A paper in Cell has really caught the imagination of the media in the past few days. You wouldn’t necessarily be able to guess why from its title, though: “Ancient hybridization underlies tuberization and radiation of the potato lineage.” They reason for all the interest, I guess, is that the hybridization in question was between a potato ancestor with no tubers and a plant that was closer to a tomato. Yes, two genes from distant lineages, neither tuber-forming, combined by chance some 9 million years ago to produce the progenitor of all tuber-bearing potatoes, which then diversified as the Andes were uplifted and themselves diversified. Definitely worth the hoopla.
Jeremy also includes the paper in his latest newsletter.