Gene Details:

• MSU gene ID: LOC_Os04g32510
• RAPdb gene ID: Os04g0396500
• Gene Symbol: Gnp4 LAX2
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• In addition, the Gnp4 and Lax1-1 double mutant showed dramatically reduced secondary branches and spikelets in panicle at reproductive stage, and tillers at vegetative stage.
• Fine Mapping and Cloning of the Grain Number Per-Panicle Gene (Gnp4) on Chromosome 4 in Rice (Oryza sativa L.).
• LAX2 regulates the branching of the aboveground parts of a rice plant throughout plant development, except for the primary branch in the panicle.
• The LAX2 mutant is similar to lax panicle1 (lax1) in that it lacks an AM in most of the lateral branching of the panicle and has a reduced number of AMs at the vegetative stage.
• The lax1 LAX2 double mutant synergistically enhances the reduced-branching phenotype, indicating the presence of multiple pathways for branching.
• In this study, we identified a natural mutant, Gnp4, lack of lateral spikelet on the secondary branches in the field condition.
• Here, we characterized the rice (Oryza sativa) lax panicle2 (LAX2) mutant, which has altered AM formation.

Function-related keywords:

• reproductive ,  grain-number ,  vegetative ,  branching ,  grain ,  tiller ,  spikelet ,  panicle

Literature:

• Fine Mapping and Cloning of the Grain Number Per-Panicle Gene (Gnp4) on Chromosome 4 in Rice (Oryza sativa L.) .  DOI:  10.1016/s1671-2927(11)60182-x
• LAX PANICLE2 of rice encodes a novel nuclear protein and regulates the formation of axillary meristems .  DOI:  10.1105/tpc.111.088765 ;  PMID:  21963665
• Gnp4/LAX2, a RAWUL protein, interferes with the OsIAA3-OsARF25 interaction to regulate grain length via the auxin signaling pathway in rice .  DOI:  10.1093/jxb/ery256 ;  PMID:  30295905

Related News:

Gene Resources:

• NCBI ID: AB669025
• UniProt accessions:

Sequences: