The maize ATP-binding cassette (ABC) transporter ZmMRPA6 confers cold and salt stress tolerance in plants

Yang, Wei; Liu, Xiao; Yu, Shaowei; Liu, Jisheng; Jiang, Lijun; Lu, Xiaoduo; Liu, Yinggao; Zhang, Jiedao; Li, Xiang; Zhang, Shuxin

doi:10.1007/s00299-023-03094-7

Cited by 4 publications

(4 citation statements)

References 53 publications

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“…Plant growth and development are also greatly impacted by cold stress, and low temperatures can affect plant respiration, cell membrane fluidity, and cytoskeleton integrity and can ultimately lead to plant death [51]. Signaling pathways involved in drought, salt, and cold stress can be antagonistic or synergistic [52,53].…”

Section: Discussionmentioning

confidence: 99%

Overexpression of NB-LRR Gene AtRPM1(D505V) Improved Drought and Salt Resistance and Decreased Cold Tolerance in Transgenic Rice

Li,

Zhou,

Liu

et al. 2024

Agronomy

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Abiotic stimuli severely restrict the growth and development of plants, resulting in massive losses in the quality and yield of crops. Exploring genes that can improve crop tolerance to abiotic stress is important. In a previous study, we found that overexpression of the Arabidopsis nucleotide-binding domain leucine-rich repeat (NB-LRR) gene AtRPM1(D505V) increased disease resistance in rice. In this research, we found that AtRPM1(D505V) transgenic plants were more sensitive to abscisic acid (ABA) than wild type (WT) plants. Abiotic-stress resistance in AtRPM1(D505V) transgenic plants was investigated. We found that AtRPM1(D505V) transgenic plants exhibited improved resistance to drought and salt stress; the phonotype and survival rates of transgenic rice were better than WT plants. The expression of stress responsive genes including OsDREB2A, OsDREB2B, OsRD22, and OsRD29A were significantly upregulated in AtRPM1(D505V) overexpressed plants than in WT plants. Moreover, the activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) were significantly increased in AtRPM1(D505V) overexpressed plants than in WT plants under drought and salt stress. Under cold stress, the expression of stress responsive genes and the activities of antioxidant enzymes in AtRPM1(D505V) transgenic plants were significantly lower than in WT plants. Our research demonstrated that AtRPM1(D505V) confers drought and salt resistance to transgenic rice. Therefore, AtRPM1(D505V) could act as a potential candidate gene to cultivate drought- and salt-tolerant plants.

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Section: Discussionmentioning

confidence: 99%

Overexpression of NB-LRR Gene AtRPM1(D505V) Improved Drought and Salt Resistance and Decreased Cold Tolerance in Transgenic Rice

Li,

Zhou,

Liu

et al. 2024

Agronomy

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“…Seed germination is a critical developmental stage for plants to start a new phase of life. Under salt stress, seed germination in most crop species is compromised, manifested primarily by lower germination rates and longer germination time ( Shi et al., 2017 ; Hasseb et al., 2022 ; Yang et al., 2023 ). Increased osmotic pressures induced by salt stress may affect water absorption, starch mobilization and catabolism of storage products during seed germination ( Xu et al., 2017 ; Yan et al., 2022 ; Xiong et al., 2024 ).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association studies identified OsTMF as a gene regulating rice seed germination under salt stress

Liu,

Ma,

Zhao

et al. 2024

Front. Plant Sci.

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IntroductionSalt tolerance during seed germination is an important trait for direct seeding and low-cost rice production. Nevertheless, it is still not clear how seed germination under salt stress is regulated genetically.MethodsIn this study, genome-wide association studies (GWAS) were performed to decipher the genetic basis of seed germination under salt stress using 541 rice varieties collected worldwide.Results and discussionThree quantitative trait loci (QTLs) were identified including qGRG3-1 on chromosome 3, qGRG3-2 on chromosome 5, and qGRG4 on chromosome 4. Assessment of candidate genes in these loci for their responses to salt stress identified a TATA modulatory factor (OsTMF) in qGRG3-2. The expression of OsTMF was up-regulated in both roots and shoots after exposure to salt stress, and OsTMF knockout mutants exhibited delayed seed germination under salt stress. Haplotype analysis showed that rice varieties carrying OsTMF-Hap2 displayed elevated salt tolerance during seed germination. These results provide important knowledge and resources to improve rice seed germination under salt stress in the future.

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“…Considering population structure is the most effective approach to reduce these false associations. [19][20][21][22][23][24][25][26]. For instance, a GWAS analysis was conducted on resistance to common rust in a population of 274 temperate maize inbred lines.…”

Section: Introductionmentioning

confidence: 99%

Dissection of Common Rust Resistance in Tropical Maize Multiparent Populations through GWAS and Linkage Studies

Li,

Jiang,

et al. 2024

Preprint

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Common rust (CR), caused by Puccina sorghi, is one of the major foliar diseases in maize, leading to quality deterioration and yield losses. To dissect the genetic architecture of CR resistance in maize, this study utilized the susceptible temperate inbred line Ye107 as the male parent crossed with three resistant tropical maize inbred lines (CML312, D39, and Y32) to generate 627 F7 recombinant inbred lines (RILs), aiming to identify maize disease-resistant loci and candidate genes for common rust. Phenotypic data exhibited good segregation between resistance and susceptibility, with varying degrees of resistance observed across different subpopulations. Significant genotype effects and genotype × environment interactions were noted with heritability ranging from 85.7% to 92.2%. Linkage analysis and genome-wide association analysis across three environments identified 20 QTLs and 62 significant SNPs. Among them, seven major QTLs explained 66% of the phenotypic variance. Comparison with six SNPs repeatedly identified across different environments revealed overlap between qRUST3-3 and Snp-203,116,453, and Snp-204,202,469. Haplotype analysis indicated two significantly different haplotypes for CR resistance for both of these SNPs. Based on LD decay plots, three co-located candidate genes, namely Zm00001d043536, Zm00001d043566, and Zm00001d043569, were identified within 20 kb up-stream and downstream of these two SNPs. Zm00001d043536 regulates hormone regulation, Zm00001d043566 controls stomatal opening and closure, related to trichome, and Zm00001d043569 is associated with plant disease immune responses. Additionally, we performed candidate gene screening for five additional SNPs repeatedly detected across different environments, resulting in the identification of five candidate genes. These findings contribute to the development of genetic resources for common rust resistance in maize breeding programs.

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The maize ATP-binding cassette (ABC) transporter ZmMRPA6 confers cold and salt stress tolerance in plants

Cited by 4 publications

References 53 publications

Overexpression of NB-LRR Gene AtRPM1(D505V) Improved Drought and Salt Resistance and Decreased Cold Tolerance in Transgenic Rice

Overexpression of NB-LRR Gene AtRPM1(D505V) Improved Drought and Salt Resistance and Decreased Cold Tolerance in Transgenic Rice

Genome-wide association studies identified OsTMF as a gene regulating rice seed germination under salt stress

Dissection of Common Rust Resistance in Tropical Maize Multiparent Populations through GWAS and Linkage Studies

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