AtTLP2, a Tubby-like protein, plays intricate roles in abiotic stress signalling

Jain, Nitin; Khurana, Paramjit; Khurana, Jitendra P.

doi:10.1007/s00299-022-02953-z

Cited by 4 publications

(4 citation statements)

References 60 publications

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“…It is speculated that CSS0026218 related to the synthesis of GCG may be involved in the immune and stress responses of plants, which is consistent with previous studies on the involvement of catechins in stress and immune responses of tea plants [49,50]. In Arabidopsis, tubby-like protein is involved in abiotic stress signal transduction dependent on ABA [51,52], which is consistent with the signal transduction pathway reported in tea plant that GC, GCG, and ABA are involved in abiotic or biological stress induction, suggesting that CSS007172 may be involved in regulating this process [53]. Additionally, similar to CSS0026218, in Arabidopsis, a plant protein (DUF247) is associated with a QTL for quantitative disease resistance [54].…”

Section: Dissecting Four Candidate Genes Of Quality-related Traitssupporting

confidence: 87%

Genome-Wide Association Studies of Biluochun Tea Plant Populations in Dongting Mountain and Comprehensive Identification of Candidate Genes Associated with Core Agronomic Traits by Four Analysis Models

Lei,

Li,

et al. 2023

Plants

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The elite germplasm resources are key to the beautiful appearance and pleasant flavor of Biluochun tea. We collected and measured the agronomic traits of 95 tea plants to reveal the trait diversity and breeding value of Biluochun tea plant populations. The results revealed that the agronomic traits of Biluochun tea plant populations were diverse and had high breeding value. Additionally, we resequenced these tea plant populations to reveal genetic diversity, population structure, and selection pressure. The Biluochun tea plant populations contained two groups and were least affected by natural selection based on the results of population structure and selection pressure. More importantly, four non-synonymous single nucleotide polymorphisms (nsSNPs) and candidate genes associated with (−)-gallocatechin gallate (GCG), (−)-gallocatechin (GC), and caffeine (CAF) were detected using at least two GWAS models. The results will promote the development and application of molecular markers and the utilization of elite germplasm from Biluochun populations.

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Section: Dissecting Four Candidate Genes Of Quality-related Traitssupporting

confidence: 87%

Genome-Wide Association Studies of Biluochun Tea Plant Populations in Dongting Mountain and Comprehensive Identification of Candidate Genes Associated with Core Agronomic Traits by Four Analysis Models

Lei,

Li,

et al. 2023

Plants

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“…For example, the expression of a Tubby-like protein (TLP), Zm00001eb157040, was downregulated in Zmlarp6c1::Ds but was upregulated in ZmLARP6c1 -OE. AtTLPs appear to function in multiple physiological and developmental processes in Arabidopsis : e.g., overexpression of AtTLP2 enhances plant growth [ 49 ]; and AtTLP3 together with AtTLP9 modulates ABA- and osmotic stress-mediated seed germination [ 50 ]. Another example is the aquaporin ZmSIP2;1/sbip2a (Zm00001eb015230), which was downregulated in Zmlarp6c1::Ds .…”

Section: Resultsmentioning

confidence: 99%

Genome-wide investigation of the LARP gene family: focus on functional identification and transcriptome profiling of ZmLARP6c1 in maize pollen

Xiang,

Deng,

Zheng

et al. 2024

BMC Plant Biol

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Background The La-related proteins (LARPs) are a superfamily of RNA-binding proteins associated with regulation of gene expression. Evidence points to an important role for post-transcriptional control of gene expression in germinating pollen tubes, which could be aided by RNA-binding proteins. Results In this study, a genome-wide investigation of the LARP proteins in eight plant species was performed. The LARP proteins were classified into three families based on a phylogenetic analysis. The gene structure, conserved motifs, cis-acting elements in the promoter, and gene expression profiles were investigated to provide a comprehensive overview of the evolutionary history and potential functions of ZmLARP genes in maize. Moreover, ZmLARP6c1 was specifically expressed in pollen and ZmLARP6c1 was localized to the nucleus and cytoplasm in maize protoplasts. Overexpression of ZmLARP6c1 enhanced the percentage pollen germination compared with that of wild-type pollen. In addition, transcriptome profiling analysis revealed that differentially expressed genes included PABP homologous genes and genes involved in jasmonic acid and abscisic acid biosynthesis, metabolism, signaling pathways and response in a Zmlarp6c1::Ds mutant and ZmLARP6c1-overexpression line compared with the corresponding wild type. Conclusions The findings provide a basis for further evolutionary and functional analyses, and provide insight into the critical regulatory function of ZmLARP6c1 in maize pollen germination.

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“…In addition, hypersensitivity to ABA was reported in Arabidopsis overexpressing BG757, but the plants showed significantly enhanced osmotic stress tolerance [28]. More interestingly, the attlp2 mutant, although insensitive to ABA, showed completely opposite results in response to drought stress at the seedling stage and at the late growth stage [29]. The expression of some genes is not consistently induced by ABA and drought treatment; therefore, the difference in drought tolerance between S1-0 and S1-50 plants may not be due to the pretreatment with ABA [19,30,31].…”

Section: Discussionmentioning

confidence: 97%

Transcriptome Analysis Reveals the Vital Role of ABA Plays in Drought Tolerance of the ABA-Insensitive Alfalfa (Medicago sativa L.)

Xu,

Liu

et al. 2024

Agronomy

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Drought stress severely affects alfalfa (Medicago sativa L.) growth and production. It is particularly important to analyze the key networks of drought in alfalfa through physiological and molecular levels. However, how to quickly screen drought-tolerant alfalfa germplasm and how to elucidate the molecular pathways of alfalfa responding to drought are less studied. In this study, based on our previous research, we further verified the association between the heritability of ABA sensitivity during seed germination and drought tolerance of plants and identified the key pathways of drought tolerance differences between ABA-sensitivity (S1-0) and -insensitivity (S1-50) plants via RNA-seq and analysis. The results showed that the sensitivity to ABA in alfalfa seeds can be inherited and that plants that are insensitive to ABA during germination show stronger drought tolerance. An analysis of the differentially expressed genes (DEGs) revealed that ABA biosynthesis and signaling, amino acid metabolism, LEA, and wax synthesis-related pathways may be the key pathways that can be used for drought tolerance improvement in alfalfa. DEGs such as NCED, PYR/PYL, and PP2C may contribute to drought tolerance in the S1-50 plant. The study further confirms that screening with ABA at the seed germination stage can select alfalfa lines with good drought tolerance, which provides a new theoretical basis for alfalfa drought tolerance breeding. The expression of the key genes of alfalfa in response to drought stress was also tested.

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AtTLP2, a Tubby-like protein, plays intricate roles in abiotic stress signalling

Cited by 4 publications

References 60 publications

Genome-Wide Association Studies of Biluochun Tea Plant Populations in Dongting Mountain and Comprehensive Identification of Candidate Genes Associated with Core Agronomic Traits by Four Analysis Models

Genome-Wide Association Studies of Biluochun Tea Plant Populations in Dongting Mountain and Comprehensive Identification of Candidate Genes Associated with Core Agronomic Traits by Four Analysis Models

Genome-wide investigation of the LARP gene family: focus on functional identification and transcriptome profiling of ZmLARP6c1 in maize pollen

Transcriptome Analysis Reveals the Vital Role of ABA Plays in Drought Tolerance of the ABA-Insensitive Alfalfa (Medicago sativa L.)

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