Reich released "Mitochondrial Genome Diversity of Central Siberian Plateau with Particular Reference to Northernmost Eurasia." The paper examines the mtDNA origins of a few extant but vanishing Siberian groups such as the Ket, Tofalar, Todzhi, and Yukaghir. Native Americans appeared to have emerged from some of the the same demic movements that shaped these people. Here is a link to the paper: