I stumbled upon this Wikipedia page for the Triangle of U, which as far as I understand is a phenomenon whereby three different genomes, in different combinations, create different crops, including: turnips, kale, different mustard species, cauliflower and rapeseed (canola).  I’m terrible at even basic biology, but this seems so amazing to me. I’d love to get some feedback in the comments if anybody knows if this is more common than I think.