scholarly journals Cs SPL functions as an adaptor between HD ‐ ZIP   III and Cs WUS transcription factors regulating anther and ovule development in Cucumis sativus (cucumber)

2018 ◽  
Vol 94 (3) ◽  
pp. 535-547 ◽  
Author(s):  
Xiaofeng Liu ◽  
Kang Ning ◽  
Gen Che ◽  
Shuangshuang Yan ◽  
Lijie Han ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Cucumis Sativus ◽  
Ovule Development

scholarly journals Transcriptome analysis reveals rice MADS13 as an important repressor of the carpel development pathway in ovules

2020 ◽  
Author(s):  
Michela Osnato ◽  
Elia Lacchini ◽  
Alessandro Pilatone ◽  
Ludovico Dreni ◽  
Andrea Grioni ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Molecular Mechanisms ◽  
Target Genes ◽  
Protein Complexes ◽  
Female Sterility ◽  
Homeotic Genes ◽  
Ovule Development ◽  
Knock Out ◽  
Regulatory Pathways ◽  
Genes Encoding

Abstract In angiosperms, floral homeotic genes encoding MADS-domain transcription factors regulate the development of floral organs. Specifically, members of the SEPALLATA (SEP) and AGAMOUS (AG) subfamilies form higher-order protein complexes to control floral meristem determinacy and to specify the identity of female reproductive organs. In rice, the AG subfamily gene OsMADS13 is intimately involved in the determination of ovule identity, since knock-out mutant plants develop carpel-like structures in place of ovules, resulting in female sterility. Little is known about the regulatory pathways at the base of rice gynoecium development. To investigate molecular mechanisms acting downstream of OsMADS13, we obtained transcriptomes of immature inflorescences from wild-type and Osmads13 mutant plants. Among a total of 476 differentially expressed genes (DEGs), a substantial overlap with DEGs from the SEP-family Osmads1 mutant was found, suggesting that OsMADS1 and OsMADS13 may act on a common set of target genes. Expression studies and preliminary analyses of two up-regulated genes encoding Zinc-finger transcription factors indicated that our dataset represents a valuable resource for the identification of both OsMADS13 target genes and novel players in rice ovule development. Taken together, our study suggests that OsMADS13 is an important repressor of the carpel pathway during ovule development.

scholarly journals The Transcription Factors BEL1 and SPL Are Required for Cytokinin and Auxin Signaling During Ovule Development in Arabidopsis

2012 ◽  
Vol 24 (7) ◽  
pp. 2886-2897 ◽  
Author(s):  
Stefano Bencivenga ◽  
Sara Simonini ◽  
Eva Benková ◽  
Lucia Colombo
Keyword(s):  
Transcription Factors ◽  
Auxin Signaling ◽  
Ovule Development

scholarly journals Genome-Wide Characterization of Cucumber (Cucumis sativus L.) GRAS Genes and Their Response to Various Abiotic Stresses

Horticulturae ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 110
Author(s):  
Caixia Li ◽  
Shaoyun Dong ◽  
Xiaoping Liu ◽  
Kailiang Bo ◽  
Han Miao ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Cucumis Sativus ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Transcriptional Analysis ◽  
Cucumis Sativus L ◽  
Genome Wide ◽  
Cucumber Genome ◽  
Multiple Signaling

The GRAS (gibberellic acid insensitive, repressor of GAI, and scarecrow) proteins are a family of plant-specific transcription factors that regulate plant growth, development, and stress response. Currently, the role of GRAS transcription factors in various abiotic stress responses has not been systematically studied in cucumber (Cucumis sativus L.), a popular vegetable crop. Here, we provide a comprehensive bioinformatics analysis of the 35 GRAS genes identified in the cucumber genome. In this study, cucumber genotypes, i.e., “CG104”, which is stress-tolerant, and genotype “CG37”, which is stress-sensitive, were examined to provide insight on potential differences in the GRAS-regulated abiotic stress pathways. Transcriptional analysis by RNA-seq or qRT-PCR of these two genotypes revealed common and divergent functions of CsGRAS genes regulated by low and high temperatures, salinity, and by exposure to the phytohormones gibberellin (GA) and abscisic acid (ABA). Notably, CsGRAS2 (DELLA) and CsGRAS26 (LISCL) were regulated by all abiotic stresses and hormone treatments, suggesting that they may function in the biological cross-talk between multiple signaling pathways. This study provides candidate genes for improving cucumber tolerance to various environmental stresses.

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