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Oryza sativa Indica Group

ABSTRACT: A genetically linked pair of NLR immune receptors show contrasting patterns of evolution

PROVIDER: PRJDB12891 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR342053_1.fastq.gz	Fastqsanger.gz
	DRR342053_2.fastq.gz	Fastqsanger.gz
	DRR342054_1.fastq.gz	Fastqsanger.gz
	DRR342054_2.fastq.gz	Fastqsanger.gz
	DRR342055_1.fastq.gz	Fastqsanger.gz

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Oryza sativa

Project description:A genetically linked pair of NLR immune receptors show contrasting patterns of evolution

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Comparative analysis of PAD4 and SAG101 interactors upon activation of NLR immunity in Arabidopsis thaliana

Project description:Intracellular NLR receptors with a central nucleotide-binding domain allow plants to detect specific pathogen-secreted proteins and initiate immune signaling. A family of conserved Enhanced disease susceptibility 1 proteins with a lipase-like and the EP domain transduces the signal from activated NLRs downstream. This family includes EDS1, PAD4 and SAG101 that form mutually exclusive heterodimers EDS1-PAD4 and EDS1-SAG101. Despite sequence similarities, PAD4 and SAG101 control different aspects of NLR immune signaling. More specifically, PAD4 and SAG101 regulate resistance and cell death outputs of the NLR receptor pair RRS1-RPS4, respectively. Also, PAD4 and SAG101 genetically cooperate with distinct downstream signaling NLRs - ADR1 and NRG1. The main aim of this IP-LC/MS project is to assess whether PAD4 and SAG101 form complexes with ADR1 and NRG1 and to gain insight into mechanisms of the genetically established functional links between EDS1 family proteins and downstream signaling NLRs.

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Oryza sativa Indica Group

Project description:Drought responsive transcriptome profiling in roots of contrasting rice genotypes IR20 and Nootripathu

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Project description:Root-specific transcriptional profiling of contrasting rice genotypes in response to salinity stress

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Epigenetic regulation of antagonistic receptors confers rice blast resistance with yield balance

Project description:Crop breeding aims to balance disease resistance with yield; however, single resistance (R) genes can lead to resistance breakdown, and R gene pyramiding may affect growth fitness. Here we report that the rice Pigm locus contains a cluster of genes encoding nucleotide-binding leucine-rich repeat (NLR) receptors that confer durable resistance to the fungus Magnaporthe oryzae without yield penalty. Among these NLR receptors, PigmR confers broad-spectrum resistance, whereas PigmS competitively attenuates PigmR homodimerization to suppress resistance. PigmS expression, and thus PigmR-mediated resistance, are subjected to tight epigenetic regulation. PigmS increases seed production to counteract the yield cost induced by PigmR Therefore, our study reveals a mechanism balancing high disease resistance and yield through epigenetic regulation of paired antagonistic NLR receptors, providing a tool to develop elite crop varieties.

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Project description:Linked-pair sequencing approach

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The novel NLR-related protein NWD1 is associated with prostate cancer progression and impacts androgen receptor signaling.

Project description:Characterization of NWD1; a novel NLR-related protein and further correlate it as a putative Prostate Cancer marker. NLRs (NACHT and Leucine Rich Repeat domain containing proteins) constitute a major subfamily of innate immunity proteins mostly acting as cytosolic pattern recognition receptors (PRRs), involved in the detection of cytoplasmic pathogen-associated molecular patterns (PAMPs) and endogenous danger signals. The recognition of the signals initiates a variety of host defense pathways through the activation of NF-kappaB, stress kinases, interferon response factors (IRFs) and/or inflammatory caspases. Despite the importance in host immune response, deregulation on NLR activities has been described in a variety of maladies, including chronic inflammation and cancer predisposition. For instance, NOD1 was one of the first NLR members shown to possibly play a role in tumorigenesis, since NOD1 stimulation induces apoptosis in MCF-7 breast carcinoma cells, and NOD1-/- MCF-7 cells generate larger tumors after injection in SCID mice. Mice deficient in NLR member NLRP3, and/or its interacting partners ASC or caspase-1, are also shown to be more susceptible to colitis-associated cancer (CAC). Polymorphisms along NLR genes NOD1 and NOD2 have also been correlated with altered cancer risk. NOD1 SNPs have been associated with gastric cancer, lymphoma, ovarian, prostate, and lung cancer due to the recognition of H. pylori (etiologic agent in gastric cancer and MALT lymphoma), C. trachomatis (putative etiologic agent in ovarian cancer), P. acnes (possible causative agent in PCa) and C. pneumonia (plausible etiological agent in lung cancer) as NOD1 ligands. Particularly, NOD1 and NOD2 have been shown to be fully operative in prostate epithelial cells and, in cooperation with TLRs, may elicit immune response during PCa progression.

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