International Database for Barley Genes and Barley Genetic Stocks

BGS 494, Laxatum-kf, lax-kf

BGN  47:163
Stock number: BGS 494
Locus name: Laxatum-kf
Locus symbol: lax-kf

Previous nomenclature and gene symbolization:

Laxatum-295 = lax-295 (3, 4).


Monofactorial recessive (5), but partially sterile F1 plants indicated that a translocation was present in lax-kf.295 (5).
Location is unknown.


Rachis internodes of lax-kf.295 were about equal to those of Foma at normal sowing distances, but rachis internodes were a little longer at lower sowing densities (4). Spikes that emerged earlier had slightly longer rachis internodes than later emerging spikes (4).
No images

Origin of mutant:

An ethyl methanesulfonate induced mutant in Foma (NGB 14659, CIho 11333) (4, 6).

Mutational events:

lax-kf.268 (NGB 116493), -kf.295 (NGB 116519) in Foma (NGB 14659, CIho 11333) (1, 2, 5, 6).

Mutant used for description and seed stocks:

lax-kf.295 (NGB 116493) in Foma.


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. Lundqvist, U. (Unpublished).


H.E.B. Larsson and U. Lundqvist. 1986. Barley Genet. Newsl. 16:77.


U. Lundqvist. 2017. Barley Genet. Newsl. 47:163.