International Database for Barley Genes and Barley Genetic Stocks
BGS 548, Angustifolium-b, Fol-b
Stock number: BGS 548
Locus name: Angustifolium-b
Locus symbol: Fol-b
Previous nomenclature and gene symbolization:
Angustifolia = Ang (4).
Inheritance:
Monofactorial incomplete dominant (3).
Location in chromosome 1H based on trisomic analysis (3); Fol-b.2 is associated with on SNP markers 2_0502 to 2_1226 (positions 3.18 to 13.50 cM) in 1H bins 01 to 02 of a heterozygous plant from the Bowman backcross-derived line BW371 (1).
Location in chromosome 1H based on trisomic analysis (3); Fol-b.2 is associated with on SNP markers 2_0502 to 2_1226 (positions 3.18 to 13.50 cM) in 1H bins 01 to 02 of a heterozygous plant from the Bowman backcross-derived line BW371 (1).
Description:
Homozygous plants are very weak with short thread-like leaves and often die at the 3 to 4 leaf stage. Heterozygotes have narrow leaves, small spikes and kernels, but vigor is good, and fertility is normal (3). Heterozygous plants of the Bowman backcross-derived stock for Fol-b.2 (BW371) are about 3/4 of normal height, heading is delayed a few days, and grain yields are low. The rachis internodes of heterozygotes are slightly elongated, awns are slightly shorter, and kernels per spike are 2 to 4 fewer. Heterozygotes of the BW371 stock have thin kernels that are about 1/2 of normal weight. The Fol-b.2 gene needs to be maintained in a heterozygous stock (2).
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Origin of mutant:
A spontaneous mutant in an unknown six-rowed cultivar (3), .
A spontaneous mutant in an unknown six-rowed cultivar (3), possibly Mars (CIho 7015) based on retained SNP molecular markers (1, 2).
A spontaneous mutant in an unknown six-rowed cultivar (3), possibly Mars (CIho 7015) based on retained SNP molecular markers (1, 2).
Mutational events:
Fol-b.2 (GSHO 17) in an unknown cultivar (4).
Mutant used for description and seed stocks:
Fol-b.2 (GSHO 17) in an unknown cultivar; Fol-b.2 in Bowman (PI 48323, NGB 22812)*1 (GSHO 2265); Fol-b.2 in Bowman*6 (BW371, NGB 20610).
References:
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. 2010. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
2. Franckowiak, J.D. (Unpublished).
3. Tsuchiya, T., and R.L. Haines. 1975. Trisomic analysis of nine mutant genes in barley. Barley Genet. Newsl. 5:67-69.
4. Tsuchiya, T., S.D. Tanksley, and R. Ward. 1976. Trisomic analysis of three mutant genes in barley. Barley Genet. Newsl. 6:95.
2. Franckowiak, J.D. (Unpublished).
3. Tsuchiya, T., and R.L. Haines. 1975. Trisomic analysis of nine mutant genes in barley. Barley Genet. Newsl. 5:67-69.
4. Tsuchiya, T., S.D. Tanksley, and R. Ward. 1976. Trisomic analysis of three mutant genes in barley. Barley Genet. Newsl. 6:95.
Prepared:
J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:474.
Revised:
J.D. Franckowiak. 2010. Barley Genet. Newsl. 40:131.
J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:161.
J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:161.
