Figure 1
From: Origin and dispersal of early domestic pigs in northern China
Locations of samples. The orange dots depict all sites from which we retrieved ancient pig sequences. The inset shows the location of the region within China. The maps are modified from free map materials deposited in the public database of National Administration of Surveying, Mapping and Geoinformation (http://219.238.166.215/mcp/index.asp).
