Oryza sativa Japonica Group
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1169642 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR30946978_1.fastq.gz | Fastqsanger.gz | |||
| SRR30946978_2.fastq.gz | Fastqsanger.gz | |||
| SRR30946979_1.fastq.gz | Fastqsanger.gz | |||
| SRR30946979_2.fastq.gz | Fastqsanger.gz | |||
| SRR30946980_1.fastq.gz | Fastqsanger.gz |
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Project description:Overexpression of OsMYB103L leads to leaf rolling in transgenic rice plants. To explore the possible molecular mechanism of OsMYB103L’s effects on rice leaf development, we examined the expression profiles of OsMYB103L overexpression transgenic rice plants and wild type leaf blades using Digital Gene Expression (DGE) profiling analysis.
2016-11-13 | GSE52394 | GEO
Project description:Leaf rolling and discoloration are two chilling injury symptoms that are widely adopted as indicators for evaluation of cold tolerance at the seedling stage in rice, respectively. However, their relationship has not been well investigated, in particular the mechanism on how low temperature causes leaf rolling at a genome-wide level. In this study, a cold-tolerant japonica cultivar Lijiangxintuanheigu and a cold-sensitive indica cultivar Sanhuangzhan-2 were subjected to different low temperature treatments and physiological and genome-wide gene expression analysis were conducted. Our results showed that leaf rolling happened at temperatures lower than 11℃, but discoloration appeared at moderately low temperatures, such as 13℃. Chlorophyll contents of the two cultivars significantly decreased under 13℃, but didn’t change under 11℃. Contrastly, their relative water contents and the relative electrolyte leakages decreased significantly. Genome-wide gene expression profiling of LTH revealed that the calcium signaling related genes and the genes related to ABA degradation significantly changed under 11℃. Moreover, numerous genes in DREB, MYB, bZIP, NAC, Zin finger, bHLH, WRKY gene families were differently expressed. Furthermore, many aquaporin genes, the key genes in trehalose and starch synthesis were down-regulated under 11℃. These results suggest that the two chilling injury symptoms are controlled by different mechanisms. Cold-induced leaf rolling is associated with calcium and ABA signaling pathways, and subjected to regulation of multiple transcription regulators. The suppression of aquaporin genes and reduced accumulation of soluble sugars under cold stress result in reduction of water potential in cells and consequently, leaf rolling.
2019-03-30 | GSE112547 | GEO
Project description:Whole WRKY gene family transcription analysis in rice during biotic and abiotic stress.
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Project description:The 5th and 6th leaf blades of the rice Os-LBD37 overexpressor line RK16331-13 and the empty vector control line FOX3 were examined. LBD37 belongs to the plant- specific LOB- (Lateral Organ Boundary) domain family proteins first characterized in Arabidopsis. Results point towards an involvement of the rice LBD37 (OsLBD37) ortholog of Arabidopsis in nitrogen metabolism- and senescence- related processes.
2009-12-27 | GSE14647 | GEO
Project description:The 5th and 6th leaf blades of the rice Os-LBD37 overexpressor line RK16331-13 and the empty vector control line FOX3 were examined. LBD37 belongs to the plant- specific LOB- (Lateral Organ Boundary) domain family proteins first characterized in Arabidopsis. Results point towards an involvement of the rice LBD37 (OsLBD37) ortholog of Arabidopsis in nitrogen metabolism- and senescence- related processes. Hygromycin- resistant rice Os-LBD37 overexpressor and empty vector control plants were grown in hydroponic culture system. The sampling date of the leaf blades of RK16331-13 LBD37 overexpressor plants and the empty vector control was determined according to the emergence of the 8th leaf blade. Three independent hybridizations were performed for line RK16331-13 and the empty vector control line.
2009-12-27 | E-GEOD-14647 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE14646: Gene expression in aerial parts of rice-Arabidopsis Os-LBD37 FOX plants GSE14647: Gene expression in leaf blades of the rice Os-LBD37 overexpressor line RK16331-13 Refer to individual Series
2009-12-26 | E-GEOD-14663 | biostudies-arrayexpress
Project description:To comprehend the gene expression profile in rice flag leaf under high temperature, Agilent 4×44k rice oligo microarray experiments were carried out using rice flag leaf of reproductive stage at 0 min, 20 min, 60 min, 2 hr, 4 hr, and 8 hr after the treatment of 40 degree centigrade, and the significantly expressed genes mainly involved in transcriptional regulation, transport, protein binding, antioxidant, and stress response were identified. Among them, the predominant transcription factor gene families were Hsf, NAC, AP2/ERF, WRKY, MYB, and C2H2. KMC analysis discovered the time-dependent gene expression pattern under heat. The metabolism pathway analysis demonstrated that, under heat treatment, glycolysis and ubiquitin-proteasome was enhanced, and TCA, gluconeogenesis, the secondary metabolism and light-reaction in the photosystem was dramatically repressed, which revealed the great importance of maintaining primary metabolism and protein homeostasis in response to heat in rice flag leaf.
2013-09-10 | GSE45259 | GEO
Project description:In our laboratory we are interested in studying the functions of WRKY zinc finger type transcription factors. There are 74 members of this gene family in Arabidopsis. WRKY factors are key regulators of distinct plant defense responses and are involved in certain developmental programs e.g. trichome development and plant leaf senescence. We would like to determine the functions of a small sub-group (group II-a) of WRKY factors in response to bacterial infection. Our aim is to compare and contrast the gene expression profiles of 3-week-old wild type and WRKY T-DNA knockout mutants grown in a growth chamber under long day growth conditions and subsequently challenged for 6 hours with the virulent bacterial pathogen /Pseudomonas syringae/ DC3000. Experimenter name: Bekir Uelker Experimenter phone: 49-221-5062-310 Experimenter fax: 49-221-5062-353 Experimenter department: Somsissich Lab Experimenter institute: Max-Planck-Institute for Plant Breeding Research Experimenter address: Department of Plant Microbe Interactions Experimenter address: Carl-von-Linne-Weg 10 Experimenter address: Cologne Experimenter zip/postal_code: 50829 Experimenter country: Germany Keywords: genetic_modification_design
2007-01-22 | GSE6829 | GEO
Project description:Phosphate starvation/sufficient rice seedling, root or shoot Pi-starvation or Pi-sufficient stresses responsible rice genes, including previously unannotated genes were identified by Illumina mRNA-seq technology. 53 million reads from Pi-starvation or Pi-sufficient root or shoot tissues were uniquely mapped to the rice genome, and these included 40574 RAP3 transcripts in root and 39748 RAP3 transcripts in shoot. We compared our mRNA-seq expression data with that from Rice 44K oligomicroarray, and about 95.5% (root) and 95.4% (shoot) transcripts supported by the array were confirmed expression both by the array and by mRNA-seq, Moreover, 11888 (root) and 11098 (shoot) RAP genes which were not supported by array, were evidenced expression with mRNA-seq. Furthermore, we discovered 8590 (root) and 8193 (shoot) previously unannotated transcripts upon Pi-starvation and/or Pi-sufficient.
2012-01-06 | E-MTAB-4302 | biostudies-arrayexpress
Project description:The aim of this study was to characterize the tissue tolerance mechanisms of rice under salt stress. Our preliminary experiment identified a japonica rice landrace Shuzenji-kokumai (SZK), which is considered to be tissue-tolerant because it can maintain better growth than salt-sensitive rice while having a high Na+ concentration in the shoots under salt stress. These mechanisms differ from those of most salt-tolerant rice varieties, which have low Na+ concentrations in the shoots. We compared the physiological and molecular characteristics of SZK with those of FL478, a salt-tolerant variety, and Kunishi, a salt-sensitive variety. Under salt stress conditions, SZK accumulated high levels of Na+ in roots, leaf sheaths, and leaf blades, which were almost as high as those in the salt-sensitive Kunishi. Simultaneously, SZK maintained better growth and physiological status, as determined by its higher dry weight, lower electrolyte leakage ratio, and lower malondialdehyde concentration. OsNHX1 and OsNHX2 were up-regulated in the leaf sheaths of SZK, suggesting that Na+ is compartmentalized in the vacuole to avoid Na+ toxicity. In contrast, FL478 showed up-regulation of OsHKT1;5 and OsSOS1 in the roots, which exclude Na+ from the shoots. RNA-seq analysis showed that 4623 and 1998 differentially expressed genes (DEGs) were detected in the leaf sheaths and leaf blades of SZK, respectively. Among them, the HSP (heat shock protein) gene expression was highly up-regulated only in SZK, indicating that SZK protects against the protein damage caused by Na+ toxicity. Our findings suggest that SZK has atypical survival mechanisms under salt-stress conditions. These mechanisms offer potential traits for improving salt tolerance in rice.
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