>>151551665
>...issue arises from the dual ancestry of the modern Japanese peoples, namely the Jōmon and the Yayoi. The Jōmon were hunter-gatherers, but then the Yayoi show up from the Korean peninsula around 300 BCE bringing wet rice cultivation and bronze tech. So the genetic admixture starts. But here’s the thing: it’s not a simple replacement, it’s continuity with admixture! The Ainu? Mostly Jōmon descent. Ryukyuans? Also higher Jōmon ancestry. Modern Honshu Japanese? Roughly a 10:90 Jōmon-to-Yayoi ratio. And then you’ve got the Kofun period elites forming the Yamato state, but that’s when continental influence really ramps up...