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Transcriptomics during pollen development in Oryza longistaminata

ABSTRACT: transcriptomics during pollen development in Oryza longistaminata

PROVIDER: PRJNA750460 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15283632_1.fastq.gz	Fastqsanger.gz
	SRR15283632_2.fastq.gz	Fastqsanger.gz
	SRR15283633_1.fastq.gz	Fastqsanger.gz
	SRR15283633_2.fastq.gz	Fastqsanger.gz
	SRR15283634_1.fastq.gz	Fastqsanger.gz

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transcriptomics during pollen development in Oryza longistaminata

Project description:Oryza longistaminata is an African wild rice species that possesses special traits for breeding applications. Self-incompatibility is the main cause of sterility in O. longistaminata, but here we demonstrated that its pollen fertility and vitality are normal. Lipid and carbohydrate metabolism were active throughout pollen development. In this study, transcriptomics quantitative analysis was used to investigate the profiles of genes related to lipid and carbohydrate metabolism in 4-, 6- and 8.5-mm O. longistaminata spikelets before flowering. We documented cytological changes throughout important stages of anther development, including changes in reproductive cells as they formed mature pollen grains through meiosis and mitosis. RNA-seq and proteome association analysis indicated that fatty acids were converted to sucrose after the 6-mm spikelet stage, based on the abundance of most key enzymes of the glyoxylate cycle and gluconeogenesis. In conclusion, our study provides novel insights into the pollen viability of O. longistaminata at the transcriptome level, which can be used to improve the efficiency of male parent pollination in hybrid rice breeding applications.

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Quantitative proteomics during anthers development in Oryza longistaminata

Project description:Tandem mass tags (TMT)-based quantitative analysis was used to investigate the profiles of proteins related to lipid and carbohydrate metabolism in 4-, 6- and 8.5-mm O. longistaminata spikelets before flowering. O. longistaminata plants were sampled at three important stages of pollen development: 4-mm spikelet (Ls-4mm, primary sporogenous cells, Stage 4), 6-mm spikelet (Ls-6mm, microspore mother cells, Stage 6) and 8.5-mm spikelet (Ls-8.5mm, second mitosis cells, Stage 12) .

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