The tomato MADS-box gene SlMBP9 negatively regulates lateral root formation and apical dominance by reducing auxin biosynthesis and transport

Li, Anzhou; Chen, Guoping; Yu, Xiaohui; Zhu, Zhiguo; Zhang, Lincheng; Zhou, Shengen; Hu, Zongli

doi:10.1007/s00299-019-02417-x

Cited by 15 publications

(9 citation statements)

References 57 publications

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“…Some bHLH family genes are involved in regulation of root epidermal cells, xylem development, root elongation and maintenance of the root apical meristem in Arabidopsis (Bernhardt et al 2003;Ohashi-Ito et al 2013;Katayama et al 2015;Tian et al 2015). In tomato, SlMBP9, a MADS box gene, suppresses lateral root formation by reducing auxin responses (Li et al 2019). The tomato root-related TFs identified in this study are thus primary candidates for understanding root development and regulation of its growth.…”

Section: Role Of Transcriptional Regulatorsmentioning

confidence: 78%

Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues

Kumar

Singh

Majee

et al. 2021

Physiol Mol Biol Plants

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Tomato is an economically important vegetable crop and a model for development and stress response studies. Although studied extensively for understanding fruit ripening and pathogen responses, its role as a model for root development remains less explored. In this study, an Illumina-based comparative differential transcriptomic analysis of tomato root with different aerial tissues was carried out to identify genes that are predominantly expressed during root growth. Sequential comparisons revealed * 15,000 commonly expressed genes and * 3000 genes of several classes that were mainly expressed or regulated in roots. These included 1069 transcription factors (TFs) of which 100 were differentially regulated. Prominent amongst these were members of families encoding Zn finger, MYB, ARM, bHLH, AP2/ ERF, WRKY and NAC proteins. A large number of kinases, phosphatases and F-box proteins were also expressed in the root transcriptome. The major hormones regulating root growth were represented by the auxin, ethylene, JA, ABA and GA pathways with root-specific expression of certain components. Genes encoding carbon metabolism and photosynthetic components showed reduced expression while several protease inhibitors were amongst the most highly expressed. Overall, the study sheds light on genes governing root growth in tomato and provides a resource for manipulation of root growth for plant improvement.

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Section: Role Of Transcriptional Regulatorsmentioning

confidence: 78%

Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues

Kumar

Singh

Majee

et al. 2021

Physiol Mol Biol Plants

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“…In this study, we found that VvMADS4 is a potential transcription factor negatively regulating VvCCD4b expression. MADS transcription factors regulate fruit ripening (Ito et al, 2008), vegetative organ development (Guo et al, 2017;Li et al, 2019), flowering time (Jeon et al, 2000;Alter et al, 2016), floral meristem and organ identity (Thompson et al, 2009), stress tolerance (Guo et al, 2016), and metabolism (Lu et al, 2018;Zha et al, 2019). MADS proteins are divided into Type I and Type II based on conserved motifs and exon count.…”

Section: Functional Characterization Of Vvmads4mentioning

confidence: 99%

Characterization of Transcriptional Expression and Regulation of Carotenoid Cleavage Dioxygenase 4b in Grapes

et al. 2020

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Norisoprenoids are important aromatic volatiles contributing to the pleasant floral/fruity odor in grapes and wine. They are produced from carotenoids through the cleavage of carotenoid cleavage dioxygenases (CCDs). However, the underlying mechanisms regulating VvCCD expression remain poorly understood. In this study, we showed that VvCCD4b expression was positively correlated with the accumulation of β-damascenone, β-ionone, 6-methyl-5-hepten-2-one, geranylacetone, dihydroedulan I, and total norisoprenoids in developing grapes in two vintages from two regions. VvCCD4b was found to be principally expressed in flowers, mature leaves, and berries. Abscisic acid strongly induced the expression of this gene. Additionally, the present study preliminarily indicated that the activity of the VvCCD4b promoter was dropped under 37 • C treatment and also responded to the illumination change. VvCCD4b was expressed in parallel with VvMADS4 in developing grape berries. The latter is a MADS family transcription factor and nucleus-localized protein that was captured by yeast one-hybrid. A dual-luciferase reporter assay in tobacco leaves revealed that VvMADS4 downregulated the activity of the VvCCD4b promoter. VvMADS4 overexpression in grape calli and Vitis quinquangularis Rehd. leaves repressed the VvCCD4b expression. In summary, this work demonstrates that VvCCD4b expression is positively correlated with the accumulation of norisoprenoids, and VvMADS4 is a potential negative regulator of VvCCD4b. Our results provide a new perspective for understanding the regulation of VvCCD4b expression and norisoprenoid accumulation in grapes.

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“…MADS-box proteins are crucial transcription factors involved in the regulation of signal transduction [7], stress responses [8,9], and various aspects of plant development, including vernalization and flowering time control [10,11], floral organ (carpels, stamens, sepals, and petals) development [12][13][14][15][16], carpel identity and pollen development [17,18], reproductive development [19], seed development and pigmentation [20][21][22][23], root development [24,25], formation and dehiscence of fruit [26][27][28], and endosperm development [29]. In recent years, numerous MADS box TFs have been discovered to be associated with fruit ripening [30].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification of Mango (<em>Mangifera indica</em> L.) MADS-Box Genes Related to Fruit Ripening

Zheng,

Wang,

et al. 2023

Preprint

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MADS-box genes play a crucial role in fruit ripening, yet limited research has been conducted on mango. Based on the conserved domains of this gene family, 84 MADS-box genes were identified in the mango genome, including 22 type I and 62 type II MADS-box genes. Gene duplication analysis revealed that both tandem duplication and segmental replication significantly contributed to the expansion of MADS-box genes in the mango genome, with purifying selection playing a vital role in the segmental duplication events within the MiMADS gene family. Cis-acting element analysis demonstrated that most MiMADS genes were hormonally regulated and participated in the growth, development, and stress resistance of mango fruit. Moreover, through expression pattern analysis and phylogenetic tree construction, we identified six MiMADS genes belonging to the SEP1 subfamily and two belonging to the AG subfamily as potential candidates involved in mango ripening regulation. Notably, Mi08g17750 and Mi04g18430 from the SEP1 subfamily were identified as key regulators inhibiting mango fruit maturation; their interaction network was also analyzed. These findings provide a foundation for further investigation into the regulatory mechanisms underlying mango ripening.

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The tomato MADS-box gene SlMBP9 negatively regulates lateral root formation and apical dominance by reducing auxin biosynthesis and transport

Cited by 15 publications

References 57 publications

Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues

Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues

Characterization of Transcriptional Expression and Regulation of Carotenoid Cleavage Dioxygenase 4b in Grapes

Genome-Wide Identification of Mango (<em>Mangifera indica</em> L.) MADS-Box Genes Related to Fruit Ripening

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