The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia
Abstract The Kamchatka rhododendron (Therorhodion camtschaticum s.l.) is a small, cold-resistant arcto-alpine shrub species with a controversial taxonomy and a wide Beringian distribution, from northern Eurasia to Arctic North America. Some authors regard T. camtschaticum and the closely related The...
Published in: | Botanical Journal of the Linnean Society |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/botlinnean/boae041 https://academic.oup.com/botlinnean/advance-article-pdf/doi/10.1093/botlinnean/boae041/58760355/boae041.pdf |
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croxfordunivpr:10.1093/botlinnean/boae041 2024-09-15T18:02:04+00:00 The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia Polezhaeva, Maria A Modorov, Makar V Mochalova, Olga A Ickert-Bond, Stefanie M Institute of Plant and Animal Ecology, Ural Branch U.S. Department of the Interior Russian Academy of Sciences 2024 http://dx.doi.org/10.1093/botlinnean/boae041 https://academic.oup.com/botlinnean/advance-article-pdf/doi/10.1093/botlinnean/boae041/58760355/boae041.pdf en eng Oxford University Press (OUP) https://academic.oup.com/pages/standard-publication-reuse-rights Botanical Journal of the Linnean Society ISSN 0024-4074 1095-8339 journal-article 2024 croxfordunivpr https://doi.org/10.1093/botlinnean/boae041 2024-09-03T04:13:12Z Abstract The Kamchatka rhododendron (Therorhodion camtschaticum s.l.) is a small, cold-resistant arcto-alpine shrub species with a controversial taxonomy and a wide Beringian distribution, from northern Eurasia to Arctic North America. Some authors regard T. camtschaticum and the closely related Therorhodion glandulosum as separate species while others suggest that they represent regionally differentiated subspecies. In order to resolve this relationship, we sampled 33 populations within the native species ranges, using three fragments of plastid DNA (ptDNA) and ten nuclear microsatellites (nSSR). We recovered two genetic lineages consistent with species rather than subspecies. The distribution of these genetic lineages are consistent with two different migration pathways of species from western Beringia to eastern Beringia: (i) for T. glandulosum a northern pathway from northern East Asia to the Seward Peninsula in northern Alaska; and (ii) for T. camtschaticum a southern pathway from the southern part of western Beringia to the Aleutian Islands and the seashore of south-east Alaska. The northern route extends from the Okhotsk seashore through the Kolyma region, Chukotka, and central and northern Kamchatka. The southern route begins at the Sikhote-Alin ridge, and goes through Sakhalin Island, the Kuril Islands, and southern Kamchatka. Demographic analysis using nSSR data inferred a divergence time between T. camtschaticum and T. glandulosum long before the Last Glacial Maximum. Article in Journal/Newspaper Chukotka Kamchatka Sakhalin Seward Peninsula Alaska Aleutian Islands Beringia Oxford University Press Botanical Journal of the Linnean Society |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The Kamchatka rhododendron (Therorhodion camtschaticum s.l.) is a small, cold-resistant arcto-alpine shrub species with a controversial taxonomy and a wide Beringian distribution, from northern Eurasia to Arctic North America. Some authors regard T. camtschaticum and the closely related Therorhodion glandulosum as separate species while others suggest that they represent regionally differentiated subspecies. In order to resolve this relationship, we sampled 33 populations within the native species ranges, using three fragments of plastid DNA (ptDNA) and ten nuclear microsatellites (nSSR). We recovered two genetic lineages consistent with species rather than subspecies. The distribution of these genetic lineages are consistent with two different migration pathways of species from western Beringia to eastern Beringia: (i) for T. glandulosum a northern pathway from northern East Asia to the Seward Peninsula in northern Alaska; and (ii) for T. camtschaticum a southern pathway from the southern part of western Beringia to the Aleutian Islands and the seashore of south-east Alaska. The northern route extends from the Okhotsk seashore through the Kolyma region, Chukotka, and central and northern Kamchatka. The southern route begins at the Sikhote-Alin ridge, and goes through Sakhalin Island, the Kuril Islands, and southern Kamchatka. Demographic analysis using nSSR data inferred a divergence time between T. camtschaticum and T. glandulosum long before the Last Glacial Maximum. |
author2 |
Institute of Plant and Animal Ecology, Ural Branch U.S. Department of the Interior Russian Academy of Sciences |
format |
Article in Journal/Newspaper |
author |
Polezhaeva, Maria A Modorov, Makar V Mochalova, Olga A Ickert-Bond, Stefanie M |
spellingShingle |
Polezhaeva, Maria A Modorov, Makar V Mochalova, Olga A Ickert-Bond, Stefanie M The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
author_facet |
Polezhaeva, Maria A Modorov, Makar V Mochalova, Olga A Ickert-Bond, Stefanie M |
author_sort |
Polezhaeva, Maria A |
title |
The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
title_short |
The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
title_full |
The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
title_fullStr |
The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
title_full_unstemmed |
The migration history of the Kamchatka rhododendron ( Therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards Eastern Beringia |
title_sort |
migration history of the kamchatka rhododendron ( therorhodion camtschaticum s.l.) indicates two distinct dispersal routes towards eastern beringia |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/botlinnean/boae041 https://academic.oup.com/botlinnean/advance-article-pdf/doi/10.1093/botlinnean/boae041/58760355/boae041.pdf |
genre |
Chukotka Kamchatka Sakhalin Seward Peninsula Alaska Aleutian Islands Beringia |
genre_facet |
Chukotka Kamchatka Sakhalin Seward Peninsula Alaska Aleutian Islands Beringia |
op_source |
Botanical Journal of the Linnean Society ISSN 0024-4074 1095-8339 |
op_rights |
https://academic.oup.com/pages/standard-publication-reuse-rights |
op_doi |
https://doi.org/10.1093/botlinnean/boae041 |
container_title |
Botanical Journal of the Linnean Society |
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1810439166756913152 |