Variation in responses to temperature across admixed genotypes of <i>Populus trichocarpa</i> × <i>P. balsamifera</i> predict geographic shifts in regions where hybrids are favored.

ABSTRACT: In a rapidly changing environment, predicting changes in the growth and survival of local populations can inform conservation and management. Plastic responses vary as a result of genetic differentiation within and among species, so accurate rangewide predictions require characterization of genotype-specific reaction norms across the continuum of historic and future climate conditions comprising a species' range. Natural hybrid zones can give rise to novel recombinant genotypes associated with high phenotypic variability, further increasing the variance of plastic responses within the ranges of the hybridizing species. Experiments that plant replicated genotypes across a range of environments can characterize genotype-specific reaction norms; identify genetic, geographic, and climatic fact

SUBMITTER: Mead A 

PROVIDER: S-EPMC12139819 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature