Genetic analysis of resistance to root-lesion nematode (Pratylenchusthornei) in wheat
Article
Article Title | Genetic analysis of resistance to root-lesion nematode (Pratylenchusthornei) in wheat |
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ERA Journal ID | 5322 |
Article Category | Article |
Authors | Zwart, R. S., Thompson, J. P. and Godwin, I. D. |
Journal Title | Plant Breeding |
Journal Citation | 123 (3), pp. 209-212 |
Number of Pages | 5 |
Year | Jun 2004 |
Publisher | John Wiley & Sons |
Place of Publication | Germany |
ISSN | 0179-9541 |
1439-0523 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/j.1439-0523.2004.00986.x |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1439-0523.2004.00986.x |
Abstract | The inheritance of resistance to root-lesion nematode was investigated in five synthetic hexaploid wheat lines and two bread wheat lines using a half-diallel design of F1 and F2 crosses. The combining ability of resistance genes in the synthetic hexaploid wheat lines was compared with the performance of the bread wheat line 'GS50a', the source of resistance to Pratylenchus thornei used in Australian wheat breeding programmes. Replicated glasshouse trials identified P. thornei resistance as polygenic and additive in gene action. General combining ability (GCA) of the parents was more important than specific combining ability (SCA) effects in the inheritance of P. thornei resistance in both F1 and F2 populations. The synthetic hexaploid wheat line 'CPI133872' was identified as the best general combiner, however, all five synthetic hexaploid wheat lines possessed better GCA than 'GS50a'. The synthetic hexaploid wheat lines contain novel sources of P. thornei resistance that will provide alternative and more effective sources of resistance to be utilized in wheat breeding programmes. |
Keywords | Triticum aestivum; Pratylenchus thornei; combining ability; diallel crosses; root-lesion nematode; synthetic hexaploid wheat |
ANZSRC Field of Research 2020 | 300406. Crop and pasture improvement (incl. selection and breeding) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Department of Primary Industries, Queensland |
University of Queensland |
https://research.usq.edu.au/item/w3w03/genetic-analysis-of-resistance-to-root-lesion-nematode-pratylenchusthornei-in-wheat
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