An HMM-Based Comparative Genomic Framework for Detecting Introgression in Eukaryotes
Figure 2
Local genealogies and parental species trees.
The set of genomes (a) have a reticulate evolutionary history, where individuals in B have some genetic material from the common ancestor of B and A, and other genetic material from C (b). In particular, the "blue locus" in the genomes has
as its local genealogy and the "red locus" in the genomes has
as its local genealogy (c). Further, genealogy
for the blue site evolved within the parental species tree
, whereas genealogy
for the red locus evolved within the parental species tree
.