Genetic variability in geographic populations of the natterjack toad (Bufo calamita)

Across altitudinal and latitudinal gradients, the proportion of suitable habitats varies, influencing the individual dispersal that ultimately can produce differentiation among populations. The natterjack toad (Bufo calamita) is distributed across a wide geographic range that qualifies the species a...

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Autores: Oromí Farrús, Neus, Richter-Boix, A, Sanuy i Castells, Delfí, Fibla Palazón, Joan
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Recursos:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/49079
Acesso em linha:https://doi.org/10.1002/ece3.323
http://hdl.handle.net/10459.1/49079
Access Level:acceso abierto
Palavra-chave:Altitudinal and latitudinal gradient
Bufo calamita
Genetic diversity
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spelling Genetic variability in geographic populations of the natterjack toad (Bufo calamita)Oromí Farrús, NeusRichter-Boix, ASanuy i Castells, DelfíFibla Palazón, JoanAltitudinal and latitudinal gradientBufo calamitaGenetic diversityAcross altitudinal and latitudinal gradients, the proportion of suitable habitats varies, influencing the individual dispersal that ultimately can produce differentiation among populations. The natterjack toad (Bufo calamita) is distributed across a wide geographic range that qualifies the species as interesting for a geographic analysis of its genetic variability. Five populations of B. calamita in the Sierra de Gredos (Spain) were studied in an altitudinal gradient ranging from 750 to 2270 m using microsatellite markers. In addition, we analyzed the latitudinal genetic variation in B. calamita within a global European distribution using genetic diversity parameters (mean number of alleles per locus [Ma] and expected heterozygosity [HE]) obtained from our results and those published in the literature. The low level of genetic differentiation found between populations of B. calamita (Fst ranging from 0.0115 to 0.1018) and the decreases in genetic diversity with altitude (Ma from 13.6 to 8.3, HE from 0.82 to 0.74) can be interpreted by the combined effects of discontinuous habitat, produced mainly by the high slopes barriers and geographic distance. In the latitudinal gradient, genetic diversity decreases from south to north as a consequence of the colonization of the species from the Pleistocene refugium. We conclude that the genetic variability in B. calamita along its wide altitudinal and latitudinal geographic distribution mainly reflects the colonization history of the species after the last glacial period.The project was financed by Spain's Ministry of Science and Innovation (CGL2009-12767-C02-01) and the regional administration (Diputació) of the province of Lleida.Wiley Open Access2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.1002/ece3.323http://hdl.handle.net/10459.1/49079reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MICINN//CGL2009-12767-C02-01Reproducció del document publicat a https://doi.org/10.1002/ece3.323Ecology and Evolution, 2012, vol.2, núm. 8, p. 2018-2026cc-by-nc (c) Oromí Farrús, Neus et al., 2012info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/es/oai:repositori.udl.cat:10459.1/490792026-06-24T12:42:17Z
dc.title.none.fl_str_mv Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
title Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
spellingShingle Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
Oromí Farrús, Neus
Altitudinal and latitudinal gradient
Bufo calamita
Genetic diversity
title_short Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
title_full Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
title_fullStr Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
title_full_unstemmed Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
title_sort Genetic variability in geographic populations of the natterjack toad (Bufo calamita)
dc.creator.none.fl_str_mv Oromí Farrús, Neus
Richter-Boix, A
Sanuy i Castells, Delfí
Fibla Palazón, Joan
author Oromí Farrús, Neus
author_facet Oromí Farrús, Neus
Richter-Boix, A
Sanuy i Castells, Delfí
Fibla Palazón, Joan
author_role author
author2 Richter-Boix, A
Sanuy i Castells, Delfí
Fibla Palazón, Joan
author2_role author
author
author
dc.subject.none.fl_str_mv Altitudinal and latitudinal gradient
Bufo calamita
Genetic diversity
topic Altitudinal and latitudinal gradient
Bufo calamita
Genetic diversity
description Across altitudinal and latitudinal gradients, the proportion of suitable habitats varies, influencing the individual dispersal that ultimately can produce differentiation among populations. The natterjack toad (Bufo calamita) is distributed across a wide geographic range that qualifies the species as interesting for a geographic analysis of its genetic variability. Five populations of B. calamita in the Sierra de Gredos (Spain) were studied in an altitudinal gradient ranging from 750 to 2270 m using microsatellite markers. In addition, we analyzed the latitudinal genetic variation in B. calamita within a global European distribution using genetic diversity parameters (mean number of alleles per locus [Ma] and expected heterozygosity [HE]) obtained from our results and those published in the literature. The low level of genetic differentiation found between populations of B. calamita (Fst ranging from 0.0115 to 0.1018) and the decreases in genetic diversity with altitude (Ma from 13.6 to 8.3, HE from 0.82 to 0.74) can be interpreted by the combined effects of discontinuous habitat, produced mainly by the high slopes barriers and geographic distance. In the latitudinal gradient, genetic diversity decreases from south to north as a consequence of the colonization of the species from the Pleistocene refugium. We conclude that the genetic variability in B. calamita along its wide altitudinal and latitudinal geographic distribution mainly reflects the colonization history of the species after the last glacial period.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1002/ece3.323
http://hdl.handle.net/10459.1/49079
url https://doi.org/10.1002/ece3.323
http://hdl.handle.net/10459.1/49079
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN//CGL2009-12767-C02-01
Reproducció del document publicat a https://doi.org/10.1002/ece3.323
Ecology and Evolution, 2012, vol.2, núm. 8, p. 2018-2026
dc.rights.none.fl_str_mv cc-by-nc (c) Oromí Farrús, Neus et al., 2012
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/3.0/es/
rights_invalid_str_mv cc-by-nc (c) Oromí Farrús, Neus et al., 2012
http://creativecommons.org/licenses/by-nc/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley Open Access
publisher.none.fl_str_mv Wiley Open Access
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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