Identification of QTLs associated with resistance to phomopsis pod blight (Diaporthe toxica) in Lupinus albus
Article
Article Title | Identification of QTLs associated with resistance to phomopsis pod blight (Diaporthe toxica) in Lupinus albus |
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ERA Journal ID | 31058 |
Article Category | Article |
Authors | Cowley, Raymond (Author), Luckett, David J. (Author), Ash, Gavin J. (Author), Harper, John D. I. (Author), Vipin, Cina A. (Author), Raman, Harsh (Author) and Ellwood, Simon (Author) |
Journal Title | Breeding Science |
Journal Citation | 64 (1), pp. 83-89 |
Number of Pages | 7 |
Year | 2014 |
Place of Publication | Japan |
ISSN | 0536-3683 |
1344-7610 | |
1347-3735 | |
Digital Object Identifier (DOI) | https://doi.org/10.1270/jsbbs.64.83 |
Web Address (URL) | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4031113/ |
Abstract | Phomopsis blight in Lupinus albus is caused by a fungal pathogen, Diaporthe toxica. It can invade all plant parts, leading to plant material becoming toxic to grazing animals, and potentially resulting in lupinosis. Identifying sources of resistance and breeding for resistance remains the best strategy for controlling Phomopsis and reducing lupinosis risks. However, loci associated with resistance to Phomopsis blight have not yet been identified. In this study, quantitative trait locus (QTL) analysis identified genomic regions associated with resistance to Phomopsis pod blight (PPB) using a linkage map of L. albus constructed previously from an F8 recombinant inbred line population derived from a cross between Kiev-Mutant (susceptible to PPB) and P27174 (resistant to PPB). Phenotyping was undertaken using a detached pod assay. In total, we identified eight QTLs for resistance to PPB on linkage group (LG) 3, LG6, LG10, LG12, LG17 and LG27 from different phenotyping environments. However, at least one QTL, QTL-5 on LG10 was consistently detected in both phenotyping environments and accounted for up to 28.2% of the total phenotypic variance. The results of this study showed that the QTL-2 on LG3 interacts epistatically with QTL-5 and QTL-6, which map on LG10 and LG12, respectively. |
Keywords | DArT, Rqtl, multi-phase experiments, anamorph Phomopsis leptostromiformis, broad-leaf lupin |
ANZSRC Field of Research 2020 | 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 | Charles Sturt University |
Department of Primary Industries, New South Wales | |
Department of Industry and Investment, New South Wales | |
Curtin University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3990/identification-of-qtls-associated-with-resistance-to-phomopsis-pod-blight-diaporthe-toxica-in-lupinus-albus
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