Prevalence of ToxA-sensitive alleles of the wheat gene Tsn1 in Australian and Chinese wheat cultivars
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Oliver, Richard Peter; Rybak, Kasia; Solomon, Peter; Ferguson-Hunt, Margo
Description
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...[Show more]
dc.contributor.author | Oliver, Richard Peter | |
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dc.contributor.author | Rybak, Kasia | |
dc.contributor.author | Solomon, Peter | |
dc.contributor.author | Ferguson-Hunt, Margo | |
dc.date.accessioned | 2015-12-07T22:17:43Z | |
dc.identifier.issn | 1836-0947 | |
dc.identifier.uri | http://hdl.handle.net/1885/18704 | |
dc.description.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. | |
dc.publisher | CSIRO Publishing | |
dc.source | Crop and Pasture Science | |
dc.subject | Keywords: allele; cultivar; disease resistance; gene expression; genetic marker; host specificity; wheat; Phaeosphaeria nodorum; Pyrenophora tritici-repentis; Triticum aestivum | |
dc.title | Prevalence of ToxA-sensitive alleles of the wheat gene Tsn1 in Australian and Chinese wheat cultivars | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 60 | |
dc.date.issued | 2009 | |
local.identifier.absfor | 060704 - Plant Pathology | |
local.identifier.absfor | 060411 - Population, Ecological and Evolutionary Genetics | |
local.identifier.ariespublication | u4632004xPUB5 | |
local.type.status | Published Version | |
local.contributor.affiliation | Oliver, Richard Peter, Murdoch University | |
local.contributor.affiliation | Rybak, Kasia, Murdoch University | |
local.contributor.affiliation | Solomon, Peter, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Ferguson-Hunt, Margo, Murdoch University | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.startpage | 348 | |
local.bibliographicCitation.lastpage | 352 | |
local.identifier.doi | 10.1071/CP08259 | |
dc.date.updated | 2016-02-24T11:15:24Z | |
local.identifier.scopusID | 2-s2.0-65349096275 | |
local.identifier.thomsonID | 000265354800005 | |
Collections | ANU Research Publications |
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