On Sunday night, Mrs. BD had an all-pumpkin supper: Spicy Pumpkin-Apple Soup, Pumpkin Ravioli, and a Profiterole with Pumpkin Ice Cream. It's Pumpkin season, and Pumpkin is good food.
Pumpkin is a winter squash whose original small plant is native to the Americas. For the Eastern American Indians, winter squashes were one of the Three sisters: Squash, Corn (Maize), and Beans. Indians ate healthy, organic whole foods despite, or because, they were genetically-modified foods. They didn't live very long, though. Indians in their 50s were old men while men in their 50s and 60s and 70s today run marathons, pump iron, and climb Alps. My neighbor climbed all of the Dolomites in his 80s by eating steak.
All of those Indian crops had been greatly genetically-modified over 2,000+ years by Native American geneticists, because the wild plants they started with were weeds, hardly worth bothering with. Of course, what we grow now has been greatly improved from the Indian versions.
All humans knew about genetics long before Mendel explained it.