International Database for Barley Genes and Barley Genetic Stocks
BGS 305, Cream seedling 1, crm1
Stock number: BGS 305
Locus name: Cream seedling 1
Locus symbol: crm1
Previous nomenclature and gene symbolization:
White seedling b = ab (2).
Albino seedling b = ab (3).
Cream seedling = cm (1, 4).
Albino seedling b = ab (3).
Cream seedling = cm (1, 4).
Inheritance:
Monofactorial recessive (2, 3).
Located in chromosome 5HL (1); crm1.a is closely linked to the raw1 (smooth awn 1) locus (1), and is about 26.0 cM from the srh1 (short rachilla hair 1) locus (2).
Located in chromosome 5HL (1); crm1.a is closely linked to the raw1 (smooth awn 1) locus (1), and is about 26.0 cM from the srh1 (short rachilla hair 1) locus (2).
Description:
Seedlings are cream in color and survive until they are about two weeks old (4). The crm1.a gene must be maintained as a heterozygous stock.
 to the right compared with normal Bowman. The mutant looks very much like Albino seedling.'))
 seedlings in a planting box. The mutants look much more Albino seedlings.'))
 showing black colored lemmas and six-rowed as it is induced in Black Hulless.'))
Origin of mutant:
A spontaneous mutant in Black Hulless (PI 24849) (2).
Mutational events:
crm1.a (Black Hulless III, GSHO 20) in Black Hulless (PI 24849) (2).
Mutant used for description and seed stocks:
crm1.a (GSHO 20) in Black Hulless.
References:
1. Kramer, H.H., and B.A. Swomley Blander. 1961. Orienting linkage maps on the chromosomes of barley. Crop Sci. 1:339-342.
2. Robertson, D.W. 1933. Inheritance in barley. Genetics 18:148-158.
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.
4. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A summary of linkage studies in cultivated barley, Hordeum species: Supplement III, 1954-1963. Crop Sci. 5:33-43.
2. Robertson, D.W. 1933. Inheritance in barley. Genetics 18:148-158.
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.
4. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A summary of linkage studies in cultivated barley, Hordeum species: Supplement III, 1954-1963. Crop Sci. 5:33-43.
Prepared:
T.E. Haus and T. Tsuchiya. 1971. Barley Genet. Newsl. 1:164.
T.E. Haus. 1988. Barley Genet. Newsl. 18:83 as BGS 514, Albino seedling b, ab.
T.E. Haus. 1988. Barley Genet. Newsl. 18:83 as BGS 514, Albino seedling b, ab.
Revised:
T.E. Haus. 1988. Barley Genet. Newsl. 18:81.
U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:256.
U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:256.
