International Database for Barley Genes and Barley Genetic Stocks
BGS 229, Curly dwarf 2, cud2
Stock number: BGS 229
Locus name: Curly dwarf 2
Locus symbol: cud2
Previous nomenclature and gene symbolization:
None.
Inheritance:
Monofactorial recessive (3).
Located in chromosome 1HL (3); cud2.b is about 14.6 cM proximal from the Blp1 (Black lemma and pericarp 1) locus (3, 4); no SNP markers different than those of Bowman were retained in the Bowman backcross-derived line BW199 for cud2.b (1).
Located in chromosome 1HL (3); cud2.b is about 14.6 cM proximal from the Blp1 (Black lemma and pericarp 1) locus (3, 4); no SNP markers different than those of Bowman were retained in the Bowman backcross-derived line BW199 for cud2.b (1).
Description:
Lemmas and awns are curly or strongly twisted, and stem internodes are curved. Culms are short (1/2 normal), spikes are semi-compact, awns are short (2/3 normal length), and kernels are globe-shaped. Most leaves are short and slightly twisted (3). In the Bowman backcross-derived line for cud2.b, BW199, plants were short (3/5 of Bowman), the twisted leaf blades were slightly shorter, peduncles were coiled and about 1/2 normal length, rachis internodes were slightly shorter, and awns were twisted and 2/3 normal length. Compared to Bowman, kernels were short (80% as long) and slightly wider and were about 3/4 normal weight (4.2 vs. 5.5 mg), and test weights were about 25% lower. Grain yields of BW199 were 1/4 to 1/2 of those for Bowman (2).
 seedlings at the second leaf blade stage'))
 plant just before heading time to the left compared with normal Bowman'))
 plant at a later growing stage to the left compared with normal Bowman'))
Origin of mutant:
An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI 467400) (3).
Mutational events:
cud2.b (OUM112, GSHO 1712) in Akashinriki (OUJ659, PI 467400) (3).
Mutant used for description and seed stocks:
cud2.b (OUM112, GSHO 1712) in Akashinriki; cud2.b in Bowman (PI 483237)*2 (GSHO 2062); cud2.b in Bowman*7 (BW199, NGB 22031).
References:
1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendramin, M. Morgante, N. Stein, and R. Waugh. 2011. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
2. Franckowiak, J.D. (Unpublished).
3. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984. Inheritance and linkage studies in barley VI. Ten mutant genes located on chromosomes 1 to 7, except 3. Ber. Ohara Inst. landw. Biol., Okayama Univ. 18:227-250.
4. Jensen, J. 1986. Coordinator's report: Chromosome 5. Barley Genet. Newsl. 16:32-34.
2. Franckowiak, J.D. (Unpublished).
3. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984. Inheritance and linkage studies in barley VI. Ten mutant genes located on chromosomes 1 to 7, except 3. Ber. Ohara Inst. landw. Biol., Okayama Univ. 18:227-250.
4. Jensen, J. 1986. Coordinator's report: Chromosome 5. Barley Genet. Newsl. 16:32-34.
Prepared:
T. Konishi and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:227.
Revised:
J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:111.
J.D. Franckowiak. 2017. Barley Genet. Newsl. 47:103.
J.D. Franckowiak. 2017. Barley Genet. Newsl. 47:103.
