Journal article
Prevalence of ToxA-sensitive alleles of the wheat gene Tsn1 in Australian and Chinese wheat cultivars
Crop and Pasture Science, Vol.60(4), pp.348-352
2009
Abstract
A recent survey of worldwide isolates of Stagonospora nodorum showed that all Australian isolates expressed the host-specific toxin ToxA (Stukenbrock and McDonald 2007). In contrast, very few Chinese isolates did. All the Australian Pyrenophora tritici-repentis isolates that were tested expressed ToxA. We therefore postulated that the wheat gene that confers sensitivity to ToxA, Tsn1, would vary in prevalence in wheat cultivars in use in the two countries. Contrary to expectation, 10 out of 21 Chinese cultivars responded to ToxA as did 26 out of 46 Australian cultivars. The result suggests that ToxA has not had a determining effect on the survival of wheat cultivars in either country. They also suggest that despite the widespread use of Tsn1 markers in Australia, sensitive alleles are still commonplace. The removal of sensitive alleles from breeders' lines could be readily achieved and could significantly affect the resistance of wheat to both diseases.
Details
- Title
- Prevalence of ToxA-sensitive alleles of the wheat gene Tsn1 in Australian and Chinese wheat cultivars
- Authors/Creators
- R.P. Oliver (Author/Creator)K. Rybak (Author/Creator)P.S. Solomon (Author/Creator)M. Ferguson-Hunt (Author/Creator)
- Publication Details
- Crop and Pasture Science, Vol.60(4), pp.348-352
- Publisher
- CSIRO Publishing
- Identifiers
- 991005540417707891
- Copyright
- © 2009 CSIRO
- Murdoch Affiliation
- Australian Centre for Necrotrophic Fungal Pathogens; School of Veterinary and Biomedical Sciences
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.636 Fungal Plant Pathogens
- Web Of Science research areas
- Agriculture, Multidisciplinary
- ESI research areas
- Agricultural Sciences