Comment by dekhn

Do you mean https://en.wikipedia.org/wiki/John_Doebley ? See also https://www.nytimes.com/2010/05/25/science/25creature.html for the story of how maize was traced back to teosinte using hybrids and some literature with more scientific detail: https://www.sciencedirect.com/science/article/pii/0168952592...