Molecular mapping of adult plant stripe rust resistance in wheat and identification of pyramided QTL genotypes
Article
Article Title | Molecular mapping of adult plant stripe rust resistance in wheat and identification of pyramided QTL genotypes |
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ERA Journal ID | 5306 |
Article Category | Article |
Authors | Bariana, H. S. (Author), Bansal, U. K. (Author), Schmidt, A. (Author), Lehmensiek, A. (Author), Kaur, J. (Author), Miah, H. (Author), Howes, N. (Author) and McIntyre, C. L. (Author) |
Journal Title | Euphytica: international journal on plant breeding |
Journal Citation | 176 (2), pp. 251-260 |
Number of Pages | 10 |
Year | 2010 |
Publisher | Springer |
Place of Publication | Dordrecht, Netherlands |
ISSN | 0014-2336 |
1573-5060 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10681-010-0240-x |
Web Address (URL) | http://springerlink.metapress.com/content/g1706310h730682k/ |
Abstract | The Puccinia striiformis f. sp. tritici (Pst) pathotype, 134 E16A+, detected in 2002 in Australia, produced relatively lower and higher adult plant stripe rust responses, respectively, on cultivars Kukri and Janz in comparison to the pre-2002 Pst pathotype 110 E143A+. Molecular mapping of adult plant stripe rust response variation among 180 Kukri/Janz-derived doubled haploid lines over 4 years, two each with Pst pathotypes 110 E143A+ and 134 E16A+, was performed. QYr.sun-7B and QYr.sun-7D were consistently contributed by Kukri and Janz, respectively. QYr.sun-7D corresponded to the genomic location of Yr18 and QYr.sun-7B remains to be formally named. QYr.sun-1B, QYr.sun-5B, and QYr.sun-6B were detected during more than one season irrespective of the Pst pathotypes used, whereas QYr.sun-3B was identified only during the 2003 crop season. QYr.sun-1A contributed by Janz, and QYr.sun-2A from Kukri, were detected only against Pst pathotypes 110 E143A+ and 134 E16A+, respectively. The DH lines showing better resistance than the either parent carried combinations of 4 to 6 QTL. These lines are currently being used as stripe rust resistance donors in wheat breeding programs. |
Keywords | wheat breeding; plant genetics; stripe rust; Puccinia striiformis f. sp. tritici; adult plant resistance; durable resistance; molecular mapping |
ANZSRC Field of Research 2020 | 310510. Molecular evolution |
300406. Crop and pasture improvement (incl. selection and breeding) | |
300409. Crop and pasture protection (incl. pests, diseases and weeds) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Sydney |
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia | |
Centre for Systems Biology |
https://research.usq.edu.au/item/q017w/molecular-mapping-of-adult-plant-stripe-rust-resistance-in-wheat-and-identification-of-pyramided-qtl-genotypes
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