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Phytophthora capsici draft genome assemblies

ABSTRACT: Draft genome of Phytophthora capsici isolates LT1534 and a pepper isolate ONT sequencing

PROVIDER: PRJEB60432 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	Phytophthora_capsici_LT1534.gff.gz	Other
	ERR11000117.fastq.gz	Fastqsanger.gz
	ERR11000118.fastq.gz	Fastqsanger.gz

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Project description:Phytophthora blight is a highly destructive soil borne disease caused by Phytophthora capsici Leonian, which seriously threatens global pepper production. Grafting is one of the important means to improve plant disease resistance and prevent soil borne diseases in vegetable production. However, the molecular mechanism by which grafting enhances the resistance of pepper to Phytophthora blight is still unclear. This study used Phytophthora capsici resistant strain ‘ZCM334’ and susceptible strain ‘Early Calwonder’ as rootstocks, and ‘Early Calwonder’ as scions for grafting. Phenotypic observation and cytological analysis showed that compared with the ‘Early Calwonder’ self rooted plants, the ‘ZCM334’ grafted plants had a later onset of disease, stronger resistance, and less damage to leaf cells, indicating that grafting can significantly improve the resistance of pepper to Phytophthora capsici. This study identified differentially expressed proteins (DEPs) in the leaves and roots of ‘ZCM334’ grafted plants and ‘Early Calwonder’ self rooted plants through proteomic analysis based on iTRAQ technology, and 478 and 349 DEPs were identified between their leaves and roots, respectively. These DEPs were mainly involved in metabolic process, cellular process, response to stimulus and catalytic activity processes. We identified and screened 12 DEPs with consistent expression trends in the leaves and roots of ‘ZCM334’ grafted plants and ‘Early Calwonder’ self rooted plants, including seven DEPs related to Phytophthora capsici resistance (CA01g31060, CA02g15780, CA02g30850, CA01g11410, CA05g12260, CA03g35150, and CA03g36980) and five proteins with unknown functions (CA01g26190, CA11g10620, CA12g02730, CA01g20890 and CA02g11340). Through qRT-PCR analysis, a significant correlation was observed between the protein and transcript levels of these 12 DEPs, and their expression characteristics were analyzed in the roots and leaves of ‘ZCM334’ grafted plants and ‘Early Calwonder’ self rooted plants at different stages (0h, 12h, 24h, and 36h) after inoculation with Phytophthora capsici. This study provides valuable information for exploring the molecular mechanisms by which grafting enhances the resistance of pepper to Phytophthora blight and the excavation of these key genes provides research ideas for studying the regulatory network of pepper resistance to Phytophthora capsici.

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Phytophthora capsici draft genome assemblies

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