Population genetics and historical introgression of a North American passerine within the genus Sialia

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dc.contributor.authorVeale, Aaron L.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorBurg, Theresa M.
dc.contributor.supervisorReudink, Matthew
dc.date.accessioned2023-09-25T22:30:24Z
dc.date.available2023-09-25T22:30:24Z
dc.date.issued2023
dc.degree.levelMasters
dc.description.abstractThis study analyzed the genetic structure of mountain bluebirds (Sialia currucoides) from across their range using restriction site-associated DNA sequencing to find single nucleotide polymorphisms. I found evidence of at least four distinct genetic clusters, two of which were in Alberta. I then went on to hypothesize current and historical barriers to gene flow. In the third chapter, I examined the mountain bluebird breeding populations in Alberta and Saskatchewan for signals of current and historical hybridization. Although I did not find evidence of recent hybridization, I did detect signals of ancient introgression from both bluebird congeners. I then used both nuclear and mitochondrial DNA to examine the Sialia polytomy containing all three species of bluebirds. The polytomy showed signs of both incomplete lineage sorting between mitochondrial genes and mitonuclear discordance. As such, it appears that hybridization and other potential factors may obscure the evolutionary history of the entire genus.
dc.description.sponsorshipUniveristy of Lethbridge, Thompson Rivers University, Natural Sciences and Engineering Research Council of Canada
dc.identifier.urihttps://hdl.handle.net/10133/6586
dc.language.isoen
dc.proquest.subject0306
dc.proquest.subject0369
dc.proquestyesYes
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences
dc.publisher.departmentDepartment of Biological Sciences
dc.publisher.facultyArts and Science
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)
dc.subjectallele
dc.subjectavian
dc.subjectbird
dc.subjectbluebirds
dc.subjectDNA
dc.subjectgenetics
dc.subjectgenome
dc.subjectglacial refugia
dc.subjecthybrid
dc.subjectintrogression
dc.subjectLGM
dc.subjectloci
dc.subjectpasserine
dc.subjectpopulation genetics
dc.subjectRADseq
dc.subjectSialia
dc.subjectSNP
dc.subjectsongbird
dc.subjectTurdidae
dc.subject.lcshDissertations, Academic
dc.titlePopulation genetics and historical introgression of a North American passerine within the genus Sialia
dc.typeThesis
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