International Database for Barley Genes and Barley Genetic Stocks
BGS 331, Erectoides-n, ert-n
Stock number: BGS 331
Locus name: Erectoides-n
Locus symbol: ert-n
Previous nomenclature and gene symbolization:
Erectoides-51 = ert-51 (3).
Inheritance:
Monofactorial recessive (3, 8).
Located in chromosome 5HL (4, 6, 8); ert-n.51 is about 4.8 cM proximal from the cer-zj (eceriferum-zj) locus (7, 8); ert-n.51 is associated with SNP markers 1_0580 to 2_1244 (positions 54.27 to 91.0 cM) in 5H bins 03 to 05 of the Bowman backcross-derived line BW318 (1). The ert-n locus was previously reported to be very close to the ert-g (erectoides-g) locus (9, 10), which is located in chromosome 1H.
Located in chromosome 5HL (4, 6, 8); ert-n.51 is about 4.8 cM proximal from the cer-zj (eceriferum-zj) locus (7, 8); ert-n.51 is associated with SNP markers 1_0580 to 2_1244 (positions 54.27 to 91.0 cM) in 5H bins 03 to 05 of the Bowman backcross-derived line BW318 (1). The ert-n locus was previously reported to be very close to the ert-g (erectoides-g) locus (9, 10), which is located in chromosome 1H.
Description:
Semicompact spikes occur because rachis internode length is reduced. Rachis internode length values vary from 1.9 to 2.4 mm (8). Mutant lines are about 3/4 normal height. The spike has enlarged lateral spikelets that have a pointed or awnletted tip, and plants show partial sterility not associated with a translocation. Spikes tend to have a whitish color at maturity (8). GA3 treatment of plants as the flag leaf emerges decreases spike density (11). In the Bowman backcross-derived line for ert-n.51, BW318, plants produced few tillers and matured later than Bowman (2). BW318 plants were very sensitive in environmental conditions with heading dates from 2 to 9 days later than Bowman and grain yields ranged from very little to 1/3 of those for Bowman. BW318 plants were 10 to 25% shorter than Bowman, and the number of fertile spikelets increased by about two. The awns of BW318 were shorter 8 vs.11 cm .and rachis internode length averaged 3.9 vs. 4.4 mm. Kernels of BW318 were slightly longer and thinner than Bowman kernels. Kernel weights for BW318 ranged from equal to 40% lower and test weight at one site was 10% lower than that for Bowman (2).
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Origin of mutant:
An X-ray induced mutant in Bonus (NGB 14657, PI 189763) (3).
Mutational events:
ert-n.51 (NGB112650, GSHO 488) in Bonus (NGB 14657, PI 189763) (3); ert-n.61 (NGB 112660), -n.63 (NGB 112662) in Bonus (4); ert-n.133 (NGB 112732), -n.135 (NGB 112734) in Bonus (8); ert-n.325 (NGB 112840), -n.419 (NGB 112935) in Foma (NGB 14659, CIho 11333) (5); ert-n.409 (NGB 112925), -n.464 (NGB 112979) in Foma (8).
Mutant used for description and seed stocks:
ert-n.51 (NGB 112650, GSHO 488) in Bonus; ert-n.51 in Bowman (PI 483237)*3 (GSHO 2107); ert-n.51 in Bowman*6 (BW318, NGB 22113).
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. 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.
4. 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.
5. Lundqvist, U. (Unpublished).
6. Persson, G. 1969. An attempt to find suitable genetic markers for the dense ear loci in barley I. Hereditas 62:25-96.
7. Persson, G., and A. Hagberg. 1962. Linkage studies with the erectoides loci. Barley Newsl. 5:46-47.
8. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative character in barley. Morphology and cytogenetics of erectoides mutants. Hereditas 61:115-178.
9. Søgaard, B. 1974. Three-point tests on chromosome 1 and 7. Barley Genet. Newsl. 4:70-73.
10. Søgaard, B. 1977. The localization of eceriferum loci in barley. IV. Three point tests of genes on chromosome 7 in barley. Carlsberg Res. Commun. 42:35-43.
11. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on ear density mutants in barley. Hereditas 58:359-384.
2. Franckowiak, J.D. (Unpublished).
3. 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.
4. 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.
5. Lundqvist, U. (Unpublished).
6. Persson, G. 1969. An attempt to find suitable genetic markers for the dense ear loci in barley I. Hereditas 62:25-96.
7. Persson, G., and A. Hagberg. 1962. Linkage studies with the erectoides loci. Barley Newsl. 5:46-47.
8. Persson, G., and A. Hagberg. 1969. Induced variation in a quantitative character in barley. Morphology and cytogenetics of erectoides mutants. Hereditas 61:115-178.
9. Søgaard, B. 1974. Three-point tests on chromosome 1 and 7. Barley Genet. Newsl. 4:70-73.
10. Søgaard, B. 1977. The localization of eceriferum loci in barley. IV. Three point tests of genes on chromosome 7 in barley. Carlsberg Res. Commun. 42:35-43.
11. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on ear density mutants in barley. Hereditas 58:359-384.
NGB number url references to Nordic Baltic Genebankes Information System (GENBIS):
- NGB 112650 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112650)
- NGB 112660 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112660)
- NGB 112662 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112662)
- NGB 112732 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112732)
- NGB 112734 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112734)
- NGB 112840 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112840)
- NGB 112925 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112925)
- NGB 112935 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112935)
- NGB 112979 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 112979)
Prepared:
U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:279.
Revised:
U. Lundqvist and J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:120-121.
