Figure 4
From: Origin and dispersal of early domestic pigs in northern China

Temporal transition of mtDNA control region haplotypes of ancient Chinese pigs in different regions. The upper left map shows the location of the investigated region within China. From left to right and top to bottom: Time series of maps identifying the locations and haplotypes of ancient pig samples from which DNA sequences were obtained. Each symbol corresponds to a single sample. Different colours indicate different haplotypes (see lower right panel of the figure). The pie chart at the lower right shows the proportions of the different haplotypes in present day Chinese pigs. 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).