2010
DOI: 10.1016/j.febslet.2010.12.036
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Over-expression of sly-miR156a in tomato results in multiple vegetative and reproductive trait alterations and partial phenocopy of the sft mutant

Abstract: Edited by Tamas DalmayKeywords: Tomato miR156 Plant architecture Inflorescence structure Fruit development a b s t r a c t Plant microRNAs (miRNAs) are vital components of the translation control system that regulates plant development and reproduction. The biological function of sly-miR156 was investigated by over-expression in tomato plants. Transgenic tomato plants exhibited a drastically altered phenotype, with reduced height, smaller but more numerous leaves, and smaller fruit. The inflorescence structure… Show more

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Cited by 181 publications
(152 citation statements)
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“…In Arabidopsis, miR156 overexpression results in a prolonged juvenile phase and a delay in flowering, with increased branching and production of a large number of leaves (Huijser and Schmid, 2011). Similar phenotypes of miR156 overexpression were also observed in rice (Xie et al, 2006), maize (Chuck et al, 2007), switchgrass (Panicum virgatum;Fu et al, 2012), and tomato (Solanum lycopersicum; Zhang et al, 2011b). In a recent study, Eviatar-Ribak et al (2013) overexpressed the Arabidopsis miR156 gene in potato (cv Desiree), where miR156-overexpressing lines exhibited suppressed leaf complexity and produced aerial tubers, indicating a role of miR156 in tuberization.…”
mentioning
confidence: 53%
“…In Arabidopsis, miR156 overexpression results in a prolonged juvenile phase and a delay in flowering, with increased branching and production of a large number of leaves (Huijser and Schmid, 2011). Similar phenotypes of miR156 overexpression were also observed in rice (Xie et al, 2006), maize (Chuck et al, 2007), switchgrass (Panicum virgatum;Fu et al, 2012), and tomato (Solanum lycopersicum; Zhang et al, 2011b). In a recent study, Eviatar-Ribak et al (2013) overexpressed the Arabidopsis miR156 gene in potato (cv Desiree), where miR156-overexpressing lines exhibited suppressed leaf complexity and produced aerial tubers, indicating a role of miR156 in tuberization.…”
mentioning
confidence: 53%
“…Recent studies have shown that miR156 accumulation reaches the highest level in seedlings, then decreases gradually as the plant develops, resulting in a gradual increase in target SPL transcripts in a number of herbaceous and woody species (Wu and Poethig, 2006;Chuck et al, 2007;Wang et al, 2009Wang et al, , 2011Wu et al, 2009;Tanaka et al, 2011;Yoshikawa et al, 2013;Hudson et al, 2014). Plants constitutively overexpressing miR156 share common phenotypes in several species, for example, a prolonged juvenile phase, accelerated leaf initiation and delayed flowering (Schwab et al, 2005;Wu and Poethig, 2006;Xie et al, 2006Xie et al, , 2012Zhang et al, 2011;Chuck et al, 2011). Conversely, plants with endogenous miR156 function disrupted by mimicry targets or by T-DNA insertions exhibit opposite phenotypes, e.g.…”
Section: Introductionmentioning
confidence: 99%
“…Transgenic tomato plants exhibited a drastically altered phenotype, such as dwarfism, a 'bush-like' structure, more abundant leaves, shorter plastochron, later flowering, smaller and fewer fruits, and produced numerous adventitious roots [59]. The inflorescence structure of miR156-overexpressing plants phenocopied the sft mutant [60].…”
Section: Transgenic Analysis In Exploring Mirnas Functionmentioning
confidence: 99%
“…The targets of miR156 included six (SBP)-box transcription factor genes. These target genes, as well as the tomato FLOWERING LOCUST (FT) ortholog SFT, were significantly downregulated in the miR156-overexpressing plants [59]. An epigenetic mutation in a tomato SBP-box gene (COLO-RLESS NON-RIPENING; CNR) resulted in colorless non-ripening fruits [62].…”
Section: Transgenic Analysis In Exploring Mirnas Functionmentioning
confidence: 99%
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