International Database for Barley Genes and Barley Genetic Stocks

BGS 482, Laxatum-k, lax-k

BGN  47:147
Stock number: BGS 482
Locus name: Laxatum-k
Locus symbol: lax-k

Previous nomenclature and gene symbolization:

Laxatum-84 = lax-84 (3, 4).


Monofactorial incomplete dominant (5).
Located in chromosomes 2H or 3H (6); lax-k.84 is linked to the translocation breakpoint in translocation stock T2-3f (6).


Rachis internodes of lax-k.84 were about 4% longer than those of Bonus. The lax-k.84 plants had narrow, dark green leaf blades and very thin kernels (4).
No images

Origin of mutant:

A gamma-ray induced mutant in Bonus (NGB 14657, PI 189763) (4, 7).

Mutational events:

lax-k.42 (NGB 116376), -k.44 (NGB 116378), k.84 (NGB 116416) in Bonus (NGB 14657, PI 189763) (1, 2, 5, 7).

Mutant used for description and seed stocks:

lax-k.84 (NGB 116416) in Bonus.


1. Ehrenberg, L., Å. Gustafsson, and U. Lundqvist. 1959. The mutagenic effects of ionizing radiations and reactive ethylene derivatives in barley. Hereditas 45:351-368.
2. Ehrenberg, L., Å. Gustafsson, and U. Lundqvist. 1961. Viable mutants induced in barley by ionizing radiations and chemical mutagens. Hereditas 47:243-282.
3. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A proposed system of symbols for the collection of barley mutants at Svalöv. Hereditas 62:409-414.
4. Larsson, H.E.B. 1985. Morphological analysis of laxatum barley mutants. Hereditas 103:239-253.
5. Larsson, H.E.B. 1985. Genetic analysis of laxatum barley mutants. Hereditas 103:255-267.
6. Larsson, H.E.B. 1985. Linkage studies with genetic markers and some laxatum barley mutants. Hereditas 103:269-279.
7. Lundqvist, U. (Unpublished).


H.E.B. Larsson and U. Lundqvist. 1986. Barley Genet. Newsl. 16:65.


U. Lundqvist. 2017. Barley Genet. Newsl. 47:147.