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ABSTRACT: Mutation Accumulation in Dormancy

PROVIDER: PRJNA525711 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8674660_1.fastq.gz	Fastqsanger.gz
	SRR8674660_2.fastq.gz	Fastqsanger.gz
	SRR8674670_1.fastq.gz	Fastqsanger.gz
	SRR8674670_2.fastq.gz	Fastqsanger.gz
	SRR8674680_1.fastq.gz	Fastqsanger.gz

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SCL15 is a critical regulator for plant development, germination, seed dormancy and seed vigor in Arabidopsis thaliana

Project description:Seed maturation, dormancy and germination are distinct physiological processes. Transition from maturation to dormancy, and from dormancy into germination are not only critical developmental phases in the plant life cycle but are also important agricultural traits. These developmental processes and their phase transitions are fine determined and coordinately regulated by genetic makeup and environmental cues. SCARECROW-LIKE15 (SCL15) has been demonstrated to be essential for repressing the seed maturation programme in vegetative tissues (Gao et al., Nat Commun, 2015, 6:7243). Here we report that SCL15 is also important for seed dormancy maintenance, germination timing and seed vigor performance based on the effects of SCL15 mutation on plant germination, growth and reproduction when compared with wild type Arabidopsis and over-expression lines 35S:SCL15 and Napin:SCL15. Seed dormancy is enhanced by the mutation of SCL15 in a GA signaling dependent way, indicating that SCL15 plays a negative role for primary dormancy release. Seed germination is positively regulated by SCL15 through interaction with ABA, GA and auxin signaling. SCL15 acts as positive regulator of seed vigor and effect of SCL15 mRNA abundance on seed reserve accumulation and seed development during late embryogenesis may contribute to the seed vigor performance.

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