Quantitative trait loci and epistatic interactions in barley conferring resistance to net type net blotch (Pyrenophora teres f. teres) isolates

S. Gupta; C. Li; R. Loughman; M. Cakir; G. Platz; S. Westcott; J. Bradley; S. Broughton; R. Lance

doi:10.1111/j.1439-0523.2009.01716.x

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Quantitative trait loci and epistatic interactions in barley conferring resistance to net type net blotch (Pyrenophora teres f. teres) isolates

Journal article

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Quantitative trait loci and epistatic interactions in barley conferring resistance to net type net blotch (Pyrenophora teres f. teres) isolates

S. Gupta, C. Li, R. Loughman, M. Cakir, G. Platz, S. Westcott, J. Bradley, S. Broughton and R. Lance

Plant Breeding, Vol.129(4), pp.362-268

2010

DOI: https://doi.org/10.1111/j.1439-0523.2009.01716.x

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Abstract

Net type net blotch (NTNB) is an important barley disease in Australia and elsewhere, with significant yield reduction. This trait is important in selection along with other traits of quality and agronomic value. Two-hundred doubled-haploid lines were generated through anther culture from a cross between 'Pompadour' and 'Stirling'. Quantitative trait loci (QTL) were identified against five isolates of Pyrenophora teres f. teres, which represent virulences across Australia. QTL were mapped on chromosomes 3H and 6H using simple sequence repeat (SSR) markers. The resistance locus on 6H was detected with all isolates while the 3H locus was detected with two isolates. The 6H QTL from 'Pompadour' contributed resistance to isolates 97NB1, 95NB100 and NB81, whereas 6H QTL from 'Stirling' contributed resistance to isolates NB50 and NB52B. The 3H QTL from 'Pompadour' contributed resistance to NB50 and NB52B. Significant epistatic interactions were detected between QTL on 3H and 6H. These resistance QTL are a useful resource and identifying closely linked SSR markers with allelic combinations will facilitate in marker-assisted selection to develop NTNB resistant breeding lines.

Details

Title: Quantitative trait loci and epistatic interactions in barley conferring resistance to net type net blotch (Pyrenophora teres f. teres) isolates
Authors/Creators: S. Gupta (Author/Creator) - Government of Western Australia
C. Li (Author/Creator) - Government of Western Australia
R. Loughman (Author/Creator) - Government of Western Australia
M. Cakir (Author/Creator) - Murdoch University
G. Platz (Author/Creator) - Department of Primary Industries & Fisheries, Hermitage Research Station, Warwick, Queensland 4370, Australia
S. Westcott (Author/Creator) - Murdoch University
J. Bradley (Author/Creator) - Government of Western Australia
S. Broughton (Author/Creator) - Government of Western Australia
R. Lance (Author/Creator) - Government of Western Australia
Publication Details: Plant Breeding, Vol.129(4), pp.362-268
Publisher: Blackwell Publishing Inc.
Identifiers: 991005543578407891
Copyright: © 2009 Blackwell Verlag GmbH.
Murdoch Affiliation: State Agricultural Biotechnology Centre; School of Biological Sciences and Biotechnology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.97 Plant Pathology; 3.97.636 Fungal Plant Pathogens
Web Of Science research areas: Agronomy; Biotechnology & Applied Microbiology; Plant Sciences
ESI research areas: Plant & Animal Science