International Database for Barley Genes and Barley Genetic Stocks

BGS 554, Breviaristatum-m, ari-m

BGN  47:175
Stock number: BGS 554
Locus name: Breviaristatum-m
Locus symbol: ari-m

Revised locus symbol:

The allelism based similarities in phenotypes of the Bowman-backcross-derived lines (3) and retained donor parent SNP markers (2) for the ari-m .28 and several brh1 mutants (2) was confirmed by Braumann et al. (1). Therefore, to find more information about this locus, see BGS 001, the barley genetic stock (BGS) description for the Brachytic 1 (brh1) locus.

Previous nomenclature and gene symbolization:

Brachytic = br (1, 8, 9).
Breviaristatum-i = ari-i (5, 6).
Breviaristatum-28 = ari-28 (7).


Monofactorial recessive (6).
Location in chromosome 7HS (3); ari-m.28 is associated with SNP markers 2_0710 to 2_0307 (positions 4.74 to 9.55 cM) in 7H bin 01 of the Bowman backcross-derived line BW051 (3), the genomic position of the Brh1 locus at 12.74 cM in 7HS (1), in 1H bin 01 near the border with 1H bin 02.


Plants are semidwarf (2/3 normal height) and can be placed in the brachytic class of semidwarfs (4). Kernels are globe-shaped and awns are about 1/2 normal length (4). Spikes are slightly more lax than normal (4). Plants of the Bowman backcross-derived line for ari-m.28 (BW051) are phenotypically similar to other Bowman backcross-derived lines with mutant alleles at the Brh1 (Brachytic 1) locus (1). The ari-m mutants occur in the Brh1 locus and are deficient in the Gα subunit of a heterotrimeric G protein, which is an important regulator of culm length in barley (1).

Origin of mutant:

A gamma-ray induced mutant in Bonus (NGB 14657, PI 189763) (6).

Mutational events:

ari-m.12 (NGB 115858, GSHO 1661), -m.28 (NGB 115876) in Bonus (NGB 14657, PI 189763), -m.141 (NGB 115951), -m.177 (NGB 115987) in Foma (NGB 14659, CIho 11333), -m.251 (NGB 116059) in Kristina (NGB 14661, NGB 1500) (6); ari-m.269 (NGB 116081) in Kristina (6,7).

Mutant used for description and seed stocks:

ari-m.28 (NGB 115876, GSHO 1661) in Bonus; ari-m.28 in Bowman (PI 483237)*6 (GSHO 2161); ari-m.28 in Bowman*8 (BW051, NGB 20459).


1. Braumann. I., C. Dockter, S. Beier, A. Himmelbach, F. Lok, U. Lundqvist, B. Skadhauge, N. Stein, S. Zakhrabekova, R. Zhou, and M. Hansson. 2018. Mutations in the gene of the Gα subunit of the heterotrimeric G protein are the cause for the brachytic1 semi-dwarf phenotype in barley and applicable for practical breeding. Hereditas 155:10.
2. 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.
3. Franckowiak, J.D. (Unpublished).
4. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants in barley. Barley Genet. Newsl. 24:56-59.
5. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A proposed system of symbols for the collection of barley mutants at Svalöv. Hereditas 62:409-414.
6. Kucera, J., U. Lundqvist, and Å. Gustafsson. 1975. Inheritance of breviaristatum mutants in barley. Hereditas 80:263-278.
7. Lundqvist, U. (Unpublished).
8. Powers, L. 1936. The nature of the interactions of genes affecting four quantitative characters in a cross between Hordeum deficiens and vulgare. Genetics 21:398-420.
9. Swenson, S.P. 1940. Genetic and cytological studies on a brachytic mutant in barley. J. Agric. Res. 60:687-713.


U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:480.


U. Lundqvist and J.D. Franckowiak. 2011. Barley Genet. Newsl. 41:184.
U. Lundqvist and J.D. Franckowiak. 2017. Barley Genet. Newsl. 47:175-176.