Proteomic analysis of MON810 and comparable non-GM maize varieties grown in agricultural fields

被引:37
作者
Coll, Anna [1 ]
Nadal, Anna [1 ]
Rossignol, Michel [2 ]
Puigdomenech, Pere [3 ]
Pla, Maria [1 ]
机构
[1] Univ Girona, Inst Food & Agr Technol INTEA, EPS I, Girona 17071, Spain
[2] Natl Inst Agr Res INRA, LPF, UR1199, F-34060 Montpellier 01, France
[3] CSIC IRTA UAB, Ctr Res Agr Genom, Barcelona 08034, Spain
关键词
Genetically Modified Organism (GMO); MON810; Proteome; Two-dimensional gel electrophoresis (2DE); Mass spectrometry (MS); Unexpected effects; Maize; 2-DIMENSIONAL GEL-ELECTROPHORESIS; GENETICALLY-MODIFIED ORGANISMS; TRANSGENIC MAIZE; SUBSTANTIAL EQUIVALENCE; COMMERCIAL VARIETIES; GENE-EXPRESSION; MARKER GENES; WILD-TYPE; TRANSCRIPTOME; WHEAT;
D O I
10.1007/s11248-010-9453-y
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Worldwide maize is the second major agricultural commodity and around one-fourth is currently biotech, with significant application of the insect resistant event MON810 particularly in the European Union. Grains are the major commercialized part of the plant, and can be harvested after maturity (for food and feed purposes) or at late milky-starchy stage (for forage uses, with the whole plant). We assessed possible proteomic unintended effects of the MON810 transgene using two-dimensional gel electrophoresis coupled to mass spectrometry. To keep in a realistic scenario we used plants grown in agricultural fields in a region where similar to 50% of maize was MON810, and analyzed grains at milky-starchy stage. In maize, differential transcripts and metabolites between GM and comparable non-GM varieties tend to be variety specific. Thus, we analyzed two variety pairs, DKC6575/Tietar and PR33P67/PR33P66 which are considered representative of Food and Agriculture Organization 700 and 600 varieties commercially grown in the region. MON810 and non-GM milky-starchy grains had virtually identical proteomic patterns, with a very small number of spots showing fold-variations in the 1-1.8 range. They were all variety specific and had divergent identities and functions. Although 2DE allows the analysis of a limited dataset our results support substantial equivalence between MON810 and comparable non-GM varieties.
引用
收藏
页码:939 / 949
页数:11
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