The effect of the a genome species (Triticum monococcum and Triticum boeoticum) on the fecundity and behaviour of Rhopalosiphum padi – bird cherry-oat aphid
Keywords:
Triticum monociccum, Triticum boeoticum, Triticum aestivum, Rhopalosiphum padi, aphid behaviour, aphid fecundityAbstract
Triticum monococcum is an A genome diploid species that is closely related to and cross-fertile with T. uratu which is now accepted as the donor of the A genome in the hexaploid bread wheat (T. aestivum). Ancestral A genome species present good potential sources for further crop improvement through synthetic polyploidisation and introgression into modern wheat cultivars. In this study we examined the antibiotic and antixenotic effect of different A genome diploid species and accessions on the aphid Rhopalosiphum padi. In choice tests most of the lines were less attractive to R.padi and showed reduction in aphid weight gain and fecundity compared to the hexaploid control. We found through HPLC studies that seedling leaf tissue of the A genome species T. monococcum and T. boeoticum did not contain the hydroxamic acids found in tetraploid and hexaploid wheats, but did produce two compounds present in the same retention range. Increased production of both unknown compounds was recorded in the later seedling growth stage, which may have an effect on aphid development, but not as strongly as we have previously seen in the presence of high amount of hydroxamic acids in the B genome species Aegilops speltoides.
References
Baumeler, A., Hesse, M. and Werner, C. 2000. Benzoxazinoids-cyclic hydroxamic acids, lactams and their corresponding glucosides in the genus Aphelandra (Acanthaceae). Phytochemistry. 53. 213–222. https://doi.org/10.1016/S0031-9422(99)00508-7
Givovich, A. and Niemeyer, H. M. 1991. Hydroxamic acids affecting barley yellow dwarf virus transmission by the aphid Rhopalosiphum padi. Entomologia Experimentalis et Applicata. 59 (1) 79–85. https://doi.org/10.1111/j.1570-7458.1991.tb01489.x
Hand, C. S. 1989. The overwintering of cereal aphids on Gramineae in southern England, Annals of Applied Biology. 115. 17–29. https://doi.org/10.1111/j.1744-7348.1989.tb06807.x
Leather, S. R. 1993. Overwintering in six arable aphid pests: a review with particular relevance to pest management. Journal of Applied Entomology. 116. 217–233. https://doi.org/10.1111/j.1439-0418.1993.tb01192.x
Nevo, E., Korol, A. B., Beiles, A. and Fahima, T. 2002. Evolution of wild emmer and wheat improvement. Springer, Germany. 4–8. https://doi.org/10.1007/978-3-662-07140-3
Nicol, D., Copaja, S. V., Wratten, S. D. and Niemeyer, H. M. 1992. A screen of worldwide wheat cultivars for hydroxamic acid levels and aphid antixenosis. Annals of Applied Biology. 121. 11–18. https://doi.org/10.1111/j.1744-7348.1992.tb03982.x
Nomura, T., Ishihara, A., Iwamura, H. and Endo, T. R. 2007. Molecular characterisation of benzoxazinone - deficient mutation in diploid wheat. Phytochemistry. 68 (7) 1008–1016. https://doi.org/10.1016/j.phytochem.2007.01.007
Petersen, G., Seberg, O., Yde, M. and Berthelsen, K. 2006. Phylogenetic relationship of Triticum and Aegilops and evidence for the origin of the A, B and D genomes of common wheat (Triticum aestivum). Molecular Phylogenetics and Evolution. 39 (1) 70–82. https://doi.org/10.1016/j.ympev.2006.01.023
Powell, G. and Hardie, J. 2001. The chemical ecology of aphid host alternation: How do return migrants find the primary host plant? Applied Entomology and Zoology. 36 (3) 259–267. https://doi.org/10.1303/aez.2001.259
Powell, G., Tosh, C. R. and Hardie, J. 2006. Host plant selection by aphids: behavioral, evolutionary, and applied perspectives. Annual Review Entomology. 51. 309–330. https://doi.org/10.1146/annurev.ento.51.110104.151107
Thackray, D. J., Diggle, A. J. and Jones, R. A. C. 2009. BYDV predictor: a simulation model to predict aphid arrival, epidemics of Barley yellow dwarf virus and yield losses in wheat crops in a Mediterranean - type environment. Plant Pathology. 58. 186–202. https://doi.org/10.1111/j.1365-3059.2008.01950.x
Wyatt, J. I. and White, F. P. 1977. Simple estimation of intrinsic rates for aphids and tetranychid mites. Journal of Applied Ecology. 14. 757–766. https://doi.org/10.2307/2402807
Zohary, D. and Hopf, M. 1993. Domestication of plants in the Old World: the origin and spread of cultivated plants in West Asia, Europe, and the Nile Valley, 2nd ed. Oxford, Oxford University Press. 1977–1980.
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Copyright (c) 2012 Henriett Elek, Janet Martin, Shakoor Ahmad, Péter Werner, Anda Angela, John Pickett, Lesley Smart
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