Gene Details:

• Gene ID: TraesCS4B02G043100
• Gene Symbol: Rht-B1
• Gene Name: Reduced height-1
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• This reduced response to gibberellin is conferred by mutant dwarfing alleles at one of two Reduced height-1 (Rht-B1 and Rht-D1) loci.
• Here we show that Rht-B1/Rht-D1 and maize dwarf-8 (d8) are orthologues of the Arabidopsis Gibberellin Insensitive (GAI) gene. These genes encode proteins that resemble nuclear transcription factors and contain an SH2-like domain, indicating that phosphotyrosine may participate in gibberellin signalling.
• Transgenic rice plants containing a mutant GAI allele give reduced responses to gibberellin and are dwarfed, indicating that mutant GAI orthologues ( Rht-B1/Rht-D1) could be used to increase yield in a wide range of crop species.
• Two open reading frames of Rht-B1b acting as brake and throttle contributed to wheat Green Revolution.
• Specifically, phosphorylation by GSK3 may enhance the activity and stability of Rht-B1b, allowing it to inhibit the activities of its target transcription factors.

Function-related keywords:

• gibberellin ,  yield ,  dwarf ,  height

Literature:

• ‘Green revolution’ genes encode mutant gibberellin response modulators.   DOI:  10.1038/22307 ;  PMID:  10421366
• Two open reading frames of Rht-B1b acting as brake and throttle contributed to wheat Green Revolution.   DOI:  10.1093/plphys/kiad636 ;  PMID:  38051974
• GSK3 phosphorylates and regulates the Green Revolution protein Rht-B1b to reduce plant height in wheat.   DOI:  10.1093/plcell/koad090 ;  PMID:  36945740

Related News:

Gene Resources:

• NCBI ID: 123090825
• UniProt accessions: G9DDS0

Sequences: