Figure 4. Genome-wide genetic differentiation
(FST), regional variation in absolute divergence
(DXY), Tajima’s D (TD) and
nucleotide diversity (θπ) in eastern and western
monarchs. These summary statistics were calculated in non-overlapping
windows of 10kb across the genome. The alternating gray blocks represent
different chromosomes in the genome. FST andDXY are between-group comparisons, and a single
yellow line is shown for these measures. In contrast, Tajima’s D
(Td ) and nucleotide diversity
(θπ ) are group-specific measures, and eastern and
western monarchs are indicated with black and red respectively; due to
genome-wide overlap, the black (eastern) data are mostly hidden behind
the red (western) data.