Highly heritable resistance to root-lesion nematode (Pratylenchus thornei) in Australian chickpea germplasm observed using an optimised glasshouse method and multi-environment trial analysis
Article
Article Title | Highly heritable resistance to root-lesion nematode (Pratylenchus thornei) in Australian chickpea germplasm observed using an optimised glasshouse method and multi-environment trial analysis |
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ERA Journal ID | 2559 |
Article Category | Article |
Authors | Rodda, M. S. (Author), Hobson, K. B. (Author), Forknall, C. R. (Author), Daniel, R. P. (Author), Fanning, J. P. (Author), Pounsett, D. D. (Author), Simpfendorfer, S. (Author), Moore, K. J. (Author), Owen, K. J. (Author), Sheedy, J. G. (Author), Thompson, J. P. (Author), Hollaway, G. J. (Author) and Slater, A. T. (Author) |
Journal Title | Australasian Plant Pathology |
Journal Citation | 45 (3), pp. 309-319 |
Number of Pages | 11 |
Year | 2016 |
Publisher | Springer |
Place of Publication | Netherlands |
ISSN | 0815-3191 |
1448-6032 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s13313-016-0409-4 |
Web Address (URL) | http://link.springer.com/article/10.1007/s13313-016-0409-4 |
Abstract | Pratylenchus thornei is a root-lesion nematode (RLN) of economic significance in the grain growing regions of Australia. Chickpea (Cicer arietinum) is a significant legume crop grown throughout these regions, but previous testing found most cultivars were susceptible to P. thornei. Therefore, improved resistance to P. thornei is an important objective of the Australian chickpea breeding program. A glasshouse method was developed to assess resistance of chickpea lines to P. thornei, which requires relatively low labour and resource input, and hence is suited to routine adoption within a breeding program. Using this method, good differentiation of chickpea cultivars for P. thornei resistance was measured after 12 weeks. Nematode multiplication was higher for all genotypes than the unplanted control, but of the 47 cultivars and breeding lines tested, 17 exhibited partial resistance, allowing less than two fold multiplication. The relative differences in resistance identified using this method were highly heritable (0.69) and were validated against P. thornei data from seven field trials using a multi-environment trial analysis. Genetic correlations for cultivar resistance between the glasshouse and six of the field trials were high (>0.73). These results demonstrate that resistance to P. thornei in chickpea is highly heritable and can be effectively selected in a limited set of environments. the improved resistance found in a number of the newer chickpea cultivars tested shows that some advances have been made in the P. thornei resistance of Australian chickpea cultivars, and that further targeted breeding and selection should provide incremental improvements. |
Keywords | plant breeding; resistance screening; Cicer reticulatum; Cicer echinospermum |
ANZSRC Field of Research 2020 | 300406. Crop and pasture improvement (incl. selection and breeding) |
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 | Department of Economic Development, Jobs, Transport and Resources, Victoria |
Department of Primary Industries, New South Wales | |
Department of Agriculture and Fisheries, Queensland | |
Northern Grower Alliance, Australia | |
Agriculture Victoria | |
Department of Primary Industries and Regions, South Australia | |
Centre for Crop Health | |
La Trobe University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3691/highly-heritable-resistance-to-root-lesion-nematode-pratylenchus-thornei-in-australian-chickpea-germplasm-observed-using-an-optimised-glasshouse-method-and-multi-environment-trial-analysis
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