Gene Details:

• MSU gene ID: LOC_Os07g06620
• RAPdb gene ID: Os07g0160100
• Gene Symbol: OsYABBY1 OsYAB1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Unlike the Arabidopsis YABBY genes, however, the OsYAB1 gene does not show polar expression pattern in the tissues of floral organs.
• Our transgenic plants that ectopically expressed OsYAB1 were normal during the vegetative growth period, but then showed abnormalities in their floral structures.
• RNA gel-blot analysis showed that the OsYAB1 gene is preferentially expressed in flowers.
• OsYABBY1 is expressed in putative precursor cells of both the mestome sheath in the large vascular bundle and the abaxial sclerenchyma in the leaves.
• In the flower, OsYABBY1 is specifically expressed in the palea and lemma from their inception, and is confined to several cell layers of these organs in the later developmental stages.
• These results suggest that OsYAB1 plays a major role in meristem development and maintenance of stamens and carpels, rather than in determining polarity.
• Ectopic expression of OsYAB1 causes extra stamens and carpels in rice.

Function-related keywords:

• floral ,  flower ,  vascular-bundle ,  lemma ,  sheath ,  growth ,  meristem ,  vegetative ,  palea ,  stamen

Literature:

• Molecular characterization the YABBY gene family in Oryza sativa and expression analysis of OsYABBY1 .  DOI:  10.1007/s00438-006-0202-0 ;  PMID:  17216490
• Ectopic expression of OsYAB1 causes extra stamens and carpels in rice .  DOI:  10.1007/s11103-004-2648-y ;  PMID:  15604733
• Functional analysis of rice HOMEOBOX4 (Oshox4) gene reveals a negative function in gibberellin responses .  DOI:  10.1007/s11103-007-9270-8 ;  PMID:  18049796
• The rice YABBY1 gene is involved in the feedback regulation of gibberellin metabolism .  DOI:  10.1104/pp.107.096586 ;  PMID:  17369428

Related News:

Gene Resources:

• NCBI ID: AF098752
• UniProt accessions:

Sequences: