| Title: | Comparison between volatile emissions from transgenic apples and from two representative classically bred apple cultivars |
| Author(s): | Vogler U; Rott AS; Gessler C; Dorn S; |
| Address: | "ETH Zurich, Institute of Plant Sciences/Applied Entomology, Schmelzbergstrasse 9/LFO, 8092 Zurich, Switzerland" |
| DOI: | 10.1007/s11248-009-9294-8 |
| ISSN/ISBN: | 1573-9368 (Electronic) 0962-8819 (Linking) |
| Abstract: | "While most risk assessments contrast a transgenic resistant to its isogenic line, an additional comparison between the transgenic line and a classically bred cultivar with the same resistance gene would be highly desirable. Our approach was to compare headspace volatiles of transgenic scab resistant apple plants with two representative cultivars (the isogenic 'Gala' and the scab resistance gene-containing 'Florina'). As modifications in volatile profiles have been shown to alter plant relationships with non-target insects, we analysed headspace volatiles from apple plants subjected to different infection types by gas chromatography-mass spectrometry. Marked differences were found between healthy and leafminer (Phyllonorycter blancardella) infested genotypes, where emissions between the transgenic scab resistant line and the two cultivars differed quantitatively in four terpenes and an aromatic compound. However, these modified odour emissions were in the range of variability of the emissions recorded for the two standard cultivars that proved to be crucial references" |
| Keywords: | "Breeding Crops, Agricultural/genetics/metabolism Genotype Immunity, Innate/genetics/immunology Malus/*chemistry/genetics/*metabolism Plant Diseases/genetics/immunology Plants, Genetically Modified/chemistry/genetics/*metabolism Spores, Fungal/cytology Vol;" |
| Notes: | "MedlineVogler, Ute Rott, Anja S Gessler, Cesare Dorn, Silvia eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2009/06/23 Transgenic Res. 2010 Feb; 19(1):77-89. doi: 10.1007/s11248-009-9294-8. Epub 2009 Jun 19" |
