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ABSTRACT: QTL-seq of rice

PROVIDER: PRJNA1059655 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR27393491_1.fastq.gz	Fastqsanger.gz
	SRR27393491_2.fastq.gz	Fastqsanger.gz
	SRR27393492_1.fastq.gz	Fastqsanger.gz
	SRR27393492_2.fastq.gz	Fastqsanger.gz
	SRR27393493_1.fastq.gz	Fastqsanger.gz

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The COG1-OsSERL2 complex senses cold to trigger signaling network for chilling tolerance in japonica rice

Project description:Improvement of chilling tolerance is a key strategy to face potential menace from abnormal temperature in rice production, which depends on the signaling network triggered by receptors. However, little is known about the QTL genes encoding membrane complexes for sensing cold. Here, Chilling-tolerance in Gengdao/japonica rice 1 (COG1) was isolated from a chromosome segment substitution line containing a QTL (qCS11-jap) for chilling sensitivity. The major gene COG1 was found to confer chilling tolerance in japonica rice. In natural rice populations, only the haplogroup1 encoded a functional COG1. Evolutionary analysis showed that COG1 originated from Chinese O. Rufipogon and was fixed in japonica rice during domestication. COG1, a membrane-localized LRR-RLP, targeted and activated the kinase OsSERL2 in a cold-induced manner, promoting chilling tolerance. Furthermore, the cold signal transmitted by COG1-OsSERL2 activates OsMAPK3 in the cytoplasm. Our findings reveal a cold-sensing complex, which mediates signaling network for the chilling defense in rice.

2023-06-18 | PXD042294 | Pride

Proteome analysis of contrasting rice genotypes under phosphorus-starvation stress

Project description:This study aims to deal with a comparative proteome analysis of shoot and root tissues of contrasting phosphorus (P) responsive rice genotypes (Pusa-44 and its near-isogenic line (NIL)-23 harboring Pup1 QTL). Proteins were isolated from shoot and root tissues collected from 45-day-old rice plants grown hydroponically in PusaRicH medium with P (16ppm, +P) or without P (0 ppm, -P) under controlled environmental conditions. Following protein quantification using the Bradford method, and quality check using 1D SDS-PAGE, trypsin was used for in-solution digestion and Nano ACQUITY UPLC-MS/MS was used to separate and identify peptides. This study aimed at deciphering the molecular aspect of Pup1 QTL in P-starvation stress tolerance in rice.

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Project description:QTL-seq for flowering time in rice

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Expression data from rice stem bases in two different genotypes

Project description:Crown roots differentiate from stem base in rice. In this study, we followed gene expression in stem base of two Vietnamese indica rice varieties that belong to two haplotypes defining a QTL associated with crown root number. We used microarrays to look for the gene differentially expressed in stem base of two varieties.

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Early proteomic responses in shoot and root of FL478 under salinity stress

Project description:Climate change is affecting crop production due to soil salinization and water scarcity, and is predicted to worsen in the coming years. Rice is a major staple food and the most salt-sensitive cereal. High salinity in the soil triggers several adaptive responses in rice to cope with osmotic and ionic stress at the physiological, cellular and molecular levels. A major QTL for salinity tolerance, named Saltol, is present on chromosome 1 of Indian rice landrace varieties such as Pokkali and Nona Bokra. In this study, we characterized the physiological and early proteomic responses to salinity in FL478, an inbred rice line harboring the Saltol region. For this, plantlets were cultured in hydroponic cultures with 100 mM NaCl and evaluated at 6, 24 and 48h. At the physiological level, salinity significantly reduced shoot length after 48 h, whereas root length significantly increased. Moreover, the Na+/K+ ratio was maintained at lower levels in the shoots compared to the roots FL478 plantlets. On the other hand, roots showed a faster and more coordinated proteomic response than shoots, which was evident from only 6h of treatment. These responses were markedly related with transcription- and translation-related proteins. Moreover, roots exhibited a higher accumulation of stress-related proteins in response to salinity treatment, like peroxidase and SalT, which are both present in the Saltol QTL. Both, physiological and proteomic response, showed that roots respond in a highly adaptive manner to salinity stress compared to shoots, which suggests that this tissue is critical to the tolerance observed in varieties harbouring the Saltol region.

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Rice stem at early stage growth: Control vs.Chromosome segment substitution lines (SLs) from a cross the Koshihikari (japonica) and Habataki (indica)

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Project description:QTL-Seq

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Gene expression data of OsHMGB707 overexpression and RNAi transgenic rice plants under normal conditions

Project description:High mobility group (HMG) proteins play an important role in regulation of gene transcription through modulate the structure of DNA. In this study, OsHMGB707, a HMG gene localized in rice drought resistance QTL interval, was isolated and the function on rice stress resistance was identified. Overexpression of OsHMGB707 significantly enhanced the drought resistance of the transgenic rice plants, whereas the OsHMGB707-RNAi transgenic rice plants exhibited slightly decrease in drought stress tolerance. To search the downstream genes regulated by OsHMGB707, we performed microarray analysis of the OsHMGB707-overexpressing, OsHMGB707-RNAi and wild-type plants under both normal conditions using Affymetrix Rice Genome Genechip. 21-day-old plants of the OsHMGB707-overexpressing line OE1, OsHMGB707-RNAi line RNAi1 as well as the wild-type plants were used in the normal condition.

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