Data from: Sun skink landscape genomics: assessing how microevolutionary processes shape genetic and phenotypic diversity across a heterogeneous and fragmented landscape

Incorporating genomic data sets into landscape genetic analyses allows for
powerful insights into population genetics, explicitly geographical
correlates of selection, and morphological diversification of organisms
across the geographical template. Here, we utilize an integrative approach
to examine gene flow and detect selection, and we relate these processes
to genetic and phenotypic population differentiation across South-East
Asia in the common sun skink, Eutropis multifasciata. We quantify the
relative effects of geographic and ecological isolation in this system and
find elevated genetic differentiation between populations from island
archipelagos compared to those on the adjacent South-East Asian continent,
which is consistent with expectations concerning landscape fragmentation
in island archipelagos. We also identify a pattern of isolation by
distance, but find no substantial effect of ecological/environmental
variables on genetic differentiation. To assess whether morphological
conservatism in skinks may result from stabilizing selection on
morphological traits, we perform FST–PST comparisons, but observe that
results are highly dependent on the method of comparison. Taken together,
this work provides novel insights into the manner by which
micro-evolutionary processes may impact macro-evolutionary scale
biodiversity patterns across diverse landscapes, and provide genomewide
confirmation of classic predictions from biogeographical and landscape
ecological theory.