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Mitochondrial DNA diversity in North American herpetofauna: molecular evolution, diversification, and DNA barcoding

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dc.contributor.advisor Hebert, Paul D.N.
dc.contributor.author Chambers, E. Anne
dc.date.accessioned 2014-05-16T18:46:07Z
dc.date.available 2014-05-16T18:46:07Z
dc.date.copyright 2013-12
dc.date.created 2014-05-12
dc.date.issued 2014-05-16
dc.identifier.uri http://hdl.handle.net/10214/8133
dc.description.abstract This thesis builds a reference library of DNA barcodes that provides coverage for 44% of North American species of herpetofauna. It also establishes the utility of the Barcode Index Number system in flagging cases of deeply diverged lineages or hybridization of taxa. The DNA barcode region outperforms 16S rRNA as a tool for species identification and for detecting errors in museum collections. The coupling of information on sequence diversity in the barcode region with that for other mitochondrial genes revealed a correlation between rates of molecular evolution and diversification in North American squamates, but not amphibians. Species formation in squamates appears to be predominantly affected by mutation rate, whereas species diversity in amphibians is likely shaped by life history variables and dispersal ability. Overall, this thesis demonstrates that DNA barcodes are an effective tool for rapid species identification and a good approach for examining mechanisms underlying current biodiversity. en_US
dc.language.iso en en_US
dc.rights Attribution-NoDerivs 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by-nd/2.5/ca/ *
dc.subject amphibian en_US
dc.subject diversification en_US
dc.subject DNA barcoding en_US
dc.subject molecular evolution en_US
dc.subject reptile en_US
dc.subject speciation en_US
dc.title Mitochondrial DNA diversity in North American herpetofauna: molecular evolution, diversification, and DNA barcoding en_US
dc.type Thesis en_US
dc.degree.programme Integrative Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Integrative Biology en_US


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Attribution-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NoDerivs 2.5 Canada