Spatially variable natural selection and the divergence between parapatric subspecies of lodgepole pine (<i>Pinus contorta</i>, Pinaceae)

Abstract

Spatially variable natural selection along gradients of aluminum and phosphate ion concentrations likely accounted for both outliers. These results shed light on some of the genetic components comprising the extended phenotype of this ecosystem, as well as highlight ecotones as fruitful study systems for the detection of adaptive genetic variants.