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DOI: | 10.1007/s00122-002-1007-0 |
Web URL(s): | https://link.springer.com/article/10.1007/s00122-002-1007-0 Last checked: 12/07/2017 Access conditions: Item is within a limited-access website https://link.springer.com/content/pdf/10.1007%2Fs00122-002-1007-0.pdf Last checked: 12/07/2017 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Warnke, S. E.;
Barker, R. E.;
Brilman, L. A.;
Young, W. C. III;
Cook, R. L. |
Author Affiliation: | Warnke: USDA-ARS, Natural Arboretum, Washington, DC; Barker: USDA-ARS, National Forage Seed Production Research Center, Corvallis, OR; Brilman: Seed Research of Oregon, Corvallis, OR; Young and Cook: Crop and Soil Science Department, Oregon State Univ., Corvallis, OR |
Title: | Inheritance of superoxide dismutase (Sod-1) in a perennial x annual ryegrass cross and its allelic distribution among cultivars |
Source: | Theoretical and Applied Genetics. Vol. 105, No. 8, December 2002, p. 1146-1150. |
Publishing Information: | Berlin, Germany: Springer |
# of Pages: | 5 |
Related Web URL: | https://link.springer.com/article/10.1007/s00122-002-1007-0#Abs1 Last checked: 12/07/2017 Notes: Abstract only |
Keywords: | TIC Keywords: Alleles; Genetic analysis; Lolium perenne; Lolium x hybridum; Seed testing; Superoxide dismutase
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Abstract/Contents: | "Identifying annual ryegrass contamination in perennial ryegrass seed lots has been of major interest in seed-testing laboratories and for seed regulatory agencies in the USA for many years. This study was conducted to characterize a superoxide dismutase locus (Sod-1) and determine its potential to distinguish cultivated ryegrass species. The inheritance of Sod-1 was evaluated in a three-generation annual x perennial ryegrass mapping population and segregation fitted an expected 1:2:1 ratio for a single locus with two alleles. The molecular form of the Sod-1 locus was determined by HO2O2 and KCN inhibitor assays which indicated that the Sod-1, and a second independently segregating Sod-2, locus were both Cu/ZnSod enzymes. The common alleles at the Sod-1 locus were scored in 13 annual and 24 perennial ryegrass cultivars to determine the potential of using this locus for species separation. The Sod-1b allele was homozygous in 98% of perennial ryegrass individuals from 24 cultivars, but those not 100% homozygous for Sod-1b were seed lots with unknown contamination from annual ryegrass. These results indicate that the Sod-1b allele in the homozygous condition is a good indicator of perenniality. All eight annual ryegrass cultivars originating in Europe or Asia had a low frequency of Sod-1b homozygous individuals or none at all. The five cultivars originating in the Western Hemisphere, however, had genotype frequencies for homozygous Sod-1b of up to 56%. The potential of the Sod-1 locus to serve as a test to separate the two growth forms depends on the source of the annual-type contamination." |
Language: | English |
References: | 34 |
Note: | Pictures, b/w Figures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Warnke, S. E., R. E. Barker, L. A. Brilman, W. C. III Young, and R. L. Cook. 2002. Inheritance of superoxide dismutase (Sod-1) in a perennial x annual ryegrass cross and its allelic distribution among cultivars. Theor. Appl. Genet. 105(8):p. 1146-1150. |
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| DOI: 10.1007/s00122-002-1007-0 |
| Web URL(s): https://link.springer.com/article/10.1007/s00122-002-1007-0 Last checked: 12/07/2017 Access conditions: Item is within a limited-access website https://link.springer.com/content/pdf/10.1007%2Fs00122-002-1007-0.pdf Last checked: 12/07/2017 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2203373 |
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