International Database for Barley Genes and Barley Genetic Stocks

BGS 691, Necroticans 20, nec20

BGN  43:194
Stock number: BGS 691
Locus name: Necroticans 20
Locus symbol: nec20

Previous nomenclature and gene symbolization:



Monofactorial recessive (1).
Location is unknown.


Initial expression of the mutant is widely scattered small medium brown necrotic spots on the leaf blades. Later mutant plants show extensive brown necrosis of leaf blades with lesions spreading and resulting in death of older leaf blades. The phenotype of plants is similar to that of the (necroticans 18) mutant (FN275, GSHO 3623) and the (necroticans 19) mutant (FN327, GSHO 3624) plants (1).

Origin of mutant:

A fast neutron induced mutant in Steptoe (CIho 15229) (1).

Mutational events: (FN366, GSHO 3625) in Steptoe (CIho 15229) (1).

Mutant used for description and seed stocks: (FN366, GSHO 3625) in Steptoe.


1. Kleinhofs, A. (Unpublished).


A. Kleinhofs. 2013. Barley Genet. Newsl. 43:194.