Gene Details:

• Gene ID: Zm00001eb158550
• Gene Symbol: SPI1
• Gene Name: sparse inflorescence1
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• We identify and characterize a mutant, sparse inflorescence1 (SPI1), which has defects in the initiation of axillary meristems and lateral organs during vegetative and inflorescence development in maize.
• Positional cloning shows that SPI1 encodes a flavin monooxygenase similar to the YUCCA (YUC) genes of Arabidopsis, which are involved in local auxin biosynthesis in various plant tissues
• SPI1 belongs to a monocot-specific clade, within which the role of individual YUC genes has diversified.
• SPI1,a YUCCA-like gene related to auxin biosynthesis, regulates maize height and inflorescence development.
• Suggest that SPI1 has evolved a dominant role in auxin biosynthesis that is essential for normal maize inflorescence development.
• SPI1 Expression Is Localized in Proximity to Newly Emerging Primordia and Axillary Meristems.

Function-related keywords:

• development ,  auxin ,  plant-development ,  vegetative ,  inflorescence ,  auxin-biosynthesis ,  height ,  plant-height ,  inflorescence-development

Literature:

• sparse inflorescence1 encodes a monocot-specific YUCCA-like gene required for vegetative and reproductive development in maize.   DOI:  10.1073/pnas.0805596105 ;  PMID:  18799737
• Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond.   DOI:  10.1111/jipb.13603 ;  PMID:  38131117
• The power of classic maize mutants: Driving forward our fundamental understanding of plants.   DOI:  10.1093/plcell/koac081 ;  PMID:  35274692

Related News:

Gene Resources:

• NCBI ID: 100280444
• UniProt accessions: B6D9L5

Sequences:

Source: Genetic information comes from the article