International Database for Barley Genes and Barley Genetic Stocks

BGS 274, Breviaristatum-x, ari-x

BGN  43:124
Stock number: BGS 274
Locus name: Breviaristatum-x
Locus symbol: ari-x

Previous nomenclature and gene symbolization:

Breviaristatum-22 = ari-22 (3).


Monofactorial recessive (2).
Located in chromosome 6H (1); ari-x.22 is associated with SNP markers 1_0061 to 2_0379 (positions 70.15 to 163.56 cM) in 6H bins 05 to 10 of the Bowman backcross-derived line BW030 (1).


Awns of ari-x.22 plants about 1/2 normal length and are curled (3, 4). Compared to Bowman, plants of the Bowman backcross-derived line for ari-x.22, BW030, were 10 to 15% shorter and had awns that were 1/2 to 2/3 as long and slightly twisted. Awn barbs were slightly more prominent than those of Bowman. BW030 had kernels that were slightly smaller than those of Bowman and weighted less, about 4.7 vs. 5.8 mg. Grain yields of BW030 were 1/2 to 3/4 those of Bowman and test weights were slightly lower (2).

Origin of mutant:

An X-ray induced mutant in Bonus (NGB 14657, PI 189763) (3, 4).

Mutational events:

ari-x.22 (NGB 115870) in Bonus (NGB 14657, PI 189763) (4).

Mutant used for description and seed stocks:

ari-x.22 (NGB 115870) in Bonus; ari-x.22 in Bowman (PI 483237)*5 (BW030, NGB 20438).


1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendramin, M. Morgante, N. Stein, and R. Waugh. 2011. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.

2. Franckowiak, J.D. (Unpublished).

3. Kucera, J., U. Lundqvist, and Å. Gustafsson. 1975. Inheritance of breviaristatum mutants in barley. Hereditas 80:263-278.

4. Lundqvist, U. (Unpublished).


U. Lundqvist and J.D. Franckowiak. 2013. Barley Genet. Newsl. 43:124.