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RNA-seq analysis in progeny leaves on rice seed treatd with heat

ABSTRACT: RNA-seq analysis in progeny leaves on rice seed treatd with heat

PROVIDER: PRJNA902277 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22309775_1.fastq.gz	Fastqsanger.gz
	SRR22309775_2.fastq.gz	Fastqsanger.gz
	SRR22309776_1.fastq.gz	Fastqsanger.gz
	SRR22309776_2.fastq.gz	Fastqsanger.gz
	SRR22309777_1.fastq.gz	Fastqsanger.gz

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RNA-seq analysis in progeny leaves on rice seed treatd with heat

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Project description:Rice Seed Macrogenome Raw sequence reads

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A VEL3 histone deacetylase complex establishes a maternal epigenetic state controlling progeny seed dormancy

Project description:Mother plants play an important role in the control of dormancy and dispersal characters of their progeny. In Arabidopsis seed dormancy is imposed by the embryo-surrounding tissues of the endosperm and seed coat. Here we show that the VERNALIZATION5/VIN3-LIKE 3 (VEL3) gene maintains maternal control over progeny seed dormancy by establishing an epigenetic state early in endosperm development that primes the depth of primary seed dormancy later established during seed maturation. VEL3 relocates MSI1 to the nucleolus and associates with other components of the histone deacetylase complex (HDAC). Furthermore VEL3 preferentially associates with pericentromeric chromatin and is required for deacetylation and H3K27me3 deposition and is required for gene repression via PRC2 and HDAC at pericentromeric regions established in the central cell. Interestingly, the epigenetic state established by the maternal VEL3 is retained trans-generationally in mature seeds, and controls seed dormancy in part through the repression of programmed cell death-associated gene ORE1. Our data demonstrates a novel mechanism by which maternal control of progeny seed physiology persists post-shedding, maintaining parental control of seed behaviour.

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