BGS 460 Gigas Gig
Previous nomenclature and gene symbolization:
sf for female sterile (1,3).
Inheritance:
Monofactorial recessive (1) and allelic to sf (3,5).
Not on chromosome 3 (3,6) or 4,5 or 6(3).
Description:
Culm length and diameter, leaves, spikes, glume larger and awns shorter
than control; leaves darker green; spikes lax, culms, leaf sheath, spike
heavily waxed (4); anther development good; stigma poorly developed with
less feathery structure resulting in low seed set (1,4).
Origin of mutant:
Spontaneous mutant in a hybrid population of Montcalm x Galore x Daples
(GB96) (1). Radiation induced (X15Kr) in Tochigi Golden Melon (4,5).
Mutational events:
Spontaneous mutation in a cross GB96 (sf) (1). KM72 induced
by irradiation (X15Rr) in Tochigi Golden Melon (4,5).
Mutant used for description and seed stock:
gig in KM72 in Tochigi Golden Melon (4,5). For description (1).
Seed stocks for both mutants.
References:
1. Harvey, B.L., E. Reinbergs and B.H. Somaroo. 1968. Can J. Plant Sci. 48:417-418.
2. Shim, J.W., E. Furst and T. Tsuchiya. 1983. BGN 13:49.
3. Shim, J.W., A. Shahla and T. Tsuchiya. 1984. BGN 14: I
4. Tsuchiya, T. 1962. Annual Report on Breeding of Malting Barley Kihara Inst. Biol. Res. Japan, 28 pp. with 8 tables, Mimeo.
5. Tsuchiya, T. 1975. BGN 5:64-67.
6. Tsuchiya, T, and R.L. Haines. 1975. BGN 5:67-69.
Prepared by: T. Tsuchiya, 1985. BGN 15.