International Database for Barley Genes and Barley Genetic Stocks

BGS 570, Erectoides-z, ert-z

BGN  48:167
Stock number: BGS 570
Locus name: Erectoides-z
Locus symbol: ert-z

Previous nomenclature and gene symbolization:

Erectoides-71 = ert-71 (3).


Monofactorial recessive (3).
Located likely in chromosome 5H (1); ert-z.71 is associated with SNP markers from 2_1253 to 2_1341 (positions 65.06 to 98.42 cM) in 5H bins 04 to 06 of the Bowman backcross-derived line BW329 (1); also retained in BW329 were small groups of parental markers in 1HL from 2_1446 to 2_1373 (positions 136.36 to 141.35 cM) in 1H bin 11, and 7HL 1_1243 to 1_0861 (positions 167.56 to 183.90 cM) in 7H bins 10 to 11 (1).


Plants of the ert-z.71 mutant had slightly denser spikes than their parent; with a rachis internode length value of 2.8 mm. Culm length was about 3/4 of normal (4). In the Bowman backcross-derived line for ert-z.71 (BW329), variability in the rachis internode length observed, and average internode lengths were 3.8 vs. 4.5 mm for Bowman. BW329 plants were 10 to 15% shorter and their spikes had about two fewer kernels. Kernels of BW329 were 10 to 15% shorter and slightly wider and weighed 10% less, 52 vs 58 mg. The leaf blades of BW329 were slightly wider, and awns were slightly shorter. Grain yields of BW329 were about 15% lower than those of Bowman (2).

Origin of mutant:

A neutron induced mutant in Bonus (NGB 14657, PI 189763) (3).

Mutational events:

ert-z.71 (NGB 112670, GSHO 500) in Bonus (NGB 14657, PI 189763) (3).

Mutant used for description and seed stocks:

ert-z.71 (NGB 112670, GSHO 500) in Bonus; ert-z.71 in Bowman (PI 483237, NGB 22812)*5 (GSHO 2260); ert-z.71 in Bowman*7 (BW329, NGB 22124).


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 Franckowiak, J.D. (Unpublished).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. Hagberg, A., G. Persson, and A. Wiberg. 1963. Induced mutations in the improvement of self-pollinated crops. p. 105-124. In E. Åkerberg and A. Hagberg (eds.) Recent Plant Breeding Research. Svalöf 1946-1961. Almqvist & Wiksell, Stockholm.
4. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative character in barley. Morphology and cytogenetics of erectoides mutants. Hereditas 61:115-178.


U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:496.


U. Lundqvist and J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:167.