International Database for Barley Genes and Barley Genetic Stocks

BGS 134, Erectoides-c, ert-c

BGN  41:108
Stock number: BGS 134
Locus name: Erectoides-c
Locus symbol: ert-c

Previous nomenclature and gene symbolization:

Erectoides-1 = ert-1 (4).

Inheritance:

Monofactorial recessive (7, 8).
Located in chromosome 3HL (6, 12, 13); ert-c.1 is about 3.7 cM from the centromere (10, 11); cer-c.1 is about 2.9 cM proximal from the msg5 (male sterile genetic 5) locus (2); ert-c.1 is associated with SNP markers 1_0380 to 2_1513 (positions 78.82 to 166.78 cM) in 3H bins 05 to 10 and with SNP markers 1_1302 to 2_1110 (positions 86.79 to 109.78 cM) in 2H bins 07 to 08 of the Bowman backcross-derived line BW305 (1).

Description:

Spikes have a compact or semicompact appearance caused by a reduction in rachis internode length, with values from 1.7 to 2.9 mm (5, 12). The spike has a pyramid shape with shorter rachis internodes at the base and longer ones near the apex. The culm length is also highly variable among mutants at the ert-c locus. Mutants ert-c.66 and ert-c.153 are partially sterile, much shorter in culm length, and have a more bushy growth pattern than other mutants at this locus (5, 12). GA3 treatment of plants as the flag leaf emerges decreases spike density (14). The Bowman backcross-derived line for ert-c.1 (BW305) has a translocation between 2HL and 3HL based on retained SNP markers (1). Plants of BW305 were slightly later and taller than Bowman plants. Rachis internode lengths for BW305 averaged 3.4 vs. 4.6 mm and spikes had 5 to 7 more fertile rachis internodes (3). Compared to Bowman, BW305 had similar kernel weights and grain yields (3).

Origin of mutant:

An X-ray induced mutant in Gull (NGB 1480, CIho 1145, GSHO 466) (4, 7, 8).

Mutational events:

ert-c.1 (trans) (NGB 112605, GSHO 471) in Gull (NGB 1480, CIho 1145, GSHO 466) (7, 15); ert-c.14 (trans) (NGB 112615, GSHO 473) in Maja (NGB 8815, PI 184884), -c.39 (NGB 112639), -c.47 (trans) (NGB 112646), -c.48 (NGB 112647), -c.59 (trans) (NGB 112658), -c.62 (NGB 112661), -c.66 (NGB 112665), -c.70 (trans) (NGB 112669), -c.75 (NGB 112674) (trans), -c.82 (NGB 112681), -c.83 (NGB 112682), -c.85 (NGB 112684), -c.88 (NGB 112687) in Bonus (NGB 14657, PI 189763) (7); ert-c.91 (NGB 112690), -c.95 (NGB 112694), -c.97 (NGB 112696), -c.98 (NGB 112697), -c.108 (NGB 112707), -c.137 (NGB 112736), -c.153 (NGB 112752), -c.173 (NGB 112774), -c.177 (NGB 112778) in Bonus (12); ert-c.176 (NGB 112777), -c.179 (NGB 112780), -c.188 (NGB 112789) in Bonus (9); ert-c.310 (NGB 112826), -c.311 (NGB 112827), -c.312 (NGB 112828) in Foma (NGB 14659, CIho 11333) (12); ert-c.320 (NGB 112835) in Foma (9); ert-c.327 (NGB 112842), -c.342 (NGB 112858), -c.351 (NGB 112867) in Foma (12); ert-c.352 (NGB 112868) in Foma (9); ert-c.355 (NGB 112871), -c.369 (NGB 112885), -c.386 (NGB 112901), -c.395 (NGB 112912) in Foma (12); ert-c.463 (NGB 112978) in Foma (9); ert-c.495 (NGB 113011) in Foma (12).

Mutant used for description and seed stocks:

ert-c.1 (NGB 112605, GSHO 471) in Gull; ert-c.1 in Bowman (PI 483237)*7 (GSHO 1960, BW305, NGB 20587).

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. Eslick, R.F., and W.L. McProud. 1974. Positioning of the male sterile 5 (msg5) on chromosome 3. Barley Genet. Newsl. 4:16-23.

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

4. Gustafsson, Å. 1947. Mutations in agricultural plants. Hereditas 33:1-100.

5. Hagberg, A. 1958. Cytogenetik einiger Gerstenmutanten. Züchter 28:32-36.

6. Hagberg, A. 1960. Cytogenetic analysis of induced mutations. Genet. Agrar. 12:319-336.

7. 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.

8. Hagberg, A., N. Nybom, and Å. Gustafsson. 1952. Allelism of erectoides mutations in barley. Hereditas 38:510-512.

9. Lundqvist, U. (Unpublished).

10. Persson, G. 1969. An attempt to find suitable genetic markers for the dense ear loci in barley I. Hereditas 62:25-96.

11. Persson, G. 1969. An attempt to find suitable genetic markers for the dense ear loci in barley II. Hereditas 63:1-28.

12. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative character in barley. Morphology and cytogenetics of erectoides mutants. Hereditas 61:115-178.

13. Søgaard, B. 1971. Linkage studies on eceriferum mutants in barley. Barley Genet. Newsl. 1:41-47.

14. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on ear density mutants in barley. Hereditas 58:359-384.

15. Tjio, J.H., and A. Hagberg. 1951. Cytological studies on some X-ray mutants in barley. Anales Estac. Exp. Aula Dei 2:149-167.

Prepared:

U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:170-171.

Revised:

U. Lundqvist and J.D. Franckowiak. 2011. Barley Genet. Newsl. 41:108-109.
 


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