International Database for Barley Genes and Barley Genetic Stocks
BGS 23, Winding dwarf 1, wnd1
Stock number: BGS 23
Locus name: Winding dwarf 1
Locus symbol: wnd1
Previous nomenclature and gene symbolization:
Monofactorial recessive (1).
Located in chromosome 4HL (1); wnd1.a is associated with SNP markers 1_1398 to 2_0384 (positions 127.80 to 133.98 cM) in 4H bins 09 to 10 of the Bowman backcross-derived line BW906 (1). Previously located in chromosome 7HS (3); over 25.4 cM distal from the dsp1 (dense spike 1) locus (3).
Plants are semidwarf (15 cm shorter than the original cultivar) and have a pronounced coiling or winding of the upper portion of peduncle (3). The original stock for the wnd1.a gene also contained the dense spike (dsp1.a) gene, but the Bowman backcross-derived line, BW906, does not (2). Only a slight and inconsistent reduction in plant height was observed in BW906 compared to Bowman. However, the BW906 plants had a distinct coiling of the upper portion of the peduncle. No other morphological differences compared to Bowman were observed (2).
Origin of mutant:
A gamma-ray induced mutant in Kogen-mugi (OUJ099, PI 383956) from M Toda (3).
wnd1.a (OUM309, GSHO 2499, G754) in Kogen-mugi (G754, OUJ099, PI 383956) (3).
Mutant used for description and seed stocks:
wnd1.a (OUM309, GSHO 2499) in Kogen-mugi; wnd1.a in Bowman (PI 483237)*7 (GSHO 1832, BW906, NGB 22337).
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 Franckowiak, J.D. (Unpublished).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. Takahashi, R., J. Hayashi, T. Konishi, and I. Moriya. 1975. Linkage analysis of barley mutants. Barley Genet. Newsl. 5:56-60.
J.D. Franckowiak and T. Konishi. 1997. Barley Genet. Newsl. 26:69.
J.D. Franckowiak. 2012. Barley Genet. Newsl. 42:74.