2. X-Origin pipeline: Inferring Geographic Origin of Expansion Under Heterogeneous Spacetime!
Q. He, J. Padro, L. L. Knowles. 2017. Inferring the geographic origin of a range expansion: latitudinal and longitudinal coordinates inferred from genomic data in an ABC framework with the program X-ORIGIN. Mol. Ecol.
Climatic or environmental change is not only driving distributional shifts in species today, but it has also caused distributions to expand and contract in the past. Inferences about the geographic locations of past populations, especially regions that served as refugia (i.e., source populations) and migratory routes are a challenging endeavor. Here we present a pipeline we developed (called X-Origin) for statistically inferring the geographic origin of range expansion based on Ψ-statistics, a spatially explicit coalescent model, and an Approximate Bayesian Computation testing framework.