International Database for Barley Genes and Barley Genetic Stocks

BGS 194, Slender dwarf 7, sld7

BGN  43:101
Stock number: BGS 194
Locus name: Slender dwarf 7
Locus symbol: sld7

Previous nomenclature and gene symbolization:

Slender dwarf f = sld.f (3).


Monofactorial recessive (4).
Located in chromosome 4HL (4); sld7.f is based on linkage drag with the int-c (intermedium sapike-c) locus (4); sld7.f is associated with SNP markers 2_0762 to 2_0089 (positions 143.75 to 183.54 cM) in 4H bins 10 to 13 of Bowman backcross-derived line BW853 (1).


The original sld7.f mutant was isolated based on reduced plant height and exhibited reduced tillering (2). Plants of the Bowman backcross-derived line for sld7.f, BW853, were 80 to 90% for normal height. Grain yields of BW853 were 1/4 to 3/4 those of Bowman. Other morphological traits of BW853 were similar to those of Bowman (3).

Origin of mutant:

A sodium azide induced mutant in Glenn (CIho 15769) (2).

Mutational events:

sld7.f (GSHO 2481) in Glenn (CIho 15769) (2, 3).

Mutant used for description and seed stocks:

sld7.f (GSHO 2481) in Glenn; sld7.f in Bowman (PI 483237)*5 (GSHO 1997), sld7.f in Bowman*8 (BW853, NGB 22290).


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. Faue, A.C. 1987. Chemical mutagenesis as a breeding tool for barley. M.S. Thesis. North Dakota State Univ., Fargo.
3. Franckowiak, J.D. (Unpublished).
4. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross derived lines of spring barley. Barley Genet. Newsl. 24:63-70.


J.D. Franckowiak. 2013. Barley Genet. Newsl. 43:101.