Regulatory Networks Involving YABBY Genes in Rice Shoot Development

Dai, Mingqiu; Hu, Yongfeng; Zhao, Yu; Zhou, Dao‐Xiu

doi:10.4161/psb.2.5.4279

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…In our study, the AGCVIIIa protein kinase gene ( pkv ; protein kinase viroid-induced) that was transcriptionally activated in PSTVd-infected tomato and is proposed to be involved in GA signaling [ 60 , 61 ], was also transcriptionally activated in leaves, but not flowers, of viroid-infected plants ( Figure 4 ). In rice, the YABBY1 gene (encoding a transcription factor) is involved in GA biosynthesis and overexpression resulted in a semi-dwarf phenotype [ 62 ]. YABBY1 also controls carpel number during flower and fruit development [ 63 ].…”

Section: Resultsmentioning

confidence: 99%

Pospiviroid Infection of Tomato Regulates the Expression of Genes Involved in Flower and Fruit Development

Aviña-Padilla

Rivera-Bustamante

Kovalskaya

et al. 2018

Viruses

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Viroids are unencapsidated, single-stranded, covalently-closed circular, highly structured, noncoding RNAs of 239–401 nucleotides that cause disease in several economically important crop plants. In tomato (Solanum lycopersicum cv. Rutgers), symptoms of pospiviroid infection include stunting, reduced vigor, flower abortion, and reduced size and number of fruits, resulting in significant crop losses. Dramatic alterations in plant development triggered by viroid infection are the result of differential gene expression; in our study, we focused on the effect of tomato planta macho viroid (TPMVd) and Mexican papita viroid (MPVd) infection on gene networks associated with the regulation of flower and fruit development. The expression of several of the genes were previously reported to be affected by viroid infection, but two genes not previously studied were included. Changes in gene expression of SlBIGPETAL1 (bHLH transcription factor) and SlOVA6 (proline-like tRNA synthetase) are involved in petal morphology and fertility, respectively. Expression of SlOVA6 was down-regulated in flowers of TPMVd- and MPVd-infected plants, while expression of SlBIGPETAL1 was up-regulated in flowers. Up-regulation of SlBIGPETAL1 and down-regulation of SlOVA6 were positively correlated with symptoms such as reduced petal size and flower abortion. Expression analysis of additional tomato genes and a prediction of a global network association of genes involved in flower and fruit development and impacted by viroid infection may further elucidate the pathways underlying viroid pathogenicity.

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Section: Resultsmentioning

confidence: 99%

Pospiviroid Infection of Tomato Regulates the Expression of Genes Involved in Flower and Fruit Development

Aviña-Padilla

Rivera-Bustamante

Kovalskaya

et al. 2018

Viruses

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“…At the same time, the YABBY genes play a role in the regulation of the KNOX genes, resulting in the regulation of GA biosynthesis in the shoot in rice (Dai et al. ).…”

Section: Discussionmentioning

confidence: 99%

Quantitative trait loci for the response to gibberellic acid of berry size and seed mass in tablegrape (Vitis vinifera L.)

Correa

Ravest

Laborie

et al. 2015

Australian Journal of Grape and Wine Research

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Background and Aims: Bioactive gibberellins are commonly applied to increase the size of berries in seedless tablegrapes. The genetic determinants for the response of berry size to gibberellic acid (GA3) were investigated in a progeny (n = 137) of Ruby Seedless × Sultanina. Methods and Results: Seed and berry size-related traits were measured at harvest (18°Brix). Heritability was high (∼79%) for all traits under study, especially seed dry mass (>90%). All these traits responded to GA3 and showed interaction between genotype and treatment (g × GA3). Based on quantitative trait loci (QTL) analysis and the grapevine reference genome, we identified about 200 annotated genes located in the corresponding confidence intervals in linkage groups 2 and 18. Nineteen of these genes were selected for further characterisation because of their possible participation in g × GA3.Conclusions: The response to GA3 has an important genetic basis which is given by QTLs localised on linkage groups 2 and 18. Under GA3 treatment, the seed loses its genetic control on berry size given by its major QTLs, indicating a possible interaction between this genetic determinant and GA3. Despite the masking effect, VvAGL11 is associated with the intensity of the response to GA3. Significance of the Study: These results indicate the complex role of g × GA3 at the genetic level in the control of berry size.

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“…The CCT genes were implicated in flowering time control by photoperiod and circadian pathways (Valverde, 2011). The YABBY and TCP genes were shown to participate in the activities controlling lateral organs as well as the shoot apical meristem (Dai et al, 2007;Martín-Trillo and Cubas, 2010). These results suggest that Ghd7 plays a different role in vegetative and reproductive organs by regulating various transcription networks.…”

Section: Ghd7 Regulates the Transcriptomes Of Multiple Processesmentioning

confidence: 97%

Grain Number,Plant Height,and Heading Date7Is a Central Regulator of Growth, Development, and Stress Response

et al. 2014

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Grain number, plant height, and heading date7 (Ghd7) has been regarded as an important regulator of heading date and yield potential in rice (Oryza sativa). In this study, we investigated functions of Ghd7 in rice growth, development, and environmental response. As a long-day dependent negative regulator of heading date, the degree of phenotypic effect of Ghd7 on heading date and yield traits is quantitatively related to the transcript level and is also influenced by both environmental conditions and genetic backgrounds. Ghd7 regulates yield traits through modulating panicle branching independent of heading date. Ghd7 also regulates plasticity of tiller branching by mediating the PHYTOCHROME B-TEOSINTE BRANCHED1 pathway. Drought, abscisic acid, jasmonic acid, and high-temperature stress strongly repressed Ghd7 expression, whereas low temperature enhanced Ghd7 expression. Overexpression of Ghd7 increased drought sensitivity, whereas knock-down of Ghd7 enhanced drought tolerance. Gene chip analysis of expression profiles revealed that Ghd7 was involved in the regulation of multiple processes, including flowering time, hormone metabolism, and biotic and abiotic stresses. This study suggests that Ghd7 functions to integrate the dynamic environmental inputs with phase transition, architecture regulation, and stress response to maximize the reproductive success of the rice plant.

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Regulatory Networks Involving YABBY Genes in Rice Shoot Development

Cited by 10 publications

References 18 publications

Pospiviroid Infection of Tomato Regulates the Expression of Genes Involved in Flower and Fruit Development

Pospiviroid Infection of Tomato Regulates the Expression of Genes Involved in Flower and Fruit Development

Quantitative trait loci for the response to gibberellic acid of berry size and seed mass in tablegrape (Vitis vinifera L.)

Grain Number,Plant Height,and Heading Date7Is a Central Regulator of Growth, Development, and Stress Response

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