What rough timeframe is cited for the genetic split between the wild yak lineage and the domestic yak lineage?

Around the time of the late Pleistocene to early Holocene transition.

Understanding the timeline of divergence is key to tracing the evolution of the two forms of yak. Genetic analysis has been employed to date the point where the ancestral population split into the distinct wild yak (*Bos mutus*) and the lineage that would become the domestic yak (*Bos grunniens*). This separation is estimated to have occurred near the transition between the Pleistocene epoch and the Holocene epoch. Although the precise date of the initial domestication event is still debated, the divergence time between the wild and domestic lineages is often cited as approximately 10,000 years ago, suggesting the wild population was isolated for a significant period before intensive human influence began.