Fig. 4From: Population genomics reveal rapid genetic differentiation in a recently invasive population of Rattus norvegicusDemographic history and population relationships for XJ rats. a Inferred population demographic history between XJ and northern China rats using the joint site frequency spectra in δaδi [30]. Northern China included NW, NC, and NE. b Tree topology inferred from TreeMix [31]. Group IDs correspond to those in Fig. 1Back to article page