Cereal cultivars can be ranked consistently for resistance to root-lesion nematodes (Pratylenchus thornei & P. neglectus) using diverse procedures
Article
Article Title | Cereal cultivars can be ranked consistently for resistance to root-lesion nematodes (Pratylenchus thornei & P. neglectus) using diverse procedures |
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ERA Journal ID | 2559 |
Article Category | Article |
Authors | Sheedy, J. G. (Author), McKay, A. C. (Author), Lewis, J. (Author), Vanstone, V. A. (Author), Fletcher, S. (Author), Kelly, A. (Author) and Thompson, J. P. (Author) |
Journal Title | Australasian Plant Pathology |
Journal Citation | 44 (2), pp. 175-182 |
Number of Pages | 8 |
Year | 2015 |
Publisher | Springer |
Place of Publication | Dordrecht, Netherlands |
ISSN | 0815-3191 |
1448-6032 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s13313-014-0333-4 |
Web Address (URL) | https://link.springer.com/article/10.1007%2Fs13313-014-0333-4 |
Abstract | The root-lesion nematodes (RLN) Pratylenchus thornei and P. neglectus are widely distributed in Australian grain producing regions and can reduce the yield of intolerant wheat cultivars by up to 65%, costing the industry ~123 M AUD/year. Consequently, researchers in the northern, southern and western regions have independently developed procedures to evaluate the resistance of cereal cultivars to RLN. To compare results, each of the three laboratories phenotyped a set of 26 and 36 cereal cultivars for relative resistance/susceptibility to P. thornei and P. neglectus respectively. The northern and southern regions also investigated the effects of planting time and experiment duration on RLN reproduction and cultivar ranking. Results show the genetic correlation between cultivars tested using the northern and southern procedures evaluating P. thornei resistance was 0.93. Genetic correlations between experiments using the same procedure, but with different planting times, were 0.99 for both northern and southern procedures. The genetic correlation between cultivars tested using the northern, southern and western procedures evaluating P. neglectus resistance ranged from 0.71 to 0.95. Genetic correlations between experiments using the same procedure but with different planting times ranged from 0.91 to 0.99. This study established that, even though experiments were conducted in different geographic locations and with different trial management practices, the diverse nematode resistance screening procedures ranked cultivars similarly. Consequently, RLN resistance data can be pooled across regions to provide national consensus ratings of cultivars. |
Keywords | root-lesion nemotodes; pathogens; wheat; Pratylenchus thornei; Pratylenchus neglectus; breeding |
ANZSRC Field of Research 2020 | 310407. Host-parasite interactions |
300409. Crop and pasture protection (incl. pests, diseases and weeds) | |
300403. Agronomy | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Crop Health |
Department of Primary Industries and Regions, South Australia | |
Department of Agriculture and Food, Western Australia | |
Department of Agriculture and Fisheries, Queensland | |
Event | 19th Biennial Australasian Plant Pathology Society Conference (APPS 2013) |
Institution of Origin | University of Southern Queensland |
Event Details | 19th Biennial Australasian Plant Pathology Society Conference (APPS 2013) Parent Australasian Plant Pathology Society Conference Event Date 25 to end of 28 Nov 2013 Event Location Auckland, New Zealand |
https://research.usq.edu.au/item/q2wq4/cereal-cultivars-can-be-ranked-consistently-for-resistance-to-root-lesion-nematodes-pratylenchus-thornei-p-neglectus-using-diverse-procedures
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