Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)

Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)

14 páginas, 4 figuras, 2 tablas.

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Bibliographic Details
Main Authors: Segarra-Moragues, José G., Palop-Esteban, M., González-Candelas, Fernando, Catalán, Pilar
Other Authors: Gobierno de Aragón
Format: artículo biblioteca
Language:English
Published: Blackwell Publishing 2007-11
Subjects:Dioscoreaceae, Microsatellites, Palaeopolyploids, Plant phylogeography, Postglacial colonization, Population structure, Pyrenees, Refugia,
Online Access:http://hdl.handle.net/10261/59917
http://dx.doi.org/10.13039/501100010067
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spelling dig-cide-es-10261-599172012-11-11T23:00:00Z Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae) Segarra-Moragues, José G. Palop-Esteban, M. González-Candelas, Fernando Catalán, Pilar Gobierno de Aragón Ministerio de Educación y Ciencia (España) Dioscoreaceae Microsatellites Palaeopolyploids Plant phylogeography Postglacial colonization Population structure Pyrenees Refugia 14 páginas, 4 figuras, 2 tablas. Aim. Borderea pyrenaica (Dioscoreaceae) is a Tertiary relict plant endemic to the Central Pyrenees. Because of its narrow distribution in a small geographical area and the fact that it is restricted to high alpine habitats, it constitutes an ideal model species for inferring the historical dynamics of population survival and migration during and after Quaternary glaciations in the Pyrenees. Location. Central Pyrenees and pre-Pyrenees, Spain–France. Methods. Eleven primer pairs were used to amplify 18 microsatellite loci in this allotetraploid species in a sample of 804 individuals from 15 populations, revealing a total of 77 alleles. Genotypic data of individuals and populations were analysed using clustering and Bayesian methods of analysis of population structure. Results. A higher number of private alleles and a significantly higher allelic richness (A*) were found in the southern area (21, A* ¼ 2.295) than in the northern area (5, A* ¼ 1.791). Furthermore, the allelic composition of the northern area represented a subset of that from the southern area. Main conclusions. The hypothesis of in situ survival in northern Pyrenean nunataks was rejected, while peripheral refugia were considered to be restricted to the southern Pyrenees and pre-Pyrenees, where historical geographical fragmentation probably caused the divergence among southern Pyrenean populations. Molecular evidence indicates that these refugial populations probably colonized the northern area after sheet-ice retreat. Borderea pyrenaica lineages followed two migratory pathways in their northward colonization, suggesting several founder events for the populations that eventually reached the territory of the Gavarnie cirque. We thank Ivan Scotti and Joachim Kadereit for their critical review of the manuscript; Clive Stace and Samuel Pyke for corrections to the English; Alain Valadon, Delphine Fallour-Rubio, José Vicente Andrés, Raúl Andrés, Gustavo Gutiérrez, Pedro Torrecilla and the forest guards at the Parc National des Pyrénées (PNP) for sampling facilities; Ma Victoria Flores-Stols for her help in constructing Figs 1 and 4; and two anonymous referees for their thorough revision of an earlier version of the manuscript. This work was supported by a Spanish Aragón Government (DGA) project grant (P105/99-AV) to P.C., a PNP project grant (2001–64S) to P.C. and J.G.S.M., and by a DGA PhD fellowship to J.G.S.M. M.P. and F.G.C. were supported by a MEC/CICYT grant (P98-1436). Peer reviewed 2012-11-12T08:54:01Z 2012-11-12T08:54:01Z 2007-11 artículo http://purl.org/coar/resource_type/c_6501 Journal of Biogeography 34(11): 1893-1906 (2007) 0305-0270 http://hdl.handle.net/10261/59917 10.1111/j.1365-2699.2007.01740.x 1365-2699 http://dx.doi.org/10.13039/501100010067 en http://dx.doi.org/10.1111/j.1365-2699.2007.01740.x none Blackwell Publishing
institution CIDE ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-cide-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del CIDE España
language English
topic Dioscoreaceae
Microsatellites
Palaeopolyploids
Plant phylogeography
Postglacial colonization
Population structure
Pyrenees
Refugia
Dioscoreaceae
Microsatellites
Palaeopolyploids
Plant phylogeography
Postglacial colonization
Population structure
Pyrenees
Refugia
spellingShingle Dioscoreaceae
Microsatellites
Palaeopolyploids
Plant phylogeography
Postglacial colonization
Population structure
Pyrenees
Refugia
Dioscoreaceae
Microsatellites
Palaeopolyploids
Plant phylogeography
Postglacial colonization
Population structure
Pyrenees
Refugia
Segarra-Moragues, José G.
Palop-Esteban, M.
González-Candelas, Fernando
Catalán, Pilar
Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
description 14 páginas, 4 figuras, 2 tablas.
author2 Gobierno de Aragón
author_facet Gobierno de Aragón
Segarra-Moragues, José G.
Palop-Esteban, M.
González-Candelas, Fernando
Catalán, Pilar
format artículo
topic_facet Dioscoreaceae
Microsatellites
Palaeopolyploids
Plant phylogeography
Postglacial colonization
Population structure
Pyrenees
Refugia
author Segarra-Moragues, José G.
Palop-Esteban, M.
González-Candelas, Fernando
Catalán, Pilar
author_sort Segarra-Moragues, José G.
title Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
title_short Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
title_full Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
title_fullStr Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
title_full_unstemmed Nunatak survival vs. tabula rasa in the Central Pyrenees: a study on the endemic plant species Borderea pyrenaica (Dioscoreaceae)
title_sort nunatak survival vs. tabula rasa in the central pyrenees: a study on the endemic plant species borderea pyrenaica (dioscoreaceae)
publisher Blackwell Publishing
publishDate 2007-11
url http://hdl.handle.net/10261/59917
http://dx.doi.org/10.13039/501100010067
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