Identification and Functional Verification of Cold Tolerance Genes in Spring Maize Seedlings Based on a Genome-Wide Association Study and Quantitative Trait Locus Mapping

Jin, Yukun; Zhang, Zhongren; Xi, Yongjing; Zhou, Yang; Zhang, Xiao; Guan, Shuyan; Qu, Junle; Wang, Piwu; Zhao, Rengui

doi:10.3389/fpls.2021.776972

Cited by 10 publications

(5 citation statements)

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“…Therefore, chilling susceptibility in maize crop is one of the major concerns for optimum yield, which is drastically reduced when the plant is subjected to early-stage cold stress [6,7]. Although much work has been done to understand the biological mechanisms behind cold tolerance [8][9][10], there is a lack of studies addressing the metabolic responses resulting in increased/decreased tolerance levels in maize.…”

Section: Introductionmentioning

confidence: 99%

Metabolic Insight into Cold Stress Response in Two Contrasting Maize Lines

Zhang

Cao

et al. 2022

Life

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Maize (Zea mays L.) is sensitive to a minor decrease in temperature at early growth stages, resulting in deteriorated growth at later stages. Although there are significant variations in maize germplasm in response to cold stress, the metabolic responses as stress tolerance mechanisms are largely unknown. Therefore, this study aimed at providing insight into the metabolic responses under cold stress at the early growth stages of maize. Two inbred lines, tolerant (B144) and susceptible (Q319), were subjected to cold stress at the seedling stage, and their corresponding metabolic profiles were explored. The study identified differentially accumulated metabolites in both cultivars in response to induced cold stress with nine core conserved cold-responsive metabolites. Guanosine 3′,5′-cyclic monophosphate was detected as a potential biomarker metabolite to differentiate cold tolerant and sensitive maize genotypes. Furthermore, Quercetin-3-O-(2″′-p-coumaroyl)sophoroside-7-O-glucoside, Phloretin, Phloretin-2′-O-glucoside, Naringenin-7-O-Rutinoside, L-Lysine, L-phenylalanine, L-Glutamine, Sinapyl alcohol, and Feruloyltartaric acid were regulated explicitly in B144 and could be important cold-tolerance metabolites. These results increase our understanding of cold-mediated metabolic responses in maize that can be further utilized to enhance cold tolerance in this significant crop.

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Section: Introductionmentioning

confidence: 99%

Metabolic Insight into Cold Stress Response in Two Contrasting Maize Lines

Zhang

Cao

et al. 2022

Life

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“…Many previous studies have reported that low-temperature stress during critical growth stages in major cereals significantly reduces the photosynthetic rate of plants, causing accumulation of carbohydrates which leads toward altered hormonal contents and enzyme activities ( Wang et al, 2017 ; Liu et al, 2019 ; Yan et al, 2022 ). For optimized plant metabolic and energy transformation processes, photosynthesis is the essential source, however, it is greatly sensitive to abiotic stresses ( Shah et al, 2020b ), such as drought and high- and low-temperature stresses ( Jin et al, 2021 ; Zhang et al, 2022 ). Spring low-temperature stress and other abiotic stress of such heavy metals impose oxidative damages ( Ahmad et al, 2021a ) and majorly impact the growth and development processes of plants by affecting important morphological and physiological processes, and then dry-matter accumulation and distribution, which subjects toward reduction in crop production, quality, and ultimately food security ( Nurhasanah Ritonga and Chen, 2020 ; Aazami et al, 2021 ; Ahmad et al, 2021b ).…”

Section: General Background and Climate Change Statusmentioning

confidence: 99%

Uncovering the Research Gaps to Alleviate the Negative Impacts of Climate Change on Food Security: A Review

Farooq

Uzair²,

Raza

et al. 2022

Front. Plant Sci.

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Climatic variability has been acquiring an extensive consideration due to its widespread ability to impact food production and livelihoods. Climate change has the potential to intersperse global approaches in alleviating hunger and undernutrition. It is hypothesized that climate shifts bring substantial negative impacts on food production systems, thereby intimidating food security. Vast developments have been made addressing the global climate change, undernourishment, and hunger for the last few decades, partly due to the increase in food productivity through augmented agricultural managements. However, the growing population has increased the demand for food, putting pressure on food systems. Moreover, the potential climate change impacts are still unclear more obviously at the regional scales. Climate change is expected to boost food insecurity challenges in areas already vulnerable to climate change. Human-induced climate change is expected to impact food quality, quantity, and potentiality to dispense it equitably. Global capabilities to ascertain the food security and nutritional reasonableness facing expeditious shifts in biophysical conditions are likely to be the main factors determining the level of global disease incidence. It can be apprehended that all food security components (mainly food access and utilization) likely be under indirect effect via pledged impacts on ménage, incomes, and damages to health. The corroboration supports the dire need for huge focused investments in mitigation and adaptation measures to have sustainable, climate-smart, eco-friendly, and climate stress resilient food production systems. In this paper, we discussed the foremost pathways of how climate change impacts our food production systems as well as the social, and economic factors that in the mastery of unbiased food distribution. Likewise, we analyze the research gaps and biases about climate change and food security. Climate change is often responsible for food insecurity issues, not focusing on the fact that food production systems have magnified the climate change process. Provided the critical threats to food security, the focus needs to be shifted to an implementation oriented-agenda to potentially cope with current challenges. Therefore, this review seeks to have a more unprejudiced view and thus interpret the fusion association between climate change and food security by imperatively scrutinizing all factors.

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“…These authors further verified the two QTLs using transcriptome data and identified 13 candidate genes likely to be involved in controlling the cold responses. Recently, Jin et al ( 2021 ) studied cold responses in maize using a joint analyses that combined QTL and GWAS. They first performed QTL mapping for POD activity using an F 2:3 population (210 lines) derived from cold-tolerant (W10) and cold-sensitive (W72) lines, and detected 12 QTLs significantly associated with POD activity and cold tolerance.…”

Section: Genetic and Genomic Approaches To Dissect Cold Tolerance In ...mentioning

confidence: 99%

“…In recent years, joint analysis using advanced populations or genomic tools has become increasingly popular to narrow down the search for candidate genes. Such an approach was recently used successfully to identify the major-effect cold regulating gene Zm00001d002729 (Jin et al, 2021 ), suggesting that it can be more widely applied in other studies.…”

Section: Genetic and Genomic Approaches To Dissect Cold Tolerance In ...mentioning

confidence: 99%

Recent Advances in the Analysis of Cold Tolerance in Maize

Zhou

Imran²,

Long

et al. 2022

Front. Plant Sci.

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Maize (Zea mays L.) is an annual grass that originated in tropical and subtropical regions of the New World. Maize is highly sensitive to cold stress during seed gemination and the seedling phase, which can lead to reductions in plant vigor and grain production. There are large differences in the morphological and physiological changes caused by cold stress among maize varieties. In general, cold tolerant varieties have a stronger ability to maintain such changes in traits related to seed germination, root phenotypes, and shoot photosynthesis. These morphological and physiological characteristics have been widely used to evaluate the cold tolerance of maize varieties in genetic analyses. In recent years, considerable progress has been made in elucidating the mechanisms of maize in response to cold tolerance. Several QTL, GWAS, and transcriptomic analyses have been conducted on various maize genotypes and populations that show large variations in cold tolerance, resulting in the discovery of hundreds of candidate cold regulation genes. Nevertheless, only a few candidate genes have been functionally characterized. In the present review, we summarize recent progress in molecular, physiological, genetic, and genomic analyses of cold tolerance in maize. We address the advantages of joint analyses that combine multiple genetic and genomic approaches to improve the accuracy of identifying cold regulated genes that can be further used in molecular breeding. We also discuss the involvement of long-distance signaling in plant cold tolerance. These novel insights will provide a better mechanistic understanding of cold tolerance in maize.

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Identification and Functional Verification of Cold Tolerance Genes in Spring Maize Seedlings Based on a Genome-Wide Association Study and Quantitative Trait Locus Mapping

Cited by 10 publications

References 68 publications

Metabolic Insight into Cold Stress Response in Two Contrasting Maize Lines

Metabolic Insight into Cold Stress Response in Two Contrasting Maize Lines

Uncovering the Research Gaps to Alleviate the Negative Impacts of Climate Change on Food Security: A Review

Recent Advances in the Analysis of Cold Tolerance in Maize

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