Gene Details:

• MSU gene ID: LOC_Os03g04920
• RAPdb gene ID: Os03g0142800
• Gene Symbol: OsMRP5
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Seed-specific silencing of OsMRP5 reduces seed phytic acid and weight in rice.
• The OsMRP5 gene, of which mutations are known to reduce seed PA as well as seed yield and viability, was down-regulated specifically in rice seeds by using an artificial microRNA driven by the rice seed specific promoter Ole18.
• Put together, the present study demonstrated that seed specific silencing of OsMRP5 could significantly reduce the PA content and increase Pi levels in seeds; however, it also significantly lowers seed weight in rice.
• OsMRP5 is expressed in both vegetative tissues and developing seeds, and the two mutations do not change the level of RNA transcription.
• A T-DNA insertion line, 4A-02500, in which OsMRP5 was disrupted, also showed the same high inorganic phosphorus phenotype as Os-lpa-XS110-3 and appeared to be homozygous lethal.

Function-related keywords:

• seed ,  yield ,  seed-weight ,  Pi ,  pi ,  vegetative ,  phosphorus

Literature:

• Seed-specific silencing of OsMRP5 reduces seed phytic acid and weight in rice .  DOI:  10.1007/s11248-014-9792-1 ;  PMID:  24648215
• Mutations of the multi-drug resistance-associated protein ABC transporter gene 5 result in reduction of phytic acid in rice seeds .  DOI:  10.1007/s00122-009-1018-1 ;  PMID:  19370321
• Phytic Acid Contents and Metabolite Profiles of Progenies from Crossing Low Phytic Acid OsMIK and OsMRP5 Rice (Oryza sativa L.) Mutants .  DOI:  10.1021/acs.jafc.9b05098 ;  PMID:  31566383

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: