Introgression from Populus balsamifera underlies adaptively significant variation and range boundaries in P. trichocarpa.

Abstract excerpt

Introgression can be an important source of adaptive phenotypes, although conversely it can have deleterious effects. Evidence for adaptive introgression is accumulating but information on the genetic architecture of introgressed traits lags behind. Here we determine trait architecture in Populus trichocarpa under introgression from P. balsamifera using admixture mapping and phenotypic analyses. Our results...

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