International Database for Barley Genes and Barley Genetic Stocks

BGS 169, Light green 2, lgn2

BGN  42:264
Stock number: BGS 169
Locus name: Light green 2
Locus symbol: lgn2

Revised locus symbol:

Some confusion exists about the correct identity of the lgn2.b stock. The lgn2.b mutant may be at the same mutant as lgn3.c (see BGS 170), but this fact has not been confirmed by allelism tests because both are associated with same accession (GSHO 171).

Previous nomenclature and gene symbolization:

Light green 2 = lg2 (1).
Light green 3 = lg3 (2).


Monofactorial recessive (2).
Located in chromosome 4HS (2); lgn2.b is located about 2.0 cM from the Kap1 (Hooded lemma 1) locus (2).


Seedlings have pale green color and are not viable (2). Greenhouse grown seedlings appear normal upon emergence, but later their color changes to pale green and they die (1). This mutant would need to be maintained as a heterozygous stock.
No images

Origin of mutant:

A spontaneous mutant in an unknown cultivar (2), but labeled Minn. 75 and with a phenotype similar to Black Hulless.

Mutational events:

lgn2.b (GSHO 171) in an unknown cultivar (2).

Mutant used for description and seed stocks:

lgn2.b (GSHO 171) in an unknown cultivar.


1. Haus, T.E. 1978. BGS 169, Light green-2, lg2. Barley Genet. Newsl. 8:153.
2. Immer, F.R., and M.T. Henderson. 1943. Linkage studies in barley. Genetics 28:419-440.


T.E. Haus. 1978. Barley Genet. Newsl. 8:153.


J.D. Franckowiak. 2012. Barley Genet. Newsl. 42:264.