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RNA-seq analysis of NIL-GAF1 and NIL-gaf1 grains of 15 DAF at filling stage

ABSTRACT: RNA-seq analysis of NIL-GAF1 and NIL-gaf1 grains of 15 DAF at filling stage

PROVIDER: PRJNA627386 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11587858_1.fastq.gz	Fastqsanger.gz
	SRR11587858_2.fastq.gz	Fastqsanger.gz
	SRR11587859_1.fastq.gz	Fastqsanger.gz
	SRR11587859_2.fastq.gz	Fastqsanger.gz
	SRR11587860_1.fastq.gz	Fastqsanger.gz

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RNA-seq analysis of NIL-GAF1 and NIL-gaf1 grains of 15 DAF at filling stage

Project description:Favorable grain filling ability is crucial for seed development and plant yield1, with less fertilizer applying is the most urgent goals to meet the growing demands of green and safe food. However, the balance mechanism between grain filling and nutrient elements is still unclear so far. Here, we describe a gene GAF1, specially expressed in endosperm aleurone layer, encoding a phosphate transporter, positively controls rice grain filling and seed development and also contributes to phosphate balance was mapped in our study. To study the regulation pattern of GAF1, we performed the RNA-seq analysis of NIL-GAF1 and NIL-gaf1 at middle grain filling stage in seeds. The data shows that many pathways related to starch and sugar metabolism were enriched, and many starch synthesis related genes and phosphate response genes were up-regulated or down-regulated. These data further support that seed specific expressed GAF1 plays a key role in regulating both phosphate homeostasis and seed development. More importantly, overexpression of GAF1 can significantly improve grain filling and thus yield enhanced plant production in field.

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Project description:Heat stress is one of the major abiotic stress factor that affects wheat yield. Especially, heat stress during grain filling affects grain yield besides reduced grain quality. So, in our present study, three genotypes with varied levels of tolerance to heat stress were chosen. They were subjected to heat stress at two stages for three days viz., early (11-14days-post-anthesis) and late (27-30dpa) grain filling independently under controlled conditions. At 14 and 30dpa, the spikes were harvested from control and stress conditions from all the three genotypes, grains were isolated and pulverized. Hence pulverized tissues are used for RNA extraction and further for transcriptome sequencing using HiSeq 4000. Data were analyzed to identify the genes involved in imparting heat stress tolerance.

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