Gene Details:

• Gene ID: TraesCS4A02G002600
• Gene Symbol: SVP3-4A BM1-4A
• Gene Name: SHORT VEGETATIVE PHASE 3
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• MADS-box genes VRN1 and FUL2 (SQUAMOSA-clade) play critical and redundant roles in wheat spike and spikelet development, where they act as repressors of MADS-box genes of the SHORT VEGETATIVE PHASE (SVP) clade (VRT2, SVP1 and SVP3).
• Here, we show that wheat vrt2 svp1 mutants are late flowering, have shorter stems, increased number of spikelets per spike and unusual axillary inflorescences in nodes of the elongating stem.
• Constitutive expression of VRT2 resulted in leafy glumes and lemmas, reversion of basal spikelets to spikes, and down-regulation of MADS-genes involved in floral development.
• Moreover, constitutive expression of VRT2 enhanced spikelet defects of ful2, whereas vrt2 reduced vegetative characteristics in the spikelets of vrn1 ful2 mutants heterozygous for VRN-A1.
• These SVP-SQUAMOSA genetic interactions were paralleled by physical interactions among their encoded proteins. SVP proteins were able to reduce SQUAMOSA-SEPALLATA interactions in yeast-three-hybrid experiments.

Function-related keywords:

• stem ,  development ,  spikelet ,  stems ,  vegetative ,  floral ,  spikelet-number ,  spikelet-development ,  flowering ,  spike

Literature:

• Interactions between SQUAMOSA and SHORT VEGETATIVE PHASE MADS-box proteins regulate meristem transitions during wheat spike development.   DOI:  10.1093/plcell/koab243 ;  PMID:  34726755
• Interactions Between SQUAMOSA and SVP MADS-box Proteins Regulate Meristem Transitions During Wheat Spike Development   DOI:  10.1101/2020.12.01.405779 ;  PMID:  

Related News:

Gene Resources:

• NCBI ID: 123084680
• UniProt accessions: A7YJG5

Sequences: