SiMYBS3, Encoding a Setaria italica Heterosis-Related MYB Transcription Factor, Confers Drought Tolerance in Arabidopsis

Liu, Xin; Zhang, Shuai; Sun, Mengbo; Guo, Yurong; Zhao, Shaofan; ZHOU, Xu-tao; Bai, Xionghui; Dai, Keli; Li, Huixia; Yuan, Xiangyang; Shi, Weiping; Guo, Peng; Guo, Jie

doi:10.3390/ijms24065418

Cited by 6 publications

(3 citation statements)

References 49 publications

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“…Changing the lignin content results in an altered structure of the xylem, and it also affects overall water transport in the plant. SiMYB16 positively regulates plant salt tolerance by affecting the biosynthesis of lignin (Yu et al 2023), and CcMYB107 in the legume pigeon pea (Cajanus cajan) functioned as a positive regulator of stress-related genes and lignin biosynthesis genes under drought stress (Li et al 2023). In purple false brome (Brachypodium distachyon), SECONDARY WALL ASSOCIATED MYB1 (SWAM1) activated the expression of cellulose and lignin biosynthesis genes, leading to a thicker SCW and more biomass accumulation (Handakumbura et al…”

Section: Discussionmentioning

confidence: 99%

PeMYB26, an R2R3-MYB transcription factor, positively regulates Lignin deposition in Moso bamboo

Hu,

Wang,

Chen

et al. 2024

Preprint

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Moso bamboo (Phyllostachys edulis) is a highly valuable woody bamboo species. A better understanding of its regulation of lignin deposition would significantly benefit its cultivation and breeding. Here, we identified PeMYB26, an transcription factor gene that is primarily expressed in the vascular system. PeMYB26 encodes an R2R3-MYB transcriptional activator that localizes to the nucleus. Heterologous expression of PeMYB26 under control of the cauliflower mosaic virus 35S promoter caused widening of xylem, thickening of vessel elements, and deposition of lignin in transgenic tobacco (Nicotiana tabacum) plants. Moreover, transcript abundances of the lignin biosynthesis genes PAL（PHENYLALANINE AMMONIA-LYASE）, CAD（CINNAMYL ALCOHOL DEHYDROGENASE）, COMT（CAFFEATE O-METHYLTRANSFERASE） and CCR （CINNAMOYL CoA REDUCTASE ）were markedly higher in N. tabacum lines overexpressing PeMYB26 than in control lines. In particular, the expression of PeCCR was highly promoted by PeMYB26. These results indicate that PeMYB26 plays a positive role in regulating lignin accumulation and xylem formation.

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Section: Discussionmentioning

confidence: 99%

PeMYB26, an R2R3-MYB transcription factor, positively regulates Lignin deposition in Moso bamboo

Hu,

Wang,

Chen

et al. 2024

Preprint

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“…Arabidopsis thaliana is the most studied plant in breeding research, mainly due to this plant's characteristics, which include small size, allowing the plant to grown in small spaces, rapid sexual reproduction, autogamy, short life cycle, and high seed production. Furthermore, an essential characteristic for Arabidopsis to be considered a model species is its possibility of being genetically transformed by Agrobacterium tumefaciens [51,52].…”

Section: Systematic Reviewmentioning

confidence: 99%

Advances in Crop Genetic Improvement to Overcome Drought Stress: Bibliometric and Meta-Analysis

da Silva,

Cassa,

de Melo

et al. 2023

Agriculture

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Plant resistance to drought stress is a parameter that should be studied with more emphasis in the search for higher agricultural yields. In this scenario, research within breeding programs should be directed toward specific mechanisms of action and important agricultural crops in worldwide agribusiness. From this perspective, this study carried out a bibliographic investigation regarding the advances in genetic improvement aimed at drought stress in crops using a hybrid model of analysis of scientific articles. The analysis employed bibliometric parameters for qualitative and quantitative discussion of scientific production and the methodological process of systematic review for the synthesis of the results obtained. The work was divided into four stages: the search for articles in databases, meta-analysis, bibliometric analysis, and systematic analysis. Scientific articles were searched for on the Scopus, Scielo, and Web of Science databases within a 20-year timeframe. Most authors and institutions were from Asian countries, demonstrating the need for global expansion of research on the subject. With regard to the co-occurrence networks between the keywords used in the search, a focus was observed on the following terms: drought resistance, drought stress; drought, and drought tolerance. Evidently, the primary mechanism of tolerance or even resistance studied in breeding programs is associated with the expression of genes and genetically modified organisms that confer resistance to plants. Also, the crops addressed in the research retrieved are highly diverse.

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“…When subjected to drought stress, MYB transcription factors can play a role in conducting Plants 2024, 13, 710 2 of 19 ABA signals, regulating the transcription of functional genes and other functions, and enhancing the drought resistance of plants [11,12]. The results of multiple studies support MYB as a potential transcription factor for plant breeding and improvement [13,14].…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Diversity of MYB Family Response Strategies to Drought Stress in Different Flax Varieties Based on Transcriptome Data

Zhang,

Liu,

et al. 2024

Plants

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The MYB transcription factor family has numerous members, and is involved in biological activities, such as ABA signaling, which plays an important role in a plant’s resistance to abiotic stresses such as drought. However, the diversity of MYB members that respond to drought stress and their regulatory mechanisms in different flax varieties were unclear. In this study, we obtained 855.69 Gb of clean data from 120 flax root samples from 20 flax (Linum usitatissimum L.) varieties, assembled 92,861 transcripts, and identified 434 MYB family members in each variety. The expression profiles of the MYB transcription factor family from 20 flax varieties under drought stress were analyzed. The results indicated that there are four strategies by which the MYB family responds to drought stress in these 20 flax varieties, each of which has its own specific processes, such as development, reproduction, and localization processes. The four strategies also include common biological processes, such as stimulus responses, metabolic processes, and biological regulation. The WGCNA method was subsequently employed to identify key members of the MYB family involved in response strategies to drought stress. The results demonstrated that a 1R-MYB subfamily gene co-expression network is significantly related to the gibberellin response and cytokinin-activated signaling pathway processes in the ‘Strategy 4’ for MYB family response to drought, identifying core genes such as Lus.scaffold70.240. Our results showed a diversity of MYB family responses to drought stress within flax varieties, and these results contribute to deciphering the mechanisms of the MYB family regulation of drought resistance. This will promote the more accurate breeding development of flax to adapt to agricultural production under drought conditions.

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SiMYBS3, Encoding a Setaria italica Heterosis-Related MYB Transcription Factor, Confers Drought Tolerance in Arabidopsis

Cited by 6 publications

References 49 publications

PeMYB26, an R2R3-MYB transcription factor, positively regulates Lignin deposition in Moso bamboo

PeMYB26, an R2R3-MYB transcription factor, positively regulates Lignin deposition in Moso bamboo

Advances in Crop Genetic Improvement to Overcome Drought Stress: Bibliometric and Meta-Analysis

Analyzing the Diversity of MYB Family Response Strategies to Drought Stress in Different Flax Varieties Based on Transcriptome Data

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