Gene Details:

• Gene ID: TraesCS7D02G339300
• Gene Symbol: TaIAA21-D
• Gene Name: Aux/IAA 21
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• Cross-sections of mutant grains revealed elongated outer pericarp cells compared to those of the wild type, where the expression of TaIAA21 was detected by in situ hybridization.
• Identified a wheat Aux/IAA gene, TaIAA21, and studied its regulatory pathway.
• TaIAA21 works as a negative regulator of grain size and weight development via the ARF25–ERFs module and is useful for yield improvement in wheat.
• TaIAA21 mutation significantly increased grain length, grain width, and grain weight.
• TaIAA21 represses TaARF25-mediated expression of TaERFs required for grain size and weight development in wheat.

Function-related keywords:

• development ,  grain ,  grain-length ,  grain-size ,  grain-yield ,  yield ,  iaa ,  grain-weight ,  pericarp ,  grain-width

Literature:

• TaIAA21 represses TaARF25-mediated expression of TaERFs required for grain size and weight development in wheat.   DOI:  10.1111/tpj.15541 ;  PMID:  34643010

Related News:

• Plant Journal | 作科所李爱丽/毛龙研究员揭示小麦籽粒发育新机制

Gene Resources:

• NCBI ID: 123164889
• UniProt accessions: A0A3B6TU02

Sequences: