Transgenic disease-resistant wheat does not affect the clonal performance of the aphid Metopolophium dirhodum Walker
| Autor: | Christine B. Müller, Simone von Burg, Jörg Romeis |
|---|---|
| Přispěvatelé: | University of Zurich, von Burg, S |
| Rok vydání: | 2010 |
| Předmět: |
2. Zero hunger
0106 biological sciences clone (Java method) Aphid Transgene food and beverages Metopolophium dirhodum Genetically modified crops Biology biochemical phenomena metabolism and nutrition Fecundity biology.organism_classification 010603 evolutionary biology 01 natural sciences 10127 Institute of Evolutionary Biology and Environmental Studies 1105 Ecology Evolution Behavior and Systematics Agronomy 570 Life sciences biology 590 Animals (Zoology) Gene–environment interaction Ecology Evolution Behavior and Systematics Powdery mildew 010606 plant biology & botany |
| Zdroj: | Basic and Applied Ecology |
| DOI: | 10.1016/j.baae.2010.02.003 |
| Popis: | Ever since the introduction of transgenic crops one of the main concerns has been their potential impact on non-target organisms. In this study we looked at the impact of transgenic disease-resistant wheat on different clones of the aphid Metopolophium dirhodum. Looking at different clones allowed us to assess whether impacts depended on aphid clone and whether there were aphid clone×wheat line interactions (genotype×environment interactions). The performance of 30 aphid clones on four different transgenic wheat lines and their corresponding control lines was studied in a life-table experiment assessing the following aphid life-history parameters: development time, adult weight, daily fecundity, total offspring number and the fitness estimate Fi′. As expected, we found significant variation among aphid clones for all the measured life-history parameters. However, our experiments did not reveal any major impact of the transgenic wheat lines on aphid performance. The only significant difference was found for total offspring number which was reduced by 3.33% on the transgenic wheat lines compared with the control lines. There was no evidence for a genotype×environment interaction between aphid clones and wheat lines. In sum, our results imply that the genetically modified plants used in this assay were of similar host plant quality as the non-transformed control lines and that the introduced transgene had no major effect on the performance of individual aphid clones. |
| Databáze: | OpenAIRE |
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