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Genetic mapping of the barley lodging resistance locus Erectoides-k

Skov Kristensen, Peter; Dockter, Christoph; Lundqvist, Udda LU ; Lu, Qiongxian; Gregersen, Per L.; Thordal-Christensen, Hans and Hansson, Mats LU (2016) In Plant Breeding 135(4). p.420-428
Abstract

The barley (Hordeum vulgare L.) mutant erectoides-k.32 (ert-k.32) was isolated in 1947 from an X-ray-mutant population of cultivar ‘Bonus’. The mutant was released as a cultivar in 1958 with the name ‘Pallas’ – one of the first cereal crop cultivars developed from induced mutants. ‘Pallas’ is a semi-dwarf barley cultivar known for its culm stability and resistance to lodging. In total, eight allelic ert-k mutants are known that show different phenotypic strength concerning culm length and spike architecture. They represent alternatives to the widely used, but pleiotropic ‘Green Revolution’ alleles of the Sdw1 (semidwarf1/denso) and Uzu1 (semi-brachytic1) genes in breeding of robust elite barley cultivars. In the present study, we locate... (More)

The barley (Hordeum vulgare L.) mutant erectoides-k.32 (ert-k.32) was isolated in 1947 from an X-ray-mutant population of cultivar ‘Bonus’. The mutant was released as a cultivar in 1958 with the name ‘Pallas’ – one of the first cereal crop cultivars developed from induced mutants. ‘Pallas’ is a semi-dwarf barley cultivar known for its culm stability and resistance to lodging. In total, eight allelic ert-k mutants are known that show different phenotypic strength concerning culm length and spike architecture. They represent alternatives to the widely used, but pleiotropic ‘Green Revolution’ alleles of the Sdw1 (semidwarf1/denso) and Uzu1 (semi-brachytic1) genes in breeding of robust elite barley cultivars. In the present study, we locate Ert-k to a 15.7-cM region in the centromeric region of chromosome 6H. Although the interval is estimated to contain approximately 700 genes, the work provides a solid foundation for the identification of the underlying mutations causing the ert-k lodging-resistant phenotype. In addition, the linked markers could be used to follow the ert-k mutant genotype in marker-assisted selection of new lodging-resistant barley cultivars.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cereal crops, culm stability, Green Revolution, plant architecture, semi-dwarf
in
Plant Breeding
volume
135
issue
4
pages
9 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:84980368670
  • wos:000380961700003
ISSN
0179-9541
DOI
10.1111/pbr.12377
language
English
LU publication?
yes
id
c1ab63f7-daab-4a58-9a0d-f2f51b213e97
date added to LUP
2016-12-15 12:40:17
date last changed
2017-09-18 11:31:27
@article{c1ab63f7-daab-4a58-9a0d-f2f51b213e97,
  abstract     = {<p>The barley (Hordeum vulgare L.) mutant erectoides-k.32 (ert-k.32) was isolated in 1947 from an X-ray-mutant population of cultivar ‘Bonus’. The mutant was released as a cultivar in 1958 with the name ‘Pallas’ – one of the first cereal crop cultivars developed from induced mutants. ‘Pallas’ is a semi-dwarf barley cultivar known for its culm stability and resistance to lodging. In total, eight allelic ert-k mutants are known that show different phenotypic strength concerning culm length and spike architecture. They represent alternatives to the widely used, but pleiotropic ‘Green Revolution’ alleles of the Sdw1 (semidwarf1/denso) and Uzu1 (semi-brachytic1) genes in breeding of robust elite barley cultivars. In the present study, we locate Ert-k to a 15.7-cM region in the centromeric region of chromosome 6H. Although the interval is estimated to contain approximately 700 genes, the work provides a solid foundation for the identification of the underlying mutations causing the ert-k lodging-resistant phenotype. In addition, the linked markers could be used to follow the ert-k mutant genotype in marker-assisted selection of new lodging-resistant barley cultivars.</p>},
  author       = {Skov Kristensen, Peter and Dockter, Christoph and Lundqvist, Udda and Lu, Qiongxian and Gregersen, Per L. and Thordal-Christensen, Hans and Hansson, Mats},
  issn         = {0179-9541},
  keyword      = {cereal crops,culm stability,Green Revolution,plant architecture,semi-dwarf},
  language     = {eng},
  month        = {08},
  number       = {4},
  pages        = {420--428},
  publisher    = {Wiley-Blackwell},
  series       = {Plant Breeding},
  title        = {Genetic mapping of the barley lodging resistance locus Erectoides-k},
  url          = {http://dx.doi.org/10.1111/pbr.12377},
  volume       = {135},
  year         = {2016},
}