Regular letters refer to non-significant results and bold letters refer
to significant correlations. Geo, geographical distance; Gen, genetic
distance; Env, environmental distance.
3.3.
Outlier analyses and MLR analysis
BayeScan determined 71 loci as outliers with a log10PO
above 2,
which
is a threshold for adequate
evidence for accepting a model
under selection, corresponding to a posterior probability greater than
0.99 (Figure 3A ). Using the Dfdist, we identified 126 adaptive
loci at the 99.5% confidence intervals (Figure 3B) . 42 outlier
loci were identified using two complementary analyses.
The
extremely strict significance criteria in the two approaches also
assured the robustness of 42 outlier loci. Lastly, 21 potential loci
under
selection
were verified by the MLR analysis withRadj2 > 0.5
(Table 4 ). When we ran linear regressions using each
environmental variable individually, all these eleven environmental
variables were associated with the potential loci under selection and 30
loci were significantly (P< 0.05)
associated
with at least one of the eleven selected environmental variables.