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WGS Bgt Europe+

ABSTRACT: Population genomics and molecular epidemiology of wheat powdery mildew in Europe

PROVIDER: PRJEB75381 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR12982984_1.fastq.gz	Fastqsanger.gz
	ERR12982984_2.fastq.gz	Fastqsanger.gz
	ERR13762800_1.fastq.gz	Fastqsanger.gz
	ERR13762800_2.fastq.gz	Fastqsanger.gz
	ERR13762900_1.fastq.gz	Fastqsanger.gz

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Project description:To test whether non-coding RNAs play roles in regulating response to powdery mildew infection and heat stress in wheat, by using Solexa high-throughput sequencing and computational analysis and experimental approach we cloned the small RNAs and identified 125 putative long npcRNAs from wheat leaves infected by preponderant physiological strain Erysiphe graminis f. sp. tritici (Egt) or by heat stress treatment. Among long non-coding RNAs, some were precursors of small RNAs such as microRNAs and siRNAs, two long npcRNAs were identified as signal recognition particle (SRP) 7S RNA variants, and three were characterized as U3 snoRNAs. Wheat long npcRNAs showed tissue dependent expression patterns and were responsive to powdery mildew infection and heat stress.

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Expression data from wheat cultivars

Project description:To identify genes involved in susceptibility, genechip hybridization experiments were performed in order to examine genes differentially expressed upon inoculation of resistant and susceptible wheat cultivars with powdery mildew. Some genes were identified which were just expressed in the susceptible host both after mock-inoculation and pathogen infection. Also, a total of 2693 transcripts were differentially expressed (fold change≥2) in Yumai 13 in response to powdery mildew as compared to itself, comprising 1464 and 1229 up- and down-regulated genes respectively. Seven-day-old wheat seedlings of susceptible cultivar Yumai 13, two resistant cultivars HY and CYC were inoculated with powdery mildew and harvested at 0, 24, 48 hpi for RNA extraction and hybridization on Affymetrix microarrays. We sought to screen some genes which have very high expression in Yumai 13, but not in CYC and HY by pairwise comparation.

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