International Database for Barley Genes and Barley Genetic Stocks
BGS 190, Thick filament 1 (male sterile genetic), tfm1
Stock number: BGS 190
Locus name: Thick filament 1 (male sterile genetic)
Locus symbol: tfm1
Previous nomenclature and gene symbolization:
None.
Inheritance:
Monofactorial recessive (2).
Located in chromosome 1HL (1); tfm1.a is associated with SNP markers 2_0603 to 2_0915 (positions 199.04 to 202.94 cM) in 1H bin 14 of a heterozygous plant from the Bowman backcross-derived line BW877 (1),
Description:
The filaments supporting the anthers are much thicker than normal, having a stalk-like appearance and a light green color. Since the filaments do not elongate, the mutant plants are largely male-sterile. Pollen fertility is apparently normal because mutant segregates will set a few seeds. Besides very poor seed, tfm1 plants in Bowman backcross-derived line BW877 appear normal (2).
No images
Origin of mutant:
A spontaneous mutant in the Volla (PI 280423) induced mutant 7060 backcrossed twice to Bowman (PI 483237, NGB 22812) (2).
Mutational events:
tfm1.a from Volla 7060/2*Bowman (2).
Mutant used for description and seed stocks:
tfm1.a from Volla 7060/2*Bowman (PI483237, NGB 22812); tfm1.a in Bowman*7 (BW877, NGB 22311).
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 Franckowiak, J.D. (Unpublished).
)
Prepared:
J.D. Franckowiak. 2010. Barley Genet. Newsl. 40:67.
Revised:
J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:99.
