Gene Details:

• Gene ID: TraesCS7A02G175200
• Gene Symbol: VRT-A2
• Gene Name: VEGETATIVE TO REPRODUCTIVE TRANSITION 2
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• Ectopic expression of Triticum polonicum VRT-A2 underlies elongated glumes and grains in hexaploid wheat in a dosage-dependent manner.
• Expression levels of VRT-A2 affect spike, glume, grain, and floral organ length in a dosage-dependent manner.
• Ectopic expression of VRT-A2 leads to phenotypic effects in a dosage-dependent manner.
• Transgenic lines of hexaploid wheat carrying the T. polonicum VRT-A2 allele show that expression levels of VRT-A2 are highly correlated with spike, glume, grain, and floral organ length.
• Based on multi-year field trials and transgenic lines, we show that higher expression of VRT-A2 in the basal sections of the spike is associated with increased numbers of rudimentary basal spikelets.
• The increased number of rudimentary basal spikelets (RBSs) due to VRT-A2 misexpression supports the hypothesis that high expression levels of SVPs in the basal section delays spikelet establishment, leading to their rudimentary shape in the mature spike.

Function-related keywords:

• grain ,  grain-length ,  floral ,  floral-organ ,  spike

Literature:

• Ectopic expression of Triticum polonicum VRT-A2 underlies elongated glumes and grains in hexaploid wheat in a dosage-dependent manner.   DOI:  10.1093/plcell/koab119 ;  PMID:  34009390
• High expression of the MADS-box gene VRT2 increases the number of rudimentary basal spikelets in wheat.   DOI:  10.1093/plcell/koab119 ;  PMID:  35377414

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions: A9J209

Sequences: