International Database for Barley Genes and Barley Genetic Stocks

BGS 328, Breviaristatum-e, ari-e

BGN  47:120
Stock number: BGS 328
Locus name: Breviaristatum-e
Locus symbol: ari-e

Previous nomenclature and gene symbolization:

Breviaristatum-1 = ari-1 (6, 7).
Short awn 9 = lk9 (20).
Golden Promise erectoides = GPert (19)
Hordeum vulgare denso and erect panicle 1 = Hvdep1 (21).


Monofactorial recessive (6).
Located in chromosome 5HL (12, 13, 14, 15, 19); ari-e.1 is about 5.6 cM proximal from the cer-zj (eceriferum-zj) locus (17, 18); ari-e.GP is near SSR molecular marker Bmag337 (3); ari-e.GP is close to SNP marker 2_1239 (11); ari-e.1 is associated with SNP markers 2_1480 and 3_0285 (position 137.96 cM) in 5H bin 08 of the Bowman backcross-derived line BW042 (1); ari-e.GP is associated with SNP markers 1_1198 to 2_0449 (positions 73.70 to 154.37 cM) in 5H bins 02 to 09 of the Bowman backcross-derived line BW043 (1), in 5H bin 06. The ari-e locus is positioned at 52.30 cM on the barley physical map (9. 22). The ari-e.GP gene was fine mapped in a 0.58 Mb interval on the POPSEQ physical map (7).


Awns are about 2/3 normal length, plants are 3/4 to 5/6 normal height, and kernels are smaller (8,19). Awns and spikes are more erect than those of normal sibs (4). Mutant alleles at the ari-e locus are associated with salt tolerance, lower accumulation of Na+ (2, 3, 12), and show relative insensitivity to GA3 (12).The ari-e.GP mutant is described as an elongation (elo) type of semidwarf mutant based on cell size reduction in leaf blades (2). Plants of the Bowman backcross-derived lines for ari-e.1 (BW042) and ari-e.GP (BW043) are about 3/4 as tall as Bowman and have awns that are about half as long. Rachis internodes and leaf blades are slightly shorter. Kernels of BW042 and BW043 were about 10% shorter than those of Bowman and weighed about 10% less. Grain yields of BW042 and BW043 were often less than those of Bowman (5). The ari-e.GP mutant compared to Maythorpe headed 1.5 days earlier. The effect of the ari-e.GP mutant on grain yield per plant was greater in Bowman genetic background than in Maythorpe background (22). The ari-e mutants are loss-of-function mutations in the Hordeum vulgare dense and erect panicle 1 (HvDep1) gene, an Arabidopsis heterotrimeric G protein (AGG3)-type γ-subunit encoding gene that regulates culm elongation and seed size (22). The HvDep1 coding sequence consists of five exons and four introns (22).

Origin of mutant:

A neutron induced mutant in Bonus (NGB 14657, PI 189763) (8).

Mutational events:

ari-e.1 (NGB 115846, GSHO 1653) in Bonus (NGB 14657, PI 189763) (8); ari-e.30 (NGB 115879), -e.39 (NGB 115889) in Bonus (10); ari-e.119 (NGB 115931), -e.156 (NGB 115966) in Foma (NGB 14659, CIho 11333) (8); ari-e.166 (NGB 115976), -e.178 (NGB 115988), -e.222 (NGB 116301) in Foma (10); ari-e.228 (NGB 116038) in Foma (8); ari-e.GP (Golden Promise, PI 343079, GSHO 1733) in Maythorpe (PI 260893) (3, 4, 16), but PI 260893 has three genomic regions that differ from Golden Promise (21). Based on DNA sequencing of the HvDep1 gene, the ari-e.178, ari-e.222, and ari-e.228 mutants could not be confirmed as being ari-e mutants (22).

Mutant used for description and seed stocks:

ari-e.1 (NGB 115846, GSHO 1653) in Bonus; ari-e.GP in Maythorpe (GSHO 1733); ari-e.1 in Bowman (PI 483237)*7 (GSHO 2104, BW042, NGB 20450); ari-e.GP from Golden Promise in Bowman*7 (GSHO 2105, BW043, NGB 20451).


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U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl.26:276.


U. Lundqvist and J.D. Franckowiak. 2011. Barley Genet. Newsl.41:131-132.
U. Lundqvist and J.D. Franckowiak. 2017. Barley Genet. Newsl. 47:120-122.