International Database for Barley Genes and Barley Genetic Stocks
BGS 722, Breviaristatum-y, ari-y
Stock number: BGS 722
Locus name: Breviaristatum-y
Locus symbol: ari-y
Previous nomenclature and gene symbolization:
Breviaristatum-9 = ari-9 (3).
Monofactorial recessive (2).
Located in chromosome 5H (1, 2); ari-y.9 is linked to the raw1 (smooth awn 1) locus based on linkage drag (2); ari-y.9 is associated with SNP markers 1_1456 to 2_1177 (positions 195.82 to 203.85 cM) in 5H bins 10 to 11 of the Bowman backcross-derived line BW037 (1).
Plants of the ari-y.9 are smaller than Bonus in all vegetative organs and stature (3, 4). The size reduction of ari-y.9 plants was maintained in the Bowman backcross-derived line, BW037. The awn length of BW037 varied over environments, but averaged about 1/2 that of Bowman. The leaves were about 2/3 normal width and 3/4 normal length. Compared to Bowman, BW037 plants were 15 to 20% shorter, peduncles were 20 to 25% shorter, rachis internodes were slightly shorter, kernels per spike were 3 to 5 fewer, kernels were narrower, and kernel weights were low averaging 4.2 vs. 5.5 mg. Test weights of BW037 grain were lower and grain yields were 1/4 to 1/2 those of Bowman (2).
Origin of mutant:
A gamma-ray induced mutant in Bonus (NGB 14657, PI 189763) (3, 4).
ari-y.9 (NGB 115854) in Bonus (PI 189763) (4).
Mutant used for description and seed stocks:
ari-y.9 (NGB 115854) in Bonus; ari-y.9 in Bowman (PI 483237)*6 (BW037, NGB 20445).
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 Franckowiak, J.D. (Unpublished).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 Lundqvist, U. (Unpublished).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. 43:217.