International Database for Barley Genes and Barley Genetic Stocks

BGS 112, Albino seedling 9, abo9

BGN  26:146
Stock number: BGS 112
Locus name: Albino seedling 9
Locus symbol: abo9

Previous nomenclature and gene symbolization:

White seedling n = an (2).
Albino seedling n = an (3).


Monofactorial recessive (2).
Located in chromosome 3HS (1, 2); abo9.i is about 9.4 cM distal from the xnt3 (xantha seedling 3) locus (2); abo9.i is about 15.5 cM proximal from the xnt6 (xantha seedling 6) locus (2); about 9.9 cM distal from the yst1 (yellow streak 1) locus (1).


Seedlings are white in color and devoid of normal pigments (2). Plants with this phenotype are classified as albino mutants (3). The abo9.i gene must be maintained as a heterozygous stock.

Origin of mutant:

A spontaneous mutant in Hordeum distichum var nigrinudum (2).

Mutational events:

abo9.i (Nigrinudum I, GSHO 348) in Nigrinudum (NSL 3286, GSHO 988) (2).

Mutant used for description and seed stocks:

abo9.i (GSHO 348) in Nigrinudum.


1. Kasha, K., and C.R. Burnham. 1965. The location of interchange breakpoints in barley. I. Linkage studies and map orientation. Can. J. Genet. Cytol. 7:62-77.
2. Robertson, D.W. 1937. Maternal inheritance in barley. Genetics 22:104-113.
3. 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.


T. Tsuchiya and T.E. Haus. 1971. Barley Genet. Newsl. 1:134.


J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:146.