International Database for Barley Genes and Barley Genetic Stocks

BGS 489, Laxatum-ff, lax-ff

BGN  47:156
Stock number: BGS 489
Locus name: Laxatum-ff
Locus symbol: lax-ff

Previous nomenclature and gene symbolization:

Laxatum-216 = lax-216 (3, 4).


Monofactorial recessive (5).
Location is unknown.


Rachis internodes of lax-ff.216 were about equal to those of Foma at normal sowing distances, but rachis internodes were a little longer at lower sowing densities (4). Kernels were relatively round and weighed about 25% less than Foma kernels (4).
No images

Origin of mutant:

An ethylene imine induced mutant in Foma (NGB 14659, CIho 11333) (4, 6).

Mutational events:

lax-ff.216 (NGB 116444), -ff.233 (NGB 116461) in Foma (NGB 14659, CIho 11333) (1, 2, 5, 6,).

Mutant used for description and seed stocks:

lax-ff.216 (NGB 116444) 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.


H.E.B. Larsson and U. Lundqvist. 1986. Barley Genet. Newsl. 16:72.


U. Lundqvist. 2017. Barley Genet. Newsl. 47:156.