International Database for Barley Genes and Barley Genetic Stocks

BGS 694, Necroticans 23, nec23

BGN  43:197
Stock number: BGS 694
Locus name: Necroticans 23
Locus symbol: nec23

Previous nomenclature and gene symbolization:



Monofactorial recessive (1).
Location is unknown.


Leaf blades of nec23.av plants produce small to medium sized dark brown spots. Chlorosis of the leaf blade occurs first in regions where the spots are numerous. The mutant plants have good vigor. The nec23.av mutant is not allelic to the mutant (necroticans 15) mutant (FN452, GSHO 3632) (1).

Origin of mutant:

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

Mutational events:

nec23.av (FN369, GSHO 3628) in Steptoe (CIho 15229) (1).

Mutant used for description and seed stocks:

nec23.av (FN369, GSHO 3628) in Steptoe.


1. Kleinhofs, A. (Unpublished).


A. Kleinhofs. 2013. Barley Genet. Newsl. 43:197.