Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae)
BACKGROUND AND AIMS: Tertiary relict and Arctic/circumboreal distributions are two major patterns of Northern Hemisphere intercontinental disjunctions with very different histories. Each has been well researched, but members of one biome have generally not been incorporated in the biogeographical an...
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ftpubmed:oai:pubmedcentral.nih.gov:6589512 2023-05-15T14:54:13+02:00 Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) Liu, Zhen-Wen Zhou, Jing Peng, Hua Freudenstein, John V Milne, Richard I 2019-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589512/ http://www.ncbi.nlm.nih.gov/pubmed/30852591 https://doi.org/10.1093/aob/mcz018 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589512/ http://www.ncbi.nlm.nih.gov/pubmed/30852591 http://dx.doi.org/10.1093/aob/mcz018 © The Author(s) 2019. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) Ann Bot Original Articles Text 2019 ftpubmed https://doi.org/10.1093/aob/mcz018 2020-06-28T00:13:11Z BACKGROUND AND AIMS: Tertiary relict and Arctic/circumboreal distributions are two major patterns of Northern Hemisphere intercontinental disjunctions with very different histories. Each has been well researched, but members of one biome have generally not been incorporated in the biogeographical analyses of the other, and links or transitions between these two biomes have rarely been addressed. METHODS: Phylogenies of Chimaphila were generated based on cpDNA and nuclear ITS, using Bayesian and maximum likelihood methods. A time-calibrated phylogeny was generated using BEAST. Ancestral area reconstruction was inferred using both statistical dispersal–vicariance analysis and a dispersal–extinction–cladogenesis model. KEY RESULTS: The Chimaphila crown group was estimated to have originated in the early Miocene. The lineages of C. umbellata diverged early, but its present circumboreal distribution was not achieved until around the middle Pliocene or later. Sister to this is a clade of four species with Tertiary relict distribution. Among these, two expansions occurred from North America to Asia, probably via the Bering Land Bridge, generating its current disjunctions. CONCLUSIONS: Our data concur with a few other studies, indicating that the circumboreal woodland biome has an older origin than most true Arctic–alpine taxa, having gradually recruited taxa since the early Oligocene. For the origin of Asia–North America disjunctions in Chimaphila, an ‘out-of-America’ migration was supported. It is not clear in which direction Pyroloideae lineages moved between Tertiary relict disjunctions and Arctic/circumboreal distributions; each biome might have recruited species from the other. Text Arctic Bering Land Bridge PubMed Central (PMC) Arctic Annals of Botany 123 6 1089 1098 |
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Original Articles |
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Original Articles Liu, Zhen-Wen Zhou, Jing Peng, Hua Freudenstein, John V Milne, Richard I Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
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Original Articles |
description |
BACKGROUND AND AIMS: Tertiary relict and Arctic/circumboreal distributions are two major patterns of Northern Hemisphere intercontinental disjunctions with very different histories. Each has been well researched, but members of one biome have generally not been incorporated in the biogeographical analyses of the other, and links or transitions between these two biomes have rarely been addressed. METHODS: Phylogenies of Chimaphila were generated based on cpDNA and nuclear ITS, using Bayesian and maximum likelihood methods. A time-calibrated phylogeny was generated using BEAST. Ancestral area reconstruction was inferred using both statistical dispersal–vicariance analysis and a dispersal–extinction–cladogenesis model. KEY RESULTS: The Chimaphila crown group was estimated to have originated in the early Miocene. The lineages of C. umbellata diverged early, but its present circumboreal distribution was not achieved until around the middle Pliocene or later. Sister to this is a clade of four species with Tertiary relict distribution. Among these, two expansions occurred from North America to Asia, probably via the Bering Land Bridge, generating its current disjunctions. CONCLUSIONS: Our data concur with a few other studies, indicating that the circumboreal woodland biome has an older origin than most true Arctic–alpine taxa, having gradually recruited taxa since the early Oligocene. For the origin of Asia–North America disjunctions in Chimaphila, an ‘out-of-America’ migration was supported. It is not clear in which direction Pyroloideae lineages moved between Tertiary relict disjunctions and Arctic/circumboreal distributions; each biome might have recruited species from the other. |
format |
Text |
author |
Liu, Zhen-Wen Zhou, Jing Peng, Hua Freudenstein, John V Milne, Richard I |
author_facet |
Liu, Zhen-Wen Zhou, Jing Peng, Hua Freudenstein, John V Milne, Richard I |
author_sort |
Liu, Zhen-Wen |
title |
Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
title_short |
Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
title_full |
Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
title_fullStr |
Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
title_full_unstemmed |
Relationships between Tertiary relict and circumboreal woodland floras: a case study in Chimaphila (Ericaceae) |
title_sort |
relationships between tertiary relict and circumboreal woodland floras: a case study in chimaphila (ericaceae) |
publisher |
Oxford University Press |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589512/ http://www.ncbi.nlm.nih.gov/pubmed/30852591 https://doi.org/10.1093/aob/mcz018 |
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Arctic |
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Arctic |
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Arctic Bering Land Bridge |
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Arctic Bering Land Bridge |
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Ann Bot |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6589512/ http://www.ncbi.nlm.nih.gov/pubmed/30852591 http://dx.doi.org/10.1093/aob/mcz018 |
op_rights |
© The Author(s) 2019. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) |
op_doi |
https://doi.org/10.1093/aob/mcz018 |
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Annals of Botany |
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123 |
container_issue |
6 |
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1089 |
op_container_end_page |
1098 |
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1766325936771301376 |