The vrs1 (Hordeum) Gene
Gene Classes : Intermedium spike, Six-rowed spike, Awnless lateral floret


Vrs1 normal phenotype (dominant)
vrs1 mutant phenotype (recessive)

Description:
Alleles at this complex locus modify development of the cultivars and produces well-developed lateral spikelets. The lemma awn of lateral spikelets will vary from 3/4 to nearly as long as those of central spikelets, depending upon alleles present at other loci. The Vrs1.b allele (V gene, distichon) is present in many two-rowed cultivars and reduces lateral spikelets to sterile bracts with a rounded tip.
Description courtesy of the Barley Genetics Stocks AceDB Database

Links:
Barley Genetics Stocks AceDB Database
GrainGenes Gene Record

References
J.D. Franckowiak, U. Lundqvist, and T. Konishi (1997) New and revised names for barley genes.  Barley Genetics Newsletter. Volume 26

Barley Genetic Stock Description: Stock number: BGS 6