International Database for Barley Genes and Barley Genetic Stocks
BGS 630, Breviaristatum-s, Ari-s
Stock number: BGS 630
Locus name: Breviaristatum-s
Locus symbol: Ari-s
Previous nomenclature and gene symbolization:
Breviaristatum-265 = ari-265 (3).
Monofactorial incomplete dominant (2).
Located in chromosomes 5H or 7H (1); Ari-s.265 is associated with SNP markers 2_1177 (position 203.85 cM) in 5H bin 11 and with SNP marker 1_1291 (position 107.44 cM) in 7H bin 07 of the Bowman backcross-derived line BW057 (1). Note that the expression of marker 1_1291 was variable among BW lines.
Awns of plants homozygous for the Ari-s.265 allele are about 1/3 normal length and slightly wider than those of normal sibs. The grain is wide and short and has a globose shape. Sterile lateral spikelets and glumes are about half normal length. Rachis internodes are shortened slightly, plants are 3/4 to 5/6 of normal height, and plant vigor is reduced (2). Awns of plants heterozygous for the Ari-s.265 allele were 3/4 normal length. A slight shortening of other parts of the spike was observed in heterozygotes (2). Compared to Bowman, plants of the Bowman backcross-derived line for Ari-s.265, BW057, were 10 to 15% shorter, their awns were about half as long, and rachis internodes were shorter, 3.7 vs. 4.5 mm. Kernel were short, 6.3 vs. 9.7 mm and about 40% lighter, 3.5 vs. 5.8 mg. Grain yields of BW057 were about 1/3 those of Bowman (2).
Origin of mutant:
A gamma-ray induced mutant in Kristina (NGB 14661, NGB 1500) (3, 4).
Ari-s.265 (NGB 116074) in Kristina (NGB 14661, NGB 1500) (4).
Mutant used for description and seed stocks:
Ari-s.265 (NGB 116074) in Kristina; Ari-s.265 in Bowman (PI 483237)*6 (GSHO 3426); Ari-s.265 in Bowman*7 (BW057, NGB 20405).
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 Franckowiak, J.D. (Unpublished).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 Lundqvist, U. (Unpublished).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. 2002. Barley Genet. Newsl. 32:131.
J.D. Franckowiak and U. Lundqvist. 2011. Barley Genet. Newsl. 41:197.