Coalescence in a two-population scenario
Coalescence for two individuals sampled from
Population 2. The ancestry of the sample is traced
back in time in red until an MRCA is found in
Population 2. The periods in the tree in which the two
lineages are in the same population (S) and in
different populations (D) are indicated.
Figure © 2013 by Sinauer; Text material © 2017 by Steven M. Carr