By using the high coverage Denisova genome, we are able to show
that the admixture rate into East Asians is 40% higher than into
Europeans.Of course, the interesting question is why East Asians
have this excess of Neandertal ancestry, given that Neandertals
were a west Eurasian-distributed species (for the most part).
Similarly, we would not have expected Australo-Melanesians to
possess higher Denisovan admixture, and yet they do. Some models
of multiregional evolution assumed regional continuity with pre-
existing archaic populations in different parts of the world
(e.g., Europeans with Neandertals), but clearly much more
interesting things were taking place in deep prehistory. Of
particular interest is this conclusion: In particular, at least
some Neanderthal-modern human admixture must postdate the
separation of the ancestors of modern European and modern East
Asian populations.The publication of Tianyuan has shown that by
~40kya, differentiation of Asians from Europeans was already on
its way, and this is