Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia
International audience Hypericum nummularium has a strongly disjunct, bi-areal distribution in Europe: it is abundant in the Pyrenees and grows in a very restricted part of the Alps, more than 1000 km away. My aim was to estimate the genetic divergence between these areas and to identify the factors...
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ftunigrenoble:oai:HAL:halsde-00293859v1 2024-05-12T08:10:38+00:00 Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia Gaudeul, M. Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) 2006 https://hal.science/halsde-00293859 https://doi.org/10.1111/j.1095-8312.2006.00583.x en eng HAL CCSD Linnean Society of London info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8312.2006.00583.x halsde-00293859 https://hal.science/halsde-00293859 doi:10.1111/j.1095-8312.2006.00583.x ISSN: 0024-4066 EISSN: 1095-8312 Biological Journal of the Linnean Society https://hal.science/halsde-00293859 Biological Journal of the Linnean Society, 2006, 87 (3), pp.437-447. ⟨10.1111/j.1095-8312.2006.00583.x⟩ amplified fragment length polymorphism (AFLP) biogeography disjunction dispersal genetic structure glaciation internal transcribed spacers (ITS) phylogeography Length polymorphism markers nuclear ribosomal dna ice ages european alps alpine plant saxifraga-oppositifolia sequence variation genetic diversity late quaternary [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/article Journal articles 2006 ftunigrenoble https://doi.org/10.1111/j.1095-8312.2006.00583.x 2024-04-18T03:27:18Z International audience Hypericum nummularium has a strongly disjunct, bi-areal distribution in Europe: it is abundant in the Pyrenees and grows in a very restricted part of the Alps, more than 1000 km away. My aim was to estimate the genetic divergence between these areas and to identify the factors responsible for the disjunction: glacial relicts, bidirectional colonization from a common refugium, long-distance dispersal and/or human introduction? Internal transcribed spacers (ITS) sequencing (680 bp) and amplified fragment length polymorphism (AFLP) fingerprinting (104 polymorphic markers) showed very low differentiation between populations in the Alps and the Pyrenees, indicating that H. nummularium probably survived in a single refugium. Moreover, levels of genetic diversity were similar in the two areas, making human introduction and long-distance dispersal unlikely. Thus, the species probably survived in one refugium, subsequently colonizing both areas more or less simultaneously. The comparison of genetic and geographical distances suggested a step by step migration in the Alps (isolation by distance), whereas random dispersal events were more likely in the Pyrenees. Finally, I discuss possible causes for the restricted distribution area of H. nummularium in the Alps (e.g. unsuitable habitat, low dispersal capacities) and conclude that strong human disturbance is probably the major limit to the expansion of the species in this region. (c) 2006 The Linnean Society of London. Article in Journal/Newspaper Saxifraga oppositifolia Université Grenoble Alpes: HAL Biological Journal of the Linnean Society 87 3 437 447 |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
amplified fragment length polymorphism (AFLP) biogeography disjunction dispersal genetic structure glaciation internal transcribed spacers (ITS) phylogeography Length polymorphism markers nuclear ribosomal dna ice ages european alps alpine plant saxifraga-oppositifolia sequence variation genetic diversity late quaternary [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
amplified fragment length polymorphism (AFLP) biogeography disjunction dispersal genetic structure glaciation internal transcribed spacers (ITS) phylogeography Length polymorphism markers nuclear ribosomal dna ice ages european alps alpine plant saxifraga-oppositifolia sequence variation genetic diversity late quaternary [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment Gaudeul, M. Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
topic_facet |
amplified fragment length polymorphism (AFLP) biogeography disjunction dispersal genetic structure glaciation internal transcribed spacers (ITS) phylogeography Length polymorphism markers nuclear ribosomal dna ice ages european alps alpine plant saxifraga-oppositifolia sequence variation genetic diversity late quaternary [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
International audience Hypericum nummularium has a strongly disjunct, bi-areal distribution in Europe: it is abundant in the Pyrenees and grows in a very restricted part of the Alps, more than 1000 km away. My aim was to estimate the genetic divergence between these areas and to identify the factors responsible for the disjunction: glacial relicts, bidirectional colonization from a common refugium, long-distance dispersal and/or human introduction? Internal transcribed spacers (ITS) sequencing (680 bp) and amplified fragment length polymorphism (AFLP) fingerprinting (104 polymorphic markers) showed very low differentiation between populations in the Alps and the Pyrenees, indicating that H. nummularium probably survived in a single refugium. Moreover, levels of genetic diversity were similar in the two areas, making human introduction and long-distance dispersal unlikely. Thus, the species probably survived in one refugium, subsequently colonizing both areas more or less simultaneously. The comparison of genetic and geographical distances suggested a step by step migration in the Alps (isolation by distance), whereas random dispersal events were more likely in the Pyrenees. Finally, I discuss possible causes for the restricted distribution area of H. nummularium in the Alps (e.g. unsuitable habitat, low dispersal capacities) and conclude that strong human disturbance is probably the major limit to the expansion of the species in this region. (c) 2006 The Linnean Society of London. |
author2 |
Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gaudeul, M. |
author_facet |
Gaudeul, M. |
author_sort |
Gaudeul, M. |
title |
Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
title_short |
Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
title_full |
Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
title_fullStr |
Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
title_full_unstemmed |
Disjunct distribution of Hypericum nummularium L. (Hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
title_sort |
disjunct distribution of hypericum nummularium l. (hypericaceae): molecular data suggest bidirectional colonization from a single refugium rather than survival in distinct refugia |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/halsde-00293859 https://doi.org/10.1111/j.1095-8312.2006.00583.x |
genre |
Saxifraga oppositifolia |
genre_facet |
Saxifraga oppositifolia |
op_source |
ISSN: 0024-4066 EISSN: 1095-8312 Biological Journal of the Linnean Society https://hal.science/halsde-00293859 Biological Journal of the Linnean Society, 2006, 87 (3), pp.437-447. ⟨10.1111/j.1095-8312.2006.00583.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8312.2006.00583.x halsde-00293859 https://hal.science/halsde-00293859 doi:10.1111/j.1095-8312.2006.00583.x |
op_doi |
https://doi.org/10.1111/j.1095-8312.2006.00583.x |
container_title |
Biological Journal of the Linnean Society |
container_volume |
87 |
container_issue |
3 |
container_start_page |
437 |
op_container_end_page |
447 |
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1798854115426566144 |