International Database for Barley Genes and Barley Genetic Stocks

BGS 690, Necroticans 19, nec19

BGN  43:193
Stock number: BGS 690
Locus name: Necroticans 19
Locus symbol: nec19

Previous nomenclature and gene symbolization:



Monofactorial recessive (1).
Location is unknown.


Mutant plants show extensive medium brown necrosis of leaf blades with lesions spreading and resulting in death of older leaf blades. The plants showed fair to good plant vigor. The mutant is phenotypically similar to later stages of symptom expression caused by the (necroticans 18) mutant (FN275, GSHO 3623, BGS 689), but lesions appear slightly darker. The mutant is not allelic to the (necroticans 15) mutant (FN023, GSHO 3620, BGS 686) (1).

Origin of mutant:

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

Mutational events: (FN327, GSHO 3624) in Steptoe (CIho 15229) (1).

Mutant used for description and seed stocks: (FN327, GSHO 3624) in Steptoe.


1. Kleinhofs, A. (Unpublished).


A. Kleinhofs. 2013. Barley Genet. Newsl. 43:193.