Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae)
Flora endemic to the cold habitats of the Northern Hemisphere provide important models for investigating diversification and disjunctions, given both the intense climatic fluctuations of these areas in the recent past and the fascinating biogeographic patterns of today's Arctic-alpine plant com...
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The American Society of Plant Taxonomists
2020
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ftbioone:10.1600/036364420X16033963649282 2023-07-30T04:01:09+02:00 Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese world 2020-12-08 text/HTML https://doi.org/10.1600/036364420X16033963649282 en eng The American Society of Plant Taxonomists doi:10.1600/036364420X16033963649282 All rights reserved. https://doi.org/10.1600/036364420X16033963649282 Text 2020 ftbioone https://doi.org/10.1600/036364420X16033963649282 2023-07-09T09:40:33Z Flora endemic to the cold habitats of the Northern Hemisphere provide important models for investigating diversification and disjunctions, given both the intense climatic fluctuations of these areas in the recent past and the fascinating biogeographic patterns of today's Arctic-alpine plant communities. Micranthes Haw. (Saxifragaceae), a clade of small-flowered herbaceous flowering plants comprising ∼80 species, is an ideal group for investigating the evolution and diversification of plants in montane and Arctic ecosystems. Micranthes has proven to be a particularly challenging clade to unravel taxonomically due in part to rampant auto- and allopolyploidy, hybridization, and cryptic speciation. With the goal of providing an updated conspectus for this group, we build upon a recent large phylogenomic analysis to help elucidate the evolution of Micranthes. Here, we present new downstream analyses including diversification analyses, biogeographical reconstructions, and a comparison of methods for dating phylogenomic data sets. To complement these new analyses, we also synthesize chromosomal variation, new observations regarding morphology and species identification, comprehensive field studies, and an extensive review of the literature for Saxifragaceae and Micranthes. A new perspective on the systematics and taxonomy of Micranthes is provided. Text Arctic BioOne Online Journals Arctic Systematic Botany 45 4 802 811 |
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English |
description |
Flora endemic to the cold habitats of the Northern Hemisphere provide important models for investigating diversification and disjunctions, given both the intense climatic fluctuations of these areas in the recent past and the fascinating biogeographic patterns of today's Arctic-alpine plant communities. Micranthes Haw. (Saxifragaceae), a clade of small-flowered herbaceous flowering plants comprising ∼80 species, is an ideal group for investigating the evolution and diversification of plants in montane and Arctic ecosystems. Micranthes has proven to be a particularly challenging clade to unravel taxonomically due in part to rampant auto- and allopolyploidy, hybridization, and cryptic speciation. With the goal of providing an updated conspectus for this group, we build upon a recent large phylogenomic analysis to help elucidate the evolution of Micranthes. Here, we present new downstream analyses including diversification analyses, biogeographical reconstructions, and a comparison of methods for dating phylogenomic data sets. To complement these new analyses, we also synthesize chromosomal variation, new observations regarding morphology and species identification, comprehensive field studies, and an extensive review of the literature for Saxifragaceae and Micranthes. A new perspective on the systematics and taxonomy of Micranthes is provided. |
author2 |
Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese |
format |
Text |
author |
Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese |
spellingShingle |
Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
author_facet |
Rebecca L. Stubbs Ryan A. Folk Douglas E. Soltis Nico Cellinese |
author_sort |
Rebecca L. Stubbs |
title |
Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
title_short |
Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
title_full |
Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
title_fullStr |
Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
title_full_unstemmed |
Diversification in the Arctic: Biogeography and Systematics of the North American Micranthes (Saxifragaceae) |
title_sort |
diversification in the arctic: biogeography and systematics of the north american micranthes (saxifragaceae) |
publisher |
The American Society of Plant Taxonomists |
publishDate |
2020 |
url |
https://doi.org/10.1600/036364420X16033963649282 |
op_coverage |
world |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
https://doi.org/10.1600/036364420X16033963649282 |
op_relation |
doi:10.1600/036364420X16033963649282 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1600/036364420X16033963649282 |
container_title |
Systematic Botany |
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45 |
container_issue |
4 |
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802 |
op_container_end_page |
811 |
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1772811911997423616 |