OsIAA23

• Symbol: OsIAA23
• MSU: LOC_Os06g39590
• RAPdb: Os06g0597000

• OsIAA23-mediated auxin signaling defines postembryonic maintenance of QC in rice, 2011, Plant J.
• Different knockout genotypes of OsIAA23 in rice using CRISPR/Cas9 generating different phenotypes., 2019, Plant Mol Biol.

Genbank accession number

• Expression of OsIAA23 is specific to the QC of the root tip during the development of primary, lateral and crown roots
• Consistent with OsIAA23 expression in the QC, the auxin signaling marked by DR5p::GUS (ss-glucuronidase) was absent in the QC region of Osiaa23
• These results indicate that the maintenance of the QC is dependent on OsIAA23-mediated auxin signaling in the QC
• OsIAA23-mediated auxin signaling defines postembryonic maintenance of QC in rice
• The mutant is characterized by a loss of QC identity during postembryonic development, and the displayed defects result from a stabilizing mutation in domain II of OsIAA23 (Os06g39590)
• Transgenic rice plants harboring Osiaa23 under the control of the QHB promoter mimic partially the defects of Osiaa23
• In rice, the gene OsIAA23 (Os06t0597000) is known to affect development of roots and shoots, but previous knockouts in OsIAA23 have been sterile and difficult for research continuously