis revealed ZmCLCg's role in regulating chloride transport under sodium chloride stress. These findings offer insights into genetic variations in salt tolerance and provide potential loci for generating salt-tolerant maize lines.
PLANT BIOTECHNOLOGY JOURNAL
(2021)
Article
Plant Sciences
Zhifu Guo, Haotian Wang, Jialu Yao, Yishan Cheng, Wenzhong Zhang, Zhengjin Xu, Maomao Li, Jing Huang, Minghui Zhao
Summary: In this study, a population of BRILs derived from a cross between a wild rice (DXWR) and a super rice (SN265) was constructed to assess cold tolerance in rice. The LTG, SR, PH, and FLL were used as indices for this assessment. A high-resolution SNP genetic map was constructed using GBS technique. A total of 73 QTLs were detected, with 30 QTLs coinciding under both cold stress and BR-combined cold treatment. 14 candidate genes related to cold tolerance or the BR signaling pathway were located, and the transcript levels of 10 candidate genes were identified under cold stress and BR-combined cold treatment by qRT-PCR.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Yukun Jin, Zhongren Zhang, Yongjing Xi, Zhou Yang, Zhifeng Xiao, Shuyan Guan, Jing Qu, Piwu Wang, Rengui Zhao
Summary: This study identified key genes associated with cold tolerance in maize and verified their impact on cold stress in maize. These findings provide important clues for improving maize resilience and increasing yield.
FRONTIERS IN PLANT SCIENCE
(2021)