Single-repeat R3 MYB transcription factors from Platanus acerifolia negatively regulate trichome formation in Arabidopsis

Zhang, Yanping; Zhang, Jiaqi; Shao, Changsheng; Bao, Zhiru; Li, Guofeng; Bao, Manzhu

doi:10.1007/s00425-018-3042-3

Cited by 12 publications

(4 citation statements)

References 72 publications

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“…In addition to phytohormones, many TFs control signal transduction under biotic and abiotic stresses, including the MYB (10), ERF (10), NAC (8), WRKY (7), MYB-related (6), and bHLH (5) families, whose members promote or suppress abiotic stress responses [24][25][26][27][28]. For example, MYBs have been studied in various plant species and have been proven to be related to growth and development and stress responses in plants [29][30][31][32][33][34]; these results agreed with our study that MYB-encoding DEGs may be involved in resistance to nutrient deficiencies. Ten DEGs encoding ERF were obtained in our study, and seven of them were enriched in G1, indicating their role in the nutrient/genotype interaction.…”

Section: Discussionmentioning

confidence: 99%

Comparative Transcriptome Analysis of High- and Low-Growth Genotypes of Eucalyptus urophylla in Response to Long-Term Nitrogen Deficiency

Yang,

Xu,

Pan

et al. 2023

Genes

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Nutrients play important roles in the growth and development of most plant species. However, in perennial trees, the function of nutrients in different genotypes is poorly understood. Three different nutrient levels (low, sufficient, and high nutrient levels) were applied to two contrasting Eucalyptus urophylla cultivars (a high-growth cultivar ZQUA44 and a low-growth cultivar ZQUB15), and growth and expression levels were analyzed. Although the growth traits of both genotypes under nutrient starvation treatment were much lower than under abundant nutrients, tree height, crown width, and biomass of different ZQUA44 tissues were much higher than those of ZQUB15 at all three nutrient levels. Differentially expressed genes (DEGs) clustered into six subclusters based on their expression patterns, and functional annotation showed that the DEGs involved in glutathione metabolism and flavonoid biosynthesis may be responsible for nutrient starvation across different genotypes, while the DEGs involved in carotenoid biosynthesis and starch and sucrose metabolism may have a range of functions in different genotypes. The DEGs encoding the MYB-related family may be responsible for nutrient deficiency in all genotypes, while B3 may have different functions in different genotypes. Our results demonstrate that different genotypes may form different pathways to coordinate plant survival when they face abiotic stresses.

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Section: Discussionmentioning

confidence: 99%

Comparative Transcriptome Analysis of High- and Low-Growth Genotypes of Eucalyptus urophylla in Response to Long-Term Nitrogen Deficiency

Yang,

Xu,

Pan

et al. 2023

Genes

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“…Previous studies indicated that CPL proteins in plants were localized in the nucleus as well as the cytoplasm or plasma membrane [ 8 , 55 , 56 , 57 ], or mainly in the nucleus [ 54 ]. In this study, we found that group I JcCPL proteins were localized mainly in the nucleus while group II JcCPL proteins were present in both the nucleus and cytoplasm under the same conditions.…”

Section: Discussionmentioning

confidence: 99%

Ectopic Expression of JcCPL1, 2, and 4 Affects Epidermal Cell Differentiation, Anthocyanin Biosynthesis and Leaf Senescence in Arabidopsis thaliana

Chen

Zhang

et al. 2022

IJMS

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The CAPRICE (CPC)-like (CPL) genes belong to a single-repeat R3 MYB family, whose roles in physic nut (Jatropha curcas L.), an important energy plant, remain unclear. In this study, we identified a total of six CPL genes (JcCPL1–6) in physic nut. The JcCPL3, 4, and 6 proteins were localized mainly in the nucleus, while proteins JcCPL1, 2, and 5 were localized in both the nucleus and the cytoplasm. Ectopic overexpression of JcCPL1, 2, and 4 in Arabidopsis thaliana resulted in an increase in root hair number and decrease in trichome number. Consistent with the phenotype of reduced anthocyanin in shoots, the expression levels of anthocyanin biosynthesis genes were down-regulated in the shoots of these three transgenic A. thaliana lines. Moreover, we observed that OeJcCPL1, 2, 4 plants attained earlier leaf senescence, especially at the late developmental stage. Consistent with this, the expression levels of several senescence-associated and photosynthesis-related genes were, respectively, up-regulated and down-regulated in leaves. Taken together, our results indicate functional divergence of the six CPL proteins in physic nut. These findings also provide insight into the underlying roles of CPL transcription factors in leaf senescence.

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“…MYB TFs, one of the largest plant TF families, are implicated in the regulation of diverse biological processes in plants, including growth and development (Huang et al, 2019; Zhang et al, 2019), hormone signaling (Kim et al, 2015; Bar et al, 2016), abiotic and biotic stress responses (Shin et al, 2011; Campos et al, 2016; Camargo‐Ramirez et al, 2018), and secondary metabolism (Hu et al, 2017; Ampomah‐Dwamena et al, 2019). Recently, MYB TFs have been reported to play important roles in regulating fruit quality and ripening processes (Medina‐Puche et al, 2015; Wei et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Alternative splicing of MaMYB16L regulates starch degradation in banana fruit during ripening

Jiang

Zhang

et al. 2021

JIPB

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The alternative splicing of select genes is an important mechanism to regulate responses to endogenous and environmental signals in plants. However, the role of alternative splicing in regulating fruit ripening remains unclear. Here, we discovered that MaMYB16L, an R1‐type MYB transcription factor, undergoes alternative splicing and generates two transcripts, the full‐length isoform MaMYB16L and a truncated form MaMYB16S, in banana fruit. During banana fruit ripening, the alternative splicing process intensifies with downregulated MaMYB16L and upregulated MaMYB16S. Moreover, MaMYB16L is a transcriptional repressor that directly binds with the promoters of many genes associated with starch degradation and MaDREB2, a positive ripening regulator, and represses their expression. In contrast, MaMBY16S lacks a DNA‐binding domain but competitively combines and forms non‐functional heterodimers with functional MaMYB16L. MaMYB16L‐MaMYB16S heterodimers decrease the binding capacity and transrepression activity of MaMYB16L. The downregulation of MaMYB16L and the upregulation of MaMYB16S, that is, a decreased ratio of active to non‐active isoforms, facilitates the activation of ripening‐related genes and thereby promotes fruit ripening. Furthermore, the transient overexpression of MaMYB16S promotes banana fruit ripening, whereas the overexpression of MaMYB16L delays this process. Therefore, the alternative splicing of MaMYB16L might generate a self‐controlled regulatory loop to regulate banana fruit ripening.

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Single-repeat R3 MYB transcription factors from Platanus acerifolia negatively regulate trichome formation in Arabidopsis

Cited by 12 publications

References 72 publications

Comparative Transcriptome Analysis of High- and Low-Growth Genotypes of Eucalyptus urophylla in Response to Long-Term Nitrogen Deficiency

Comparative Transcriptome Analysis of High- and Low-Growth Genotypes of Eucalyptus urophylla in Response to Long-Term Nitrogen Deficiency

Ectopic Expression of JcCPL1, 2, and 4 Affects Epidermal Cell Differentiation, Anthocyanin Biosynthesis and Leaf Senescence in Arabidopsis thaliana

Alternative splicing of MaMYB16L regulates starch degradation in banana fruit during ripening

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