International Database for Barley Genes and Barley Genetic Stocks

BGS 626, Scirpoides leaf-a, scl-a

BGN  44:201
Stock number: BGS 626
Locus name: Scirpoides leaf-a
Locus symbol: scl-a

Previous nomenclature and gene symbolization:

Scirpoides leaf-6 = scl.6 (3).
Scirpoides leaf-1 = scl.1 (3).
Scirpoides leaf-2 = scl.2 (3).
Scirpoides leaf-4 = scl.4 (3).


Monofactorial recessive (2).
Located in chromosome 1HL (1), scl-a.6 is associated with SNP markers 1_0433 to 1_0396 (positions 139.25 to 143.47 cM) in 1HL in Bowman backcross-derived line BW778; scl-a.6 is associated with SNP marker 2_0780 (position 154.89 cM) in 1HL in Bowman backcross-derived line BW775; associated with SNP markers 1_0006 and 2_1126 (position 110.10 cM) in 1HL in Bowman backcross-derived line BW776 (1), likely in 1H bin 11.


Leaf blades of scl-a plants are folded inward and are narrow compared to those of normal sibs. Folding of the leaf blade persists until maturity (2, 3). Plants of Bowman backcross-derived line BW778 were slightly shorter than Bowman, kernels were slightly thinner and lighter, and grain yields were about 20% lower. Plants of BW778 have inward folded leaf blades that are about 2/3 as wide as those of Bowman (2). The mutant stocks scl.1, scl.2, and scl.4 are alleles based on allelism tests (2). Their phenotypic similarities to the scl-a.6 mutant and SNP markers retained in the same region of 1HL suggesting they are alleles at the scl-a locus (1, 2).

Origin of mutant:

A neutron induced mutant in Foma (NGB 14659, CIho 11333) (3).

Mutational events:

scl-a.6 (NGB 117105) in Foma (NGB 14659, CIho 11333) (3); scl-a.1 (NGB 117100), scl-a.2 (NGB 117101), scl-a.4 (NGB 117102) in Bonus (NGB 14657, PI 189763) (1, 2, 3).

Mutant used for description and seed stocks:

scl-a.6 (NGB 117105) in Foma; scl-a.6 in Bowman (PI 483237)*5 (GSHO 3431), in Bowman*6 (BW778, NGB 20755); scl-a.1 in Bonus (NGB 117100), in Bowman*4 (BW774, NGB 22242); scl-a.2 in Bonus (NGB 117101), in Bowman*5 (BW775, NGB 22243); scl-a.4 in Bonus (NGB 117102), in Bowman*5 (BW776, NGB 20753).


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. 2010. Genetic Dissection of barley morphology and development. Plant Physiology 155:617-627.

2. Franckowiak, J.D. (Unpublished).

3. Lundqvist, U. (Unpublished).


U. Lundqvist and J.D. Franckowiak. 2002. Barley Genet. Newsl. 32:127.
U. Lundqvist and J.D. Franckowiak. 2010. Barley Genet. Newsl. 40:201.
U. Lundqvist and J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:201.