Gene Details:

• MSU gene ID: LOC_Os03g50780
• RAPdb gene ID: Os03g0716200
• Gene Symbol: TIP3
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Map-based cloning demonstrated that TIP3 encodes a conserved PHD-finger protein and further study confirmed TIP3 functioned as a transcription factor with transcriptional activation activity.
• The TIP3 mutant displayed smaller and pale yellow anthers without mature pollen grains, abnormal Ubisch body morphology, no pollen wall formation as well as delayed tapetum degeneration.
• Moreover, TIP3 can physically interact with TDR which is a key component of the transcriptional cascade in regulating tapetum development and pollen wall formation.
• Taken together, our results reveal an unprecedented role of TIP3 in regulating Ubisch bodies and pollen exine formation, which presents a potential tool to manipulate male fertility for hybrid rice breeding.
• TIP3 is preferentially expressed in the tapetum and microspores during anther development.
• Furthermore, disruption of TIP3 changed the expression of several genes involved in tapetum development and degradation, biosynthesis and transport of lipid monomers of sporopollenin in TIP3 mutant.

Function-related keywords:

• transcription-factor ,  pollen ,  anther ,  development ,  map-based-cloning ,  R-protein ,  breeding ,  fertility ,  tapetum ,  anther-development ,  pollen-wall ,  pollen-exine-formation

Literature:

• TDR INTERACTING PROTEIN 3, encoding a PHD-finger transcription factor, regulates Ubisch bodies and pollen wall formation in rice .  DOI:  10.1111/tpj.14365 ;  PMID:  31021015

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: