We have collected different ecotypes of wild plants species, we intend to evaluate their ability to produce antioxidants by measuring the gene expression of such antioxidant, is that make sens?
It would be an interesting approach, however, I would suggest to check chemical compositions as well. These will tell you how geographical change affects chemical compositions as well as pharmacology of the inhabitants.
It is really interesting. Regarding your question, each plant type has different ability of producing Antioxidants, but in case you took your samples from same type growing in different geographical sites that would be great to compare and see the effect of geography on the chemical composition.