International Database for Barley Genes and Barley Genetic Stocks

BGS 583, Praematurum-g, mat-g

BGN  26:510
Stock number: BGS 583
Locus name: Praematurum-g
Locus symbol: mat-g

Previous nomenclature and gene symbolization:

Praematurum-30 = mat-30 (5).


Monofactorial recessive (2).
Location is unknown.


Early heading mutants at the mat-g locus have a moderate increase in earliness (heading 3 to 4 days earlier than the parents) under field cultivation in Sweden (3, 4). When grown under controlled environmental conditions, mutants are photo- and thermoperiod sensitive and have a pronounced long-day response (1).

Origin of mutant:

An ethylene imine induced mutant in Bonus (NGB 14657, PI 189763) (5).

Mutational events:

mat-g.30 (NGB 110030, GSHO 1793), -g.873 (NGB 110873) , -g.877 (NGB 110877) in Bonus (NGB 14657, PI 189763), -g.985 (NGB 117516) in Sv 79353 (3, 4, 5).

Mutant used for description and seed stocks:

mat-g.30 (NGB 110030, GSHO 1793) in Bonus; mat-g.30 in Bowman (PI 483237)*2 (GSHO 2285); mat-g.30 in Bowman*5 (BW512, NGB 20740).


1. Gustafsson, Å., I. Dormling, and U. Lundqvist. 1982. Gene, genotype and barley climatology. Biol. Zent. Bl. 101:763-782.

2. 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.

3. Lundqvist, U. 1991. Swedish mutation research in barley with plant breeding aspects. A historical review. p. 135-148. In Plant Mutation Breeding for Crop Improvement. Proc. Int. Symp. Vienna, 1990. Int. Atomic Energy Agency, Vienna.

4. Lundqvist, U. 1992. Coordinator's report: Earliness genes. Barley Genet. Newsl. 21:127-129.

5. Lundqvist, U. (Unpublished).


U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:510.