Rogers, SeanVamosi, JanaMcEwen, Jamie2012-09-072012-11-132012-09-062012McEwen, J. (2012). Population divergence and candidate signatures of natural selection in alpine and lowland ecotypes of the allotetrapoloid plant, Anemone multifida (Ranunculaceae) (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27382http://hdl.handle.net/11023/183Adaptation plays a central role in population divergence and speciation. Studying the evolutionary history of populations due to neutral evolutionary processes and the effects of natural selection enables the identification of genes under natural selection in the wild. In this thesis, I conducted a genome scan to elucidate candidate signatures of natural selection in alpine and lowland ecotypes of the allopolyploid plant, Anemone multifida. I found numerous signatures of divergent natural selection between alpine and lowland populations and between alpine populations, but natural selection appeared strongest in alpine environments. These results are consistent with findings in diploid species, but the neutral evolutionary structure of the polyploid A. multifida showed complex patterns of differentiation. Overall, these results indicate divergent natural selection has generated adaptation to alpine and lowland environments despite complex evolutionary history.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.Plant Physiologypopulation genomicsallopolyploidalpine adaptationmaster thesis10.11575/PRISM/27382