Similar Datasets
Project description:Plant height and grain size are important agronomic traits affecting rice yield. Various plant hormones participate in the regulation of plant height and grain size in rice. However, how these hormones cooperate to regulate plant height and grain size is poorly understood. In this study, we identified a brassinosteroid-related gene, hfr131, from an introgression line constructed using Oryza longistaminata, that caused brassinosteroid insensitivity and reduced plant height and grain length in rice. Further study showed that hfr131 is a new allele of OsBRI1 with a single-nucleotide polymorphism (G to A) in the coding region, leading to a T988I conversion at a conserved site of the kinase domain. An auxin response factor, OsARF17, could bind to the promoter region of HFR131 and positively regulated HFR131 expression, thereby regulating the plant height and grain length, and influencing brassinosteroid sensitivity. Haplotype analysis showed that the consociation of OsAFR17Hap1/HFR131Hap6 conferred an increase in grain length. Overall, this study identified hfr131 as a new allele of OsBRI1 that regulates plant height and grain length in rice, revealed that brassinosteroid and auxin might coordinate through OsARF17–HFR131 interaction, and provided a potential breeding target for improvement of rice yield.
2023-03-17 | GSE224118 | GEO
Project description:Plant height is a major trait affecting yield potential in rice. Using a large-scale hybrid transcription factor approach, we identified the novel MYB-like transcription factor OsMPH1 (MYB-like gene of Plant Height 1), which is involved in the regulation of plant height in rice.Overexpression of OsMPH1 leads to increases of plant height and grain yield in rice, while knockdown of OsMPH1 leads to the opposite phenotypes. RNA-seq is used for exploring differences between OsMPH1 transgenic rice and wild-type plants.
2017-07-01 | E-MTAB-5759 | biostudies-arrayexpress
Project description:Polyploidization is one of the effective ways to improve plant height and yield of rice (Oryza sativa L.). However, the molecular mechanism of regulation is not yet fully understood. Here, we investigated the agronomic traits of diploid (Balilla-2x) and tetraploid (Balilla-4x) of japonica rice variety Balilla. Compared with Balilla-2x, Balilla-4x exhibited significantly increased plant height, spike length and yield per plant. RNA-seq analysis of the leaves of Balilla-2x and Balilla-4x was performed and the results showed that the expression levels of yield related genes (e.g., STH1, OsYUC9, and OsDEP1) were significantly upregulated in Balilla-4x rice plants, these genes are related to plant height and panicle development. These results indicated that polyploidization changed the expression of genes related to agronomic traits such as plant height and spike length, thereby increasing rice yield. This study provides a further basis for understanding the yield of rice after polyploidization, and can serve as a new theoretical reference for breeding high-yielding rice varieties achieved.
2024-01-30 | GSE254291 | GEO
Project description:Plant height is a critical constituent of plant architecture. Rice (Oryza sativa) plants have the potential to undergo rapid internodal elongation, which determines plant height. A number of physiological studies have proved that gibberellin is involved in internode elongation. Leucine-rich repeat receptor-like kinases (LRR-RLKs) are the largest subfamily of transmembrane receptor-like kinases in plants. Plant LRR-RLKs play important functions in mediating a variety of cellular processes and regulating responses to environmental signals. LRK1, a PSK receptor homolog, is a member of the LRR-RLK family. In the present study, differences in ectopic expression of LRK1 were consistent with extent of rice internode elongation. Analyses of gene expression demonstrated that LRK1 restricts gibberellin responsiveness during the internode elongation process by down-regulation of the gibberellin biosynthetic gene, ent-KAURENE OXIDASE (OsKO2). Leaf tissues of 6-week-old LRK1 060615 transgenic rice and control 9311 rice (10 plants each) were selected.
2012-02-12 | E-GEOD-35729 | biostudies-arrayexpress
Project description:Plant height is a critical constituent of plant architecture. Rice (Oryza sativa) plants have the potential to undergo rapid internodal elongation, which determines plant height. A number of physiological studies have proved that gibberellin is involved in internode elongation. Leucine-rich repeat receptor-like kinases (LRR-RLKs) are the largest subfamily of transmembrane receptor-like kinases in plants. Plant LRR-RLKs play important functions in mediating a variety of cellular processes and regulating responses to environmental signals. LRK1, a PSK receptor homolog, is a member of the LRR-RLK family. In the present study, differences in ectopic expression of LRK1 were consistent with extent of rice internode elongation. Analyses of gene expression demonstrated that LRK1 restricts gibberellin responsiveness during the internode elongation process by down-regulation of the gibberellin biosynthetic gene, ent-KAURENE OXIDASE (OsKO2).
2012-02-12 | GSE35729 | GEO
Project description:Plant-specific growth-regulating factors (GRFs) participate in multiple central developmental processes including root and leaf development, flower and seed formation, plant senescence, and tolerance to stress. While the role of the miRNA-GRFs regulatory module in determining gross morphology, which is one of the most important agronomic traits for crops, have not been comprehensively unraveled yet. Here, we reported that OsGRF7, a target of miR396e and co-activated with OsGIFs, is essential for determining plant architecture in rice. Overexpression of OsGRF7 leads to decreased tiller number, leaf length and leaf angle, reduced plant height and increased grain size, which are mediated by shortened cell length and disordered cell arrangement. Further analyses indicate that OsGRF7 binds the ACRGDA motif in promoters of OsNSP2, OsGASR1 and OsCYP714B1, OsCga1 and OsARF12, which are involved in the synthesis of strigolactones, gibberellins and cytokinins or related to auxin signaling pathway. Our findings establish OsGRF7 as a crucial component in the miR396-OsGRFs/OsGIFs-plant hormone regulatory network that controls rice growth and plant architecture.This dataset records the profile of the binding peaks of OsGRF7 with GFP antibody in 35S:GRF7-GFP overexpression lines.
2020-04-19 | GSE109800 | GEO
Project description:<p>Sustainable agriculture requires locally adapted varieties that produce nutritious food with limited agricultural inputs. Genome engineering represents a viable approach to develop cultivars that fulfill these criteria. For example, the red Hassawi rice, a native landrace of Saudi Arabia, tolerates local drought and high-salinity conditions and produces grain with diverse health-promoting phytochemicals. However, Hassawi has a long growth cycle, high cultivation costs, low productivity, and susceptibility to lodging. Here, to improve these undesirable traits via genome editing, we established efficient regeneration and Agrobacterium-mediated transformation protocols for Hassawi. In addition, we generated the first high-quality reference genome and targeted the key flowering repressor gene, Hd4, thus shortening the plant's lifecycle and height. Using CRISPR/Cas9 multiplexing, we simultaneously disrupted negative regulators of flowering time (Hd2, Hd4, and Hd5), grain size (GS3), grain number (GN1a), and plant height (Sd1). The resulting homozygous mutant lines flowered extremely early (~56 days) and had shorter stems (approximately 107 cm), longer grains (by 5.1%), and more grains per plant (by 50.2%), thereby enhancing overall productivity. Furthermore, the awns of grains were 86.4% shorter compared to unedited plants. Moreover, the modified rice grain displayed improved nutritional attributes. As a result, the modified Hassawi rice combines several desirable traits that can incentivize large-scale cultivation and reduce malnutrition.</p>
2023-12-14 | MTBLS864 | MetaboLights
Project description:Plant-specific growth-regulating factors (GRFs) participate in multiple central developmental processes including root and leaf development, flower and seed formation, plant senescence, and tolerance to stress. While the role of the miRNA-GRFs regulatory module in determining gross morphology, which is one of the most important agronomic traits for crops, have not been comprehensively unraveled yet. Here, we reported that OsGRF7, a target of miR396e and co-activated with OsGIFs, is essential for determining plant architecture in rice. Overexpression of OsGRF7 leads to decreased tiller number, leaf length and leaf angle, reduced plant height and increased grain size, which are mediated by shortened cell length and disordered cell arrangement. Further analyses indicate that OsGRF7 binds the ACRGDA motif in promoters of OsNSP2, OsGASR1 and OsCYP714B1, OsCga1 and OsARF12, which are involved in the synthesis of strigolactones, gibberellins and cytokinins or related to auxin signaling pathway. Our findings establish OsGRF7 as a crucial component in the miR396-OsGRFs/OsGIFs-plant hormone regulatory network that controls rice growth and plant architecture.This dataset records the differential expressed genes between GRF7OE and WT plants.
2020-04-19 | GSE109801 | GEO
Project description:By performing QTL mapping using 82 backcross inbred lines (BILs) of the Koshihikari (japonica) and Habataki (indica) cultivars for the rice initial growth, we identified two QTLs, qEPD1 and qEPD2, responsible for modulating plant height and/or leaf sheath length. To narrow down the number of candidate genes of each QTL, we conducted transcriptional profiling using RNAs isolated from the vegetative stem of Koshihikari and its two substituted lines (SL) with the Habataki qEPD1 or qEPD2 allele. Expression profiling with the rice 44K-Agilent microarray (Agilent-028517) was conducted using RNAs extracted from the 30-day-old vegetative stem of the corresponding lines. Each dataset was obtained from three biological replicates.
2012-03-31 | E-GEOD-35762 | biostudies-arrayexpress