Genetic and Morphological Analyses of White Spruce in North America
79 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. Plant response to climate change can occur through a variety of mechanisms including population migration and phenotypic evolution. The effects of migration are often preserved in genetic patterns of contemporary forests, and ca...
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ftunivillidea:oai:www.ideals.illinois.edu:2142/85367 2023-05-15T15:05:01+02:00 Genetic and Morphological Analyses of White Spruce in North America Anderson, Lynn Lorraine Hu, Feng Sheng Paige, Ken N. 2006 http://hdl.handle.net/2142/85367 unknown http://hdl.handle.net/2142/85367 (MiAaPQ)AAI3250207 Biology Ecology text 2006 ftunivillidea 2016-03-19T23:51:37Z 79 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. Plant response to climate change can occur through a variety of mechanisms including population migration and phenotypic evolution. The effects of migration are often preserved in genetic patterns of contemporary forests, and can include genetic drift during population fragmentation as well as genetic bottlenecks during founder events. Besides migration, populations often change phenotypically in response to shifting climates. In this study I quantify genetic and morphological patterns of central and western North American white spruce populations. Specifically I have (1) provided evidence supporting Hulten's long standing hypothesis that ice-free areas of Beringia served as northern refugia for arctic and boreal biota during the last Quaternary glaciation using cpDNA markers, (2) provided evidence for multiple refugia in Alaska and uncovered the roles of gene flow and drift in structuring the patterns we see today and (3) teased apart the controlling mechanisms behind morphological expression (genetics, environment, or genetic x environmental interactions) in traits by comparing needle morphologies of common garden and naturally grown individuals. Text Arctic Climate change Alaska Beringia University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) Arctic |
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University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) |
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unknown |
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Biology Ecology |
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Biology Ecology Anderson, Lynn Lorraine Genetic and Morphological Analyses of White Spruce in North America |
topic_facet |
Biology Ecology |
description |
79 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. Plant response to climate change can occur through a variety of mechanisms including population migration and phenotypic evolution. The effects of migration are often preserved in genetic patterns of contemporary forests, and can include genetic drift during population fragmentation as well as genetic bottlenecks during founder events. Besides migration, populations often change phenotypically in response to shifting climates. In this study I quantify genetic and morphological patterns of central and western North American white spruce populations. Specifically I have (1) provided evidence supporting Hulten's long standing hypothesis that ice-free areas of Beringia served as northern refugia for arctic and boreal biota during the last Quaternary glaciation using cpDNA markers, (2) provided evidence for multiple refugia in Alaska and uncovered the roles of gene flow and drift in structuring the patterns we see today and (3) teased apart the controlling mechanisms behind morphological expression (genetics, environment, or genetic x environmental interactions) in traits by comparing needle morphologies of common garden and naturally grown individuals. |
author2 |
Hu, Feng Sheng Paige, Ken N. |
format |
Text |
author |
Anderson, Lynn Lorraine |
author_facet |
Anderson, Lynn Lorraine |
author_sort |
Anderson, Lynn Lorraine |
title |
Genetic and Morphological Analyses of White Spruce in North America |
title_short |
Genetic and Morphological Analyses of White Spruce in North America |
title_full |
Genetic and Morphological Analyses of White Spruce in North America |
title_fullStr |
Genetic and Morphological Analyses of White Spruce in North America |
title_full_unstemmed |
Genetic and Morphological Analyses of White Spruce in North America |
title_sort |
genetic and morphological analyses of white spruce in north america |
publishDate |
2006 |
url |
http://hdl.handle.net/2142/85367 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Alaska Beringia |
genre_facet |
Arctic Climate change Alaska Beringia |
op_relation |
http://hdl.handle.net/2142/85367 (MiAaPQ)AAI3250207 |
_version_ |
1766336783792996352 |