International Database for Barley Genes and Barley Genetic Stocks

BGS 90, Erectoides-j, ert-j

BGN  43:70
Stock number: BGS 90
Locus name: Erectoides-j
Locus symbol: ert-j

Previous nomenclature and gene symbolization:

Erectoides-31 = ert-31 (4).

Inheritance:

Monofactorial recessive (4).
Located in chromosome 2H (3); ert-j.31 is based on linkage drag with the Gth1 (Toothed lemma 1) locus (3); ert-j.31 is associated with SNP markers 3_1205 to 1_1533 (positions 139.43 to 141.56 cM) in 2H bin 09 of the Bowman backcross-derived line BW313 (1), in 2H bin 09.

Description:

Spikes are semicompact with rachis internode length estimates of 2.4 and 2.6 mm, and culms are about 3/4 normal length (7). Compared to Bowman plants, the plants of the Bowman backcross-derived line for ert-j.31, BW313, were 10 to 20% shorter, peduncles were 20 to 25% shorter, the average rachis internode length was 3.4 vs. 4.6 mm, and kernels were 10% shorter. Spikes had 1 to 3 fewer kernels, kernels were 10 to 20% lighter, and grain yields were 10 to 20% lower than those of Bowman (2).

Origin of mutant:

An X-ray induced mutant in Bonus (NGB 14657, PI 189763) (4).

Mutational events:

ert-j.31 (NGB 112632, GSHO 484) in Bonus (NGB 14657, PI 189763) (4); ert-j.74 (NGB 112673) in Bonus (5); ert-j.326 (NGB 112841) in Foma (NGB 14659, CIho 11333) (6).

Mutant used for description and seed stocks:

ert-j.31 (NGB 112632, GSHO 484) in Bonus; ert-j.31 in Bowman (PI 483237)*7 (GSHO 1902, BW313, NGB 22109).

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 Franckowiak, J.D. (Unpublished).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. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
4. Hagberg, A., Å. Gustafsson, and L. Ehrenberg. 1958. Sparsely contra densely ionizing radiations and the origin of erectoid mutants in barley. Hereditas 44:523-530.
5. 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.
6. Lundqvist, U. (Unpublished).
7. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative character in barley. Morphology and cytogenetics of erectoides mutants. Hereditas 61:115-178.

Prepared:

U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:129.

Revised:

U. Lundqvist and J.D. Franckowiak. 2013. Barley Genet. Newsl. 43:70.
 


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