The excellent podcast Archaeological Fantasies recently had me on as a guest for a wide ranging discussion on genetics. We covered everything from the genetic prehistory of the Americas to issues surrounding ancestry testing companies. Here’s a link to the episode (apologies for the fact that I kept cutting in and out–apparently our university wireless connection isn’t very good).
Since so much of our discussion focused on haplogroup X2a and models for ancient American prehistory, I decided to break from the normal tradition here at VM and actually re-publish a post to make it easier for people to get answers to any questions they might have. And if you have specific questions about content from the podcast, please feel free to leave them in the comments on this post.
This post was originally published last year to address some questions that Deborah Bolnick and I were getting about our paper “Does Mitochondrial Haplogroup X Indicate Ancient Trans-Atlantic Migration to the Americas? A Critical Re-Evaluation.” I’ve edited it slightly to reflect the fact that the paper itself is now open access, and you should be able to download it here or at my academia.edu page. (I’m actually really shocked at the number of downloads it’s gotten…apparently this is a topic that a lot of people find interesting!).
As soon as my syllabi for the upcoming semester are finished, I will try to write up another post that summarizes recent findings in North American anthropological genetics, and what they mean for our understanding of the initial peopling of the Americas. In the meantime, if you’re interested in ancient DNA I highly recommend you get up to speed on some of the methods by reading this post.