Strategies for fine mapping QTLs for crown rot resistance in wheats

Bovill, W. D. and Collard, B. C. Y. and Lehmensiek, Anke and Wildermuth, G. B. and Sutherland, Mark W. (2005) Strategies for fine mapping QTLs for crown rot resistance in wheats. In: 15th Biennial Australasian Plant Pathology Society Conference, 26-29 Sep 2005, Geelong, Australia.

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Abstract

[Introduction]: Crown rot (causal organism Fusarium pseudograminearum) is of great significance to wheat yields within Australia, with losses estimated at $56M per annum. As part of the Australian Winter Cereals Molecular Marker Project (AWCMMP), our group has been responsible for identifying molecular markers for quantitative trait loci (QTLs) that contribute to crown rot resistance. Using a number of double-haploid mapping populations, we have identified genomic regions that are associated with resistance. While the markers flanking these QTLs will be of use to breeding programs for marker assisted selection, how these QTLs function in conferring resistance is not understood. This apper outlines QTLs identified in two double-haploid populations, and discusses the use of resistance gene analog (RGA) markers and rice-wheat synteny as strategies that may be helpful for understanding the underlying mechanisms for resistance.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Poster)
Refereed: No
Item Status: Live Archive
Additional Information: Original format was an unrefereed conference poster, which is not made available per request of authors. Being prepared for separate publication.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:28
Last Modified: 25 Sep 2013 01:56
Uncontrolled Keywords: wheat, crown rot, fusarium pseudograminearum, resistance, molecular markers, quantitative trait loci, QTL
Fields of Research (FOR2008): 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070305 Crop and Pasture Improvement (Selection and Breeding)
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070303 Crop and Pasture Biochemistry and Physiology
URI: http://eprints.usq.edu.au/id/eprint/794

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