International Database for Barley Genes and Barley Genetic Stocks

BGS 727, Unbranched style 5, ubs5

BGN  43:222
Stock number: BGS 727
Locus name: Unbranched style 5
Locus symbol: ubs5

Previous nomenclature and gene symbolization:



Monofactorial recessive (1).
Location is unknown.


The ubs5.e plants have stigmas that are nearly devoid of stigma hairs. Seed set is somewhat reduced, but other morphological traits of ubs5.e plants are unaltered (1). Plants are female sterile, but male fertile (1). When compared to mutants at other loci associated with few stigma hairs and reduced seed set, the ubs5 mutants do not have the short awns of (unbranched style 4), ubs4 (BGS 11) mutants or glossy spikes (reduced surface wax coating of the spike) of eceriferum-yd (cer-yd, BGS 447) and eceriferum-yh (cer-yh, BGS 451) mutants.

Origin of mutant:

A fast neutron induced mutant in Harrington (1).

Mutational events:

ubs5.e (FN348, GSHO 3675) and ubs5.f (FN521, GSHO 3676) in Harrington with allelism based on phenotypic similarity (1).

Mutant used for description and seed stocks:

ubs5.e (FN348, GSHO 3675) in Harrington.


1. Kleinhofs, A. (Unpublished).


A. Kleinhofs and J.D. Franckowiak. 2013. Barley Genet. Newsl. 43:222.