Gene Details:

• Gene ID: Zm00001eb332170
• Gene Symbol: Ms23 ms35 bhlh16 ZmRf4
• Gene Name: male sterile23
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• The bHLH transcription factors Ms23, MS32, bHLH122 and bHLH51 are involved in anther somatic cell development in turn, and play an important role in regulating the proliferation of proper tapetum cells.
• Ms23, MS32, bHLH122 and bHLH51 showed sterility after mutation of 4 transcription factors.
• The male-sterile Ms23, ms32, and bhlh122-1 mutants lack 24-nt phased secondary small interfering RNAs (phasiRNAs) and the precursor transcripts from the corresponding 24-PHAS loci, while the bhlh51-1 mutant has wild-type levels of both precursors and small RNA products.
• Multiple lines of evidence suggest that 24-nt phasiRNA biogenesis primarily occurs downstream of Ms23 and MS32, both of which directly activate Dcl5 and are required for most 24-PHAS transcription, with bHLH122 playing a distinct role in 24-PHAS transcription.

Function-related keywords:

• development ,  anther ,  sterility ,  tapetum ,  sterile ,  anther-development ,  cell-proliferation ,  male-sterility

Literature:

• A cascade of bHLH-regulated pathways programs maize anther development.   DOI:  10.1093/plcell/koac007 ;  PMID:  35018475
• A P-type pentatricopeptide repeat protein ZmRF5 promotes 5' region partial cleavages of atp6c transcripts to restore the fertility of CMS-C maize by recruiting a splicing factor.   DOI:  10.1111/pbi.14263 ;  PMID:  38073308

Related News:

• The Plant Cell | 斯坦福大学揭示玉米花药发育中bHLH调控途径的级联过程

Gene Resources:

• NCBI ID: 100283549
• UniProt accessions: B6TJC2

Sequences: