Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Molecular mapping of rust resistance genes and marker-assisted breeding in wheat

Cakir, M., Drake-Brockman, F., Shankar, M., Golzar, H., Kollehn, D., McLean, R., Bariana, H., Wilson, R., Barclay, I., Moore, C., Kuchel, H., Jones, M.ORCID: 0000-0001-5002-0227 and Loughman, R. (2009) Molecular mapping of rust resistance genes and marker-assisted breeding in wheat. In: BGRI 2009 Technical Workshop, 17 - 20 March 2009, Obregon, Sonora, Mexico.

Abstract

Molecular markers make possible the deployment of multiple rust genes in adapted elite lines. In this study we report a summary of the microsatellite tagging of a number of leaf rust, stem rust and stripe rust resistance genes from a variety of sources. Segregating Leichardt/ WAWHT2071 and Sunland/Arrino populations were used for mapping Lr13 and Lr28 where Leichardt and Sunland were the respective sources of the resistance genes. Lines C77.19/3*77W:549-163658 and Sr33 /2*Shortim//4*3/Jacup resistance lines were used as sources of Sr32 and Sr33 . F 2 and F 2:3 populations were used for microsatellite tagging of the genes. Very closely linked SSR markers were identified for Lr13 , Lr28 , Sr32 and Sr33 on chromosomes 2BS, 4AL, 2BS and 1DS, respectively. Results from field-based studies of various mapping populations for the characterization of adult plant rust (APR) resistances from a variety of sources such as Wyalkatchem, Yitpi and Frame will also be discussed. Molecular markers for a range of other rust resistance genes ( Lr9, Lr19/Sr25, Lr24/Sr24, Lr34/ Yr18 Lr46/Yr29, Lr47, Sr26 and Sr36 ) are currently being implemented for variety development and germplasm enhancement. The likely impact of these applications on wheat improvement will be discussed.

Item Type: Conference Item
Murdoch Affiliation: Western Australian State Agricultural Biotechnology Centre
Conference Website: http://www.globalrust.org/traction/project/knowled...
URI: http://researchrepository.murdoch.edu.au/id/eprint/19330
Item Control Page Item Control Page