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Biochemical and molecular studies have established that in the peach-potato aphid, Myzus persicae, insecticide resistance is conferred by amplification of genes encoding the insecticide-detoxifying esterases E4 or FE4. Here we report that two insecticide-resistant clones of the closely related tobacco aphid Myzus nicotianae have elevated esterases(More)
The objective of this study was to identify quantitative trait loci (QTL) controlling oil content, fatty acid profile and flowering time in Brassica napus L. This research was conducted using a doubled haploid mapping population derived from a cross of Polo × Topas. The population was phenotyped in four environments. The composite interval method of QTL(More)
Web Services continues to be an important area of adoption by business firms. This study analyzes the critical factors that contribute to an effective Web Services strategy. Focused on an analysis of key firms in the financial services sector, the study examines in a best practices survey, confirmatory detailed case studies and statistical interpretation(More)
Gene sequences encoding putative acetylcholinesterases have been reported for four hemipteran insect species. Although acetylcholinesterase insensitivity occurs in insecticide-resistant populations of each of these species, no mutations were detected in the gene sequences from the resistant insects. This, coupled with a series of experiments using novel(More)
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