International Database for Barley Genes and Barley Genetic Stocks

BGS 490, Laxatum-gf, lax-gf

BGN  47:157
Stock number: BGS 490
Locus name: Laxatum-gf
Locus symbol: lax-gf

Previous nomenclature and gene symbolization:

Laxatum-217 = lax-217 (3, 4).


Monofactorial recessive (5).
Location is unknown.


Rachis internodes of lax-gf.217 were 22% longer than those of Foma (4). Plants were relatively vigorous, spikes exhibited irregular rachis internode elongation, and sterile lateral spikelets were enlarged (4).
No images

Origin of mutant:

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

Mutational events:

lax-gf.217 (NGB 116445), -gf.288 (NGB 116512) in Foma (NGB 14659, CIho 11333) (1, 2, 5, 6,).

Mutant used for description and seed stocks:

lax-gf.217 (NGB 116445) 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 Lundqvist, U. (Unpublished).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. 16:73.


U. Lundqvist. 2017. Barley Genet. Newsl. 47:157.