Darrel, I will say that I've seen no documentation whatsoever that native Americans brought S.pimpinellifolium or any other varieties from South America from Peru, Chile, etc. to Mexico. It would solve a long standing problem if it did, but no proof whatsoever.
Everything I've read has said there is no proof that humans brought the wild ones, as it were, from S America and bird droppings and even wind have been put forward as possibilities. The question of the pimps going from Chile to the Galapagos Islands I also find interesting and there there's a possibility that humans were involved in that.
Dr. Esther Van der Knapp and others working on the evolution of the tomato is one person I know, and I do know her, still working on it and no doubt she and others are using some of the accessions from the Rick Center as well. I haven't kept contact with her but should, still have her e-mail address and when the snow flies and/or I remember I will do so to find out what I can.
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Carolyn
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