Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History
Dissertation (Ph.D.) University of Alaska Fairbanks, 2002 Through analysis of mitochondrial DNA (mtDNA) sequences, I examined phylogeographic relationships among moose (Alces alces) from Europe, Asia, and North America and inferred historic population trends explaining present-day structure of genet...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/8614 2023-05-15T13:13:02+02:00 Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History Hundertmark, Kris Joseph Bowyer, R. Terry Shields, Gerald F. 2002 http://hdl.handle.net/11122/8614 unknown http://hdl.handle.net/11122/8614 Genetics Zoology Forestry Dissertation phd 2002 ftunivalaska 2023-02-23T21:37:05Z Dissertation (Ph.D.) University of Alaska Fairbanks, 2002 Through analysis of mitochondrial DNA (mtDNA) sequences, I examined phylogeographic relationships among moose (Alces alces) from Europe, Asia, and North America and inferred historic population trends explaining present-day structure of genetic variance. Diversity of nucleotide composition in cytochrome b was low worldwide, with no variation detected among North American moose. The North American lineage was more closely related to European than to Asian lineages, indicating a recent colonization of North America and refuting the theory of eastern and western races of moose. An analysis of the control region provided greater resolution, which revealed similar yet more detailed patterns, including detectable variation within North America subspecies. Patterns of genetic variation among regional populations identified central Asia as the source of extant lineages of moose. Moreover, a recent coalescence was indicated, with the most recent common ancestor dating to the last ice age. Two historic expansions of moose populations were detected: an initial expansion in Eurasia coincident with an interstade of the last ice age, and a second expansion in eastern Asia; and North America following the end of the last ice age. Data indicate a low effective population size in Eurasia during the peak of the last ice age followed by population and range expansion, likely facilitated by climate change. Haplotypes within North America formed a star phylogeny, indicative of recent expansion. Nucleotide and haplotype diversity were greatest in central North America and least in peripheral populations (Alaska, Colorado, and eastern North America). My data indicate a pattern of colonization consistent with a large central population providing founders for peripheral populations, perhaps resulting from leptokurtic dispersal. Low diversity in Alaska indicated a bottleneck subsequent to colonization and recent population expansion. Establishment of regional populations through ... Doctoral or Postdoctoral Thesis Alces alces Alaska University of Alaska: ScholarWorks@UA Fairbanks |
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University of Alaska: ScholarWorks@UA |
op_collection_id |
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language |
unknown |
topic |
Genetics Zoology Forestry |
spellingShingle |
Genetics Zoology Forestry Hundertmark, Kris Joseph Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
topic_facet |
Genetics Zoology Forestry |
description |
Dissertation (Ph.D.) University of Alaska Fairbanks, 2002 Through analysis of mitochondrial DNA (mtDNA) sequences, I examined phylogeographic relationships among moose (Alces alces) from Europe, Asia, and North America and inferred historic population trends explaining present-day structure of genetic variance. Diversity of nucleotide composition in cytochrome b was low worldwide, with no variation detected among North American moose. The North American lineage was more closely related to European than to Asian lineages, indicating a recent colonization of North America and refuting the theory of eastern and western races of moose. An analysis of the control region provided greater resolution, which revealed similar yet more detailed patterns, including detectable variation within North America subspecies. Patterns of genetic variation among regional populations identified central Asia as the source of extant lineages of moose. Moreover, a recent coalescence was indicated, with the most recent common ancestor dating to the last ice age. Two historic expansions of moose populations were detected: an initial expansion in Eurasia coincident with an interstade of the last ice age, and a second expansion in eastern Asia; and North America following the end of the last ice age. Data indicate a low effective population size in Eurasia during the peak of the last ice age followed by population and range expansion, likely facilitated by climate change. Haplotypes within North America formed a star phylogeny, indicative of recent expansion. Nucleotide and haplotype diversity were greatest in central North America and least in peripheral populations (Alaska, Colorado, and eastern North America). My data indicate a pattern of colonization consistent with a large central population providing founders for peripheral populations, perhaps resulting from leptokurtic dispersal. Low diversity in Alaska indicated a bottleneck subsequent to colonization and recent population expansion. Establishment of regional populations through ... |
author2 |
Bowyer, R. Terry Shields, Gerald F. |
format |
Doctoral or Postdoctoral Thesis |
author |
Hundertmark, Kris Joseph |
author_facet |
Hundertmark, Kris Joseph |
author_sort |
Hundertmark, Kris Joseph |
title |
Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
title_short |
Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
title_full |
Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
title_fullStr |
Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
title_full_unstemmed |
Phylogeography Of Moose (Alces Alces): Genetic Signatures Of Population History |
title_sort |
phylogeography of moose (alces alces): genetic signatures of population history |
publishDate |
2002 |
url |
http://hdl.handle.net/11122/8614 |
geographic |
Fairbanks |
geographic_facet |
Fairbanks |
genre |
Alces alces Alaska |
genre_facet |
Alces alces Alaska |
op_relation |
http://hdl.handle.net/11122/8614 |
_version_ |
1766255681732608000 |