SIMYB1 and SIMYB2 , two new MYB genes from tomato, transcriptionally regulate cellulose biosynthesis in tobacco

Shi, Yanna; Liu, Xiaofen; Xue, Li; Dong, Wencheng; Grierson, Donald; X, Yin; Chen, Kunsong

doi:10.1016/s2095-3119(16)61389-8

Cited by 12 publications

(3 citation statements)

References 57 publications

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“…In other plant species, several MYB transcription factors are associated with lignin synthesis, including PtrMYB3 , PtrMYB20 , EgMYB2 , PvMYB4 , PtMYB1 , PtMYB4 , PtMYB8 , OsMYB46 , and ZmMYB (Patzlaff et al, 2003; Bomal et al, 2008; McCarthy et al, 2010; Rahantamalala et al, 2010; Zhong et al, 2011; Shen et al, 2012). In tomato, SlMYB1 and SlMYB2 have been found to regulate cellulose metabolism (Shi et al, 2017), whereas in chrysanthemum, overexpression of the CmMYB19 transcription enhances lignin content and aphid tolerance in transgenic plants (Wang et al, 2017). Numerous MYB transcription factors, including AtMYB58, AtMYB63, and AtMYB85, recognize and bind lignin synthesis gene promoters, thereby regulating their expression (Zhong et al, 2007; Zhou et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Citrus sinensis MYB Transcription Factor CsMYB85 Induce Fruit Juice Sac Lignification Through Interaction With Other CsMYB Transcription Factors

Jia

Liu²,

Tan

et al. 2019

Front. Plant Sci.

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Varieties of Citrus are commercially important fruits that are cultivated worldwide and are valued for being highly nutritious and having an appealing flavor. Lignification of citrus fruit juice sacs is a serious physiological disorder that occurs during postharvest storage, for which the underlying transcriptional regulatory mechanisms remain unclear. In this study, we identified and isolated a candidate MYB transcription factor, CsMYB85, that is involved in the regulation of lignin biosynthesis in Citrus sinensis , which has homologs in Arabidopsis and other plants. We found that during juice sac lignification, CsMYB85 expression levels increase significantly, and therefore, suspected that this gene may control lignin biosynthesis during the lignification process. Our results indicated that CsMYB85 binds the CsMYB330 promoter, regulates its expression, and interacts with CsMYB308 in transgenic yeast and tobacco. A transient expression assay indicated that Cs4CL1 expression levels and lignin content significantly increased in fruit juice sacs overexpressing CsMYB85. At4CL1 expression levels and lignin content were also significantly increased in Arabidopsis overexpressing CsMYB85. We accordingly present convincing evidence for the participation of the CsMYB85 transcription factor in fruit juice sac lignification, and thereby provide new insights into the transcriptional regulation of this process in citrus fruits.

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Section: Introductionmentioning

confidence: 99%

Citrus sinensis MYB Transcription Factor CsMYB85 Induce Fruit Juice Sac Lignification Through Interaction With Other CsMYB Transcription Factors

Jia

Liu²,

Tan

et al. 2019

Front. Plant Sci.

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“…It is highly likely that other as yet unrecognised proteins are associated with such complexes, as has been found for cellulose [46,47]. …”

Section: Introductionmentioning

confidence: 99%

“…Xylan synthesizing complexes (XSC) containing a number of protein types have been identified in wheat [ 33 ] and Populous [ 44 ] and most recently it was shown that three proteins from Asparagus officinalis , IRX9, 10 and 14 are required in a Golgi-localised XSC for xylan xylosyltransferase activity [ 45 ]. It is highly likely that other as yet unrecognised proteins are associated with such complexes, as has been found for cellulose [ 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

A Genome Wide Association Study of arabinoxylan content in 2-row spring barley grain

et al. 2017

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In barley endosperm arabinoxylan (AX) is the second most abundant cell wall polysaccharide and in wheat it is the most abundant polysaccharide in the starchy endosperm walls of the grain. AX is one of the main contributors to grain dietary fibre content providing several health benefits including cholesterol and glucose lowering effects, and antioxidant activities. Due to its complex structural features, AX might also affect the downstream applications of barley grain in malting and brewing. Using a high pressure liquid chromatography (HPLC) method we quantified AX amounts in mature grain in 128 spring 2-row barley accessions. Amounts ranged from ~ 5.2 μg/g to ~ 9 μg/g. We used this data for a Genome Wide Association Study (GWAS) that revealed three significant quantitative trait loci (QTL) associated with grain AX levels which passed a false discovery threshold (FDR) and are located on two of the seven barley chromosomes. Regions underlying the QTLs were scanned for genes likely to be involved in AX biosynthesis or turnover, and strong candidates, including glycosyltransferases from the GT43 and GT61 families and glycoside hydrolases from the GH10 family, were identified. Phylogenetic trees of selected gene families were built based on protein translations and were used to examine the relationship of the barley candidate genes to those in other species. Our data reaffirms the roles of existing genes thought to contribute to AX content, and identifies novel QTL (and candidate genes associated with them) potentially influencing the AX content of barley grain. One potential outcome of this work is the deployment of highly associated single nucleotide polymorphisms markers in breeding programs to guide the modification of AX abundance in barley grain.

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24-Epibrassinolide Enhances Resistance Against Colletotrichum fructicola by Promoting Lignin Biosynthesis in Camellia sinensis L.

Zhang

Ahammed

et al. 2022

J Plant Growth Regul

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SIMYB1 and SIMYB2 , two new MYB genes from tomato, transcriptionally regulate cellulose biosynthesis in tobacco

Cited by 12 publications

References 57 publications

Citrus sinensis MYB Transcription Factor CsMYB85 Induce Fruit Juice Sac Lignification Through Interaction With Other CsMYB Transcription Factors

Citrus sinensis MYB Transcription Factor CsMYB85 Induce Fruit Juice Sac Lignification Through Interaction With Other CsMYB Transcription Factors

A Genome Wide Association Study of arabinoxylan content in 2-row spring barley grain

24-Epibrassinolide Enhances Resistance Against Colletotrichum fructicola by Promoting Lignin Biosynthesis in Camellia sinensis L.

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