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Resistance to root-lesion nematode Pratylenchus neglectus identified in a new collection of two wild chickpea species (Cicer reticulatum and C. echinospermum) from Turkey

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Rostad, H. E., Reen, R. A., Mumford, M. H., Zwart, R. S. and Thompson, J. P. (2022) Resistance to root-lesion nematode Pratylenchus neglectus identified in a new collection of two wild chickpea species (Cicer reticulatum and C. echinospermum) from Turkey. Plant Pathology, n/a (n/a). ISSN 0032-0862

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Article Link(s): https://doi.org/10.1111/ppa.13544

Publisher URL: https://bsppjournals.onlinelibrary.wiley.com/doi/abs/10.1111/ppa.13544

Abstract

Abstract Chickpea (Cicer arietinum) is a major legume crop, with Australia being the second largest producer worldwide. Pratylenchus neglectus is a root-lesion nematode that invades, feeds and reproduces in roots of pulse and cereal crops. In Australia, chickpea and wheat (Triticum aestivum) are commonly grown in rotation and annual damage by P. neglectus accounts for large economic losses to both crops. Cultivated chickpea has narrow genetic diversity that limits the potential for improvement in resistance breeding. New collections of wild chickpea species, C. reticulatum and C. echinospermum, have substantially increased the previously limited world collection of wild Cicer germplasm and offer potential to widen the genetic diversity of cultivated chickpea through the identification of accessions with good resistance. This research assessed 243 C. reticulatum and 86 C. echinospermum accessions for response to P. neglectus in replicated experiments under controlled glasshouse conditions from 2013 and 2014 collection missions that were received, tested and analysed in two experimental sets. Multi-experiment analyses showed lower P. neglectus population densities in both sets of wild Cicer accessions tested than Australia's elite breeding cultivar PBA HatTrick at the significance level p < 0.05. Provisional resistance ratings were given to all genotypes tested in both experimental sets, with C. reticulatum accessions CudiB_008B and Kayat_066 rated as resistant in both Set 1 and Set 2. New sources of resistance to P. neglectus observed in this study can be introgressed into commercial chickpea cultivars to improve their resistance to this nematode.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:Open access
Keywords:Cicer arietinum, Cicer echinospermum, Cicer reticulatum, crop wild relatives, Pratylenchus neglectus, root- lesion nematode
Subjects:Plant culture > Food crops
Plant culture > Field crops
Plant pests and diseases
Plant pests and diseases > Plant pathology
Deposited On:14 Mar 2022 01:25
Last Modified:10 May 2022 02:02

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