Journal article
Resistance to septoria nodorum blotch in the Aegilops tauschii accession RL5271 is controlled by a single gene
Euphytica, Vol.113(3), pp.227-231
2000
Abstract
Septoria nodorum blotch is the most important leaf disease of wheat in Western Australia. A potentially useful source of resistance has been identified in an accession of Aegilops tauschii. To study the genetics of resistance of this source a cross was made between the resistant Ae. tauschii accession, RL5271, and a susceptible accession, CPI110889. The resistant parent took significantly longer to develop symptoms, developed significantly fewer lesions and expressed significantly lower levels of disease than the susceptible parent. The F1 mean response for disease severity indicated there was no complete dominance. The F3 families were classified using three approaches. In the first approach the individual F3 plant response was used to classify the F3 families. In the second approach the F3 family means and standard errors were used to classify the F3 families. In the final approach Best Linear Unbiased Predictors of disease score and standard error for each F3 family derived from a REML analysis were used to classify the F3 families. The genotypic ratios generated by each of the approaches suggested that resistance is controlled by a single gene. The effectiveness of the resistance and its simple genetic control in the Ae. tauschii, accession RL5271 may be a useful resistance source for use in a bread wheat breeding program.
Details
- Title
- Resistance to septoria nodorum blotch in the Aegilops tauschii accession RL5271 is controlled by a single gene
- Authors/Creators
- N.E.A. Murphy (Author/Creator)R. Loughman (Author/Creator)R. Wilson (Author/Creator)E.S. Lagudah (Author/Creator)R. Appels (Author/Creator)M.G.K. Jones (Author/Creator)
- Publication Details
- Euphytica, Vol.113(3), pp.227-231
- Publisher
- Kluwer Academic Publishers
- Identifiers
- 991005541332207891
- Copyright
- © 2000 Kluwer Academic Publishers
- Murdoch Affiliation
- State Agricultural Biotechnology Centre
- Language
- English
- Resource Type
- Journal article
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- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.636 Fungal Plant Pathogens
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- Horticulture
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