International Database for Barley Genes and Barley Genetic Stocks

BGS 588, Albino seedling 10, abo10

BGN  26:515
Stock number: BGS 588
Locus name: Albino seedling 10
Locus symbol: abo10

Previous nomenclature and gene symbolization:

White seedling t2 = at2 (1).
Albino seedling t2 = at2 (2).


Monofactorial recessive and expressed in the endosperm as a xenia effect (1).
Location is unknown.


Seedlings are very weak and white in color (1). A xenia effect of the abo10.j gene on seed size is described in Robertson (1). Seeds, which are homozygous for this seedling lethal gene, are shriveled with a 1000-kernel weight of 23.4 g compared with 46.5 g for normal kernels. After germination, the endosperm turns watery instead of pasty as found with normal seeds (1). Plants with this phenotype are classified as albino mutants (2). The abo10.j gene must be maintained as a heterozygous stock.

Origin of mutant:

A spontaneous mutant in Canadian Thorpe (PI 2710) (1).

Mutational events:

abo10.j (Canadian Thorpe I, GSHO 57) in Canadian Thorpe (PI 2710) (1).

Mutant used for description and seed stocks:

abo10.j (GSHO 57) in Canadian Thorpe.


1. Robertson, D.W. 1932. The effect of a lethal in the heterozygous condition on barley development. Colorado Agric. Exp. Stn. Tech. Bull. 1. 12 p.

2. Robertson, D.W., G.A. Wiebe, and F.R. Immer. 1941. A summary of linkage studies in barley. J. Am. Soc. Agron. 33:47-64.


J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:515.