OsCyb5

2015-01-20 | Categories genes | Tags growth grain seedling seed starch seed germination grain size breeding sugar seedling growth

Information
- Symbol: OsCyb5
- MSU: LOC_Os09g16920
- RAPdb: Os09g0338500
Publication
- A genome-wide association study reveals that the cytochrome b5 involved in seed reserve mobilization during seed germination in rice., 2021, Theor Appl Genet.
Genbank accession number
Key message
- Disruption of this gene in Oscyb5 mutants reduced the seed reserve mobilization and seedling growth compared with wild-type (WT) in rice
- There were no significant differences of grain size, starch, protein and total soluble sugar content in the mature grains between Oscyb5 mutants and WT
- However, the α-amylase activity in the germinating seeds of Oscyb5 mutants was significantly decreased compared to that of WT, and then, the starch and sugar mobilization and the glucose accumulation during seed germination were significantly decreased in Oscyb5 mutants
- Two elite haplotypes of OsCyb5 associated with the higher seed reserve mobilization percentage and its elite single nucleotide polymorphism variations were mainly existed in the INDICA and AUS accessions
- The natural variation of OsCyb5 contributing to seed reserve mobilization might be useful for the future rice breeding
Connection

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