Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.
Identifieur interne : 000027 ( PubMed/Corpus ); précédent : 000026; suivant : 000028Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.
Auteurs : Breda M. Zimkus ; Lucinda P. Lawson ; Michael F. Barej ; Christopher D. Barratt ; Alan Channing ; Katrina M. Dash ; J Maximilian Dehling ; Louis Du Preez ; Philip-Sebastian Gehring ; Eli Greenbaum ; Václav Gvoždík ; James Harvey ; Jos Kielgast ; Chifundera Kusamba ; Zoltán T. Nagy ; Maciej Pabijan ; Johannes Penner ; Mark-Oliver Rödel ; Miguel Vences ; Stefan LöttersSource :
- Molecular phylogenetics and evolution [ 1095-9513 ] ; 2017.
Abstract
The Mascarene ridged frog, Ptychadena mascareniensis, is a species complex that includes numerous lineages occurring mostly in humid savannas and open forests of mainland Africa, Madagascar, the Seychelles, and the Mascarene Islands. Sampling across this broad distribution presents an opportunity to examine the genetic differentiation within this complex and to investigate how the evolution of bioclimatic niches may have shaped current biogeographic patterns. Using model-based phylogenetic methods and molecular-clock dating, we constructed a time-calibrated molecular phylogenetic hypothesis for the group based on mitochondrial 16S rRNA and cytochrome b (cytb) genes and the nuclear RAG1 gene from 173 individuals. Haplotype networks were reconstructed and species boundaries were investigated using three species-delimitation approaches: Bayesian generalized mixed Yule-coalescent model (bGMYC), the Poisson Tree Process model (PTP) and a cluster algorithm (SpeciesIdentifier). Estimates of similarity in bioclimatic niche were calculated from species-distribution models (maxent) and multivariate statistics (Principal Component Analysis, Discriminant Function Analysis). Ancestral-area reconstructions were performed on the phylogeny using probabilistic approaches implemented in BioGeoBEARS. We detected high levels of genetic differentiation yielding ten distinct lineages or operational taxonomic units, and Central Africa was found to be a diversity hotspot for these frogs. Most speciation events took place throughout the Miocene, including "out-of-Africa" overseas dispersal events to Madagascar in the East and to São Tomé in the West. Bioclimatic niche was remarkably well conserved, with most species tolerating similar temperature and rainfall conditions common to the Central African region. The P. mascareniensis complex provides insights into how bioclimatic niche shaped the current biogeographic patterns with niche conservatism being exhibited by the Central African radiation and niche divergence shaping populations in West Africa and Madagascar. Central Africa, including the Albertine Rift region, has been an important center of diversification for this species complex.
DOI: 10.1016/j.ympev.2016.09.018
PubMed: 27664344
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.</title><author><name sortKey="Zimkus, Breda M" sort="Zimkus, Breda M" uniqKey="Zimkus B" first="Breda M" last="Zimkus">Breda M. Zimkus</name><affiliation><nlm:affiliation>Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138, USA. Electronic address: bzimkus@oeb.harvard.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Lawson, Lucinda P" sort="Lawson, Lucinda P" uniqKey="Lawson L" first="Lucinda P" last="Lawson">Lucinda P. Lawson</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Cincinnati, 820F Rieveschl Hall, Cincinnati, OH 45221, USA. Electronic address: lucinda.lawson@uc.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Barej, Michael F" sort="Barej, Michael F" uniqKey="Barej M" first="Michael F" last="Barej">Michael F. Barej</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: MichaelF.Barej@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Barratt, Christopher D" sort="Barratt, Christopher D" uniqKey="Barratt C" first="Christopher D" last="Barratt">Christopher D. Barratt</name><affiliation><nlm:affiliation>University of Basel, Biogeography Research Group, Department of Environmental Sciences, Klingelbergstrasse 27, Basel 4056, Switzerland. Electronic address: c.d.barratt@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Channing, Alan" sort="Channing, Alan" uniqKey="Channing A" first="Alan" last="Channing">Alan Channing</name><affiliation><nlm:affiliation>University of the Western Cape, Biodiversity and Conservation Biology, Private Bag X17, Bellville 7535, South Africa. Electronic address: achanning@uwc.ac.za.</nlm:affiliation></affiliation></author><author><name sortKey="Dash, Katrina M" sort="Dash, Katrina M" uniqKey="Dash K" first="Katrina M" last="Dash">Katrina M. Dash</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA; Department of Biology, Tidewater Community College, 120 Campus Dr., Portsmouth, VA 23701, USA. Electronic address: kmweber@miners.utep.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Dehling, J Maximilian" sort="Dehling, J Maximilian" uniqKey="Dehling J" first="J Maximilian" last="Dehling">J Maximilian Dehling</name><affiliation><nlm:affiliation>Institute of Integrated Sciences, Department of Biology, University of Koblenz-Landau, Universitätsstraße 1, 56070 Koblenz, Germany. Electronic address: dehling@uni-koblenz.de.</nlm:affiliation></affiliation></author><author><name sortKey="Du Preez, Louis" sort="Du Preez, Louis" uniqKey="Du Preez L" first="Louis" last="Du Preez">Louis Du Preez</name><affiliation><nlm:affiliation>African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa; South African Institute for Aquatic Biodiversity, Somerset Street, Grahamstown 6139, South Africa. Electronic address: Louis.DuPreez@nwu.ac.za.</nlm:affiliation></affiliation></author><author><name sortKey="Gehring, Philip Sebastian" sort="Gehring, Philip Sebastian" uniqKey="Gehring P" first="Philip-Sebastian" last="Gehring">Philip-Sebastian Gehring</name><affiliation><nlm:affiliation>Fakultät für Biologie Universität Bielefeld, Abt. Biologiedidaktik, Universitätsstraße 25, 33615 Bielefeld, Germany. Electronic address: SebastianGehring@web.de.</nlm:affiliation></affiliation></author><author><name sortKey="Greenbaum, Eli" sort="Greenbaum, Eli" uniqKey="Greenbaum E" first="Eli" last="Greenbaum">Eli Greenbaum</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA. Electronic address: egreenbaum2@utep.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Gvozdik, Vaclav" sort="Gvozdik, Vaclav" uniqKey="Gvozdik V" first="Václav" last="Gvoždík">Václav Gvoždík</name><affiliation><nlm:affiliation>Institute of Vertebrate Biology, Czech Academy of Sciences, 603 65 Brno, Czech Republic; National Museum, Department of Zoology, 19300 Prague, Czech Republic. Electronic address: vaclav.gvozdik@ivb.cz.</nlm:affiliation></affiliation></author><author><name sortKey="Harvey, James" sort="Harvey, James" uniqKey="Harvey J" first="James" last="Harvey">James Harvey</name><affiliation><nlm:affiliation>Harvey Ecological, 35 Carbis Road, Pietermaritzburg 3201, KwaZulu-Natal, South Africa. Electronic address: info@harveyecological.co.za.</nlm:affiliation></affiliation></author><author><name sortKey="Kielgast, Jos" sort="Kielgast, Jos" uniqKey="Kielgast J" first="Jos" last="Kielgast">Jos Kielgast</name><affiliation><nlm:affiliation>Department of Biology, University of Copenhagen, Copenhagen, Denmark. Electronic address: joskielgast@hotmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Kusamba, Chifundera" sort="Kusamba, Chifundera" uniqKey="Kusamba C" first="Chifundera" last="Kusamba">Chifundera Kusamba</name><affiliation><nlm:affiliation>Centre de Recherche en Sciences Naturelles, Département de Biologie, Lwiro, The Democratic Republic of the Congo. Electronic address: chifkusamba@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Nagy, Zoltan T" sort="Nagy, Zoltan T" uniqKey="Nagy Z" first="Zoltán T" last="Nagy">Zoltán T. Nagy</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Joint Experimental Molecular Unit, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium. Electronic address: ztnagy@naturalsciences.be.</nlm:affiliation></affiliation></author><author><name sortKey="Pabijan, Maciej" sort="Pabijan, Maciej" uniqKey="Pabijan M" first="Maciej" last="Pabijan">Maciej Pabijan</name><affiliation><nlm:affiliation>Department of Comparative Anatomy, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland. Electronic address: maciej.pabijan@uj.edu.pl.</nlm:affiliation></affiliation></author><author><name sortKey="Penner, Johannes" sort="Penner, Johannes" uniqKey="Penner J" first="Johannes" last="Penner">Johannes Penner</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Wildlife Ecology & Management, University of Freiburg, Tennenbacher Str. 4, 79106 Freiburg, Germany. Electronic address: johannes.penner@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Rodel, Mark Oliver" sort="Rodel, Mark Oliver" uniqKey="Rodel M" first="Mark-Oliver" last="Rödel">Mark-Oliver Rödel</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: mo.roedel@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Vences, Miguel" sort="Vences, Miguel" uniqKey="Vences M" first="Miguel" last="Vences">Miguel Vences</name><affiliation><nlm:affiliation>Division of Evolutionary Biology, Zoological Institute, Technical University of Braunschweig, Mendelssohnstraße. 4, 38106 Braunschweig, Germany. Electronic address: m.vences@tu-braunschweig.de.</nlm:affiliation></affiliation></author><author><name sortKey="Lotters, Stefan" sort="Lotters, Stefan" uniqKey="Lotters S" first="Stefan" last="Lötters">Stefan Lötters</name><affiliation><nlm:affiliation>Trier University, Department of Biogeography, 54286 Trier, Germany. Electronic address: loetters@uni-trier.de.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:27664344</idno><idno type="pmid">27664344</idno><idno type="doi">10.1016/j.ympev.2016.09.018</idno><idno type="wicri:Area/PubMed/Corpus">000027</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000027</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.</title><author><name sortKey="Zimkus, Breda M" sort="Zimkus, Breda M" uniqKey="Zimkus B" first="Breda M" last="Zimkus">Breda M. Zimkus</name><affiliation><nlm:affiliation>Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138, USA. Electronic address: bzimkus@oeb.harvard.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Lawson, Lucinda P" sort="Lawson, Lucinda P" uniqKey="Lawson L" first="Lucinda P" last="Lawson">Lucinda P. Lawson</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Cincinnati, 820F Rieveschl Hall, Cincinnati, OH 45221, USA. Electronic address: lucinda.lawson@uc.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Barej, Michael F" sort="Barej, Michael F" uniqKey="Barej M" first="Michael F" last="Barej">Michael F. Barej</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: MichaelF.Barej@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Barratt, Christopher D" sort="Barratt, Christopher D" uniqKey="Barratt C" first="Christopher D" last="Barratt">Christopher D. Barratt</name><affiliation><nlm:affiliation>University of Basel, Biogeography Research Group, Department of Environmental Sciences, Klingelbergstrasse 27, Basel 4056, Switzerland. Electronic address: c.d.barratt@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Channing, Alan" sort="Channing, Alan" uniqKey="Channing A" first="Alan" last="Channing">Alan Channing</name><affiliation><nlm:affiliation>University of the Western Cape, Biodiversity and Conservation Biology, Private Bag X17, Bellville 7535, South Africa. Electronic address: achanning@uwc.ac.za.</nlm:affiliation></affiliation></author><author><name sortKey="Dash, Katrina M" sort="Dash, Katrina M" uniqKey="Dash K" first="Katrina M" last="Dash">Katrina M. Dash</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA; Department of Biology, Tidewater Community College, 120 Campus Dr., Portsmouth, VA 23701, USA. Electronic address: kmweber@miners.utep.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Dehling, J Maximilian" sort="Dehling, J Maximilian" uniqKey="Dehling J" first="J Maximilian" last="Dehling">J Maximilian Dehling</name><affiliation><nlm:affiliation>Institute of Integrated Sciences, Department of Biology, University of Koblenz-Landau, Universitätsstraße 1, 56070 Koblenz, Germany. Electronic address: dehling@uni-koblenz.de.</nlm:affiliation></affiliation></author><author><name sortKey="Du Preez, Louis" sort="Du Preez, Louis" uniqKey="Du Preez L" first="Louis" last="Du Preez">Louis Du Preez</name><affiliation><nlm:affiliation>African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa; South African Institute for Aquatic Biodiversity, Somerset Street, Grahamstown 6139, South Africa. Electronic address: Louis.DuPreez@nwu.ac.za.</nlm:affiliation></affiliation></author><author><name sortKey="Gehring, Philip Sebastian" sort="Gehring, Philip Sebastian" uniqKey="Gehring P" first="Philip-Sebastian" last="Gehring">Philip-Sebastian Gehring</name><affiliation><nlm:affiliation>Fakultät für Biologie Universität Bielefeld, Abt. Biologiedidaktik, Universitätsstraße 25, 33615 Bielefeld, Germany. Electronic address: SebastianGehring@web.de.</nlm:affiliation></affiliation></author><author><name sortKey="Greenbaum, Eli" sort="Greenbaum, Eli" uniqKey="Greenbaum E" first="Eli" last="Greenbaum">Eli Greenbaum</name><affiliation><nlm:affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA. Electronic address: egreenbaum2@utep.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Gvozdik, Vaclav" sort="Gvozdik, Vaclav" uniqKey="Gvozdik V" first="Václav" last="Gvoždík">Václav Gvoždík</name><affiliation><nlm:affiliation>Institute of Vertebrate Biology, Czech Academy of Sciences, 603 65 Brno, Czech Republic; National Museum, Department of Zoology, 19300 Prague, Czech Republic. Electronic address: vaclav.gvozdik@ivb.cz.</nlm:affiliation></affiliation></author><author><name sortKey="Harvey, James" sort="Harvey, James" uniqKey="Harvey J" first="James" last="Harvey">James Harvey</name><affiliation><nlm:affiliation>Harvey Ecological, 35 Carbis Road, Pietermaritzburg 3201, KwaZulu-Natal, South Africa. Electronic address: info@harveyecological.co.za.</nlm:affiliation></affiliation></author><author><name sortKey="Kielgast, Jos" sort="Kielgast, Jos" uniqKey="Kielgast J" first="Jos" last="Kielgast">Jos Kielgast</name><affiliation><nlm:affiliation>Department of Biology, University of Copenhagen, Copenhagen, Denmark. Electronic address: joskielgast@hotmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Kusamba, Chifundera" sort="Kusamba, Chifundera" uniqKey="Kusamba C" first="Chifundera" last="Kusamba">Chifundera Kusamba</name><affiliation><nlm:affiliation>Centre de Recherche en Sciences Naturelles, Département de Biologie, Lwiro, The Democratic Republic of the Congo. Electronic address: chifkusamba@gmail.com.</nlm:affiliation></affiliation></author><author><name sortKey="Nagy, Zoltan T" sort="Nagy, Zoltan T" uniqKey="Nagy Z" first="Zoltán T" last="Nagy">Zoltán T. Nagy</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Joint Experimental Molecular Unit, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium. Electronic address: ztnagy@naturalsciences.be.</nlm:affiliation></affiliation></author><author><name sortKey="Pabijan, Maciej" sort="Pabijan, Maciej" uniqKey="Pabijan M" first="Maciej" last="Pabijan">Maciej Pabijan</name><affiliation><nlm:affiliation>Department of Comparative Anatomy, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland. Electronic address: maciej.pabijan@uj.edu.pl.</nlm:affiliation></affiliation></author><author><name sortKey="Penner, Johannes" sort="Penner, Johannes" uniqKey="Penner J" first="Johannes" last="Penner">Johannes Penner</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Wildlife Ecology & Management, University of Freiburg, Tennenbacher Str. 4, 79106 Freiburg, Germany. Electronic address: johannes.penner@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Rodel, Mark Oliver" sort="Rodel, Mark Oliver" uniqKey="Rodel M" first="Mark-Oliver" last="Rödel">Mark-Oliver Rödel</name><affiliation><nlm:affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: mo.roedel@mfn-berlin.de.</nlm:affiliation></affiliation></author><author><name sortKey="Vences, Miguel" sort="Vences, Miguel" uniqKey="Vences M" first="Miguel" last="Vences">Miguel Vences</name><affiliation><nlm:affiliation>Division of Evolutionary Biology, Zoological Institute, Technical University of Braunschweig, Mendelssohnstraße. 4, 38106 Braunschweig, Germany. Electronic address: m.vences@tu-braunschweig.de.</nlm:affiliation></affiliation></author><author><name sortKey="Lotters, Stefan" sort="Lotters, Stefan" uniqKey="Lotters S" first="Stefan" last="Lötters">Stefan Lötters</name><affiliation><nlm:affiliation>Trier University, Department of Biogeography, 54286 Trier, Germany. Electronic address: loetters@uni-trier.de.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Molecular phylogenetics and evolution</title><idno type="eISSN">1095-9513</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The Mascarene ridged frog, Ptychadena mascareniensis, is a species complex that includes numerous lineages occurring mostly in humid savannas and open forests of mainland Africa, Madagascar, the Seychelles, and the Mascarene Islands. Sampling across this broad distribution presents an opportunity to examine the genetic differentiation within this complex and to investigate how the evolution of bioclimatic niches may have shaped current biogeographic patterns. Using model-based phylogenetic methods and molecular-clock dating, we constructed a time-calibrated molecular phylogenetic hypothesis for the group based on mitochondrial 16S rRNA and cytochrome b (cytb) genes and the nuclear RAG1 gene from 173 individuals. Haplotype networks were reconstructed and species boundaries were investigated using three species-delimitation approaches: Bayesian generalized mixed Yule-coalescent model (bGMYC), the Poisson Tree Process model (PTP) and a cluster algorithm (SpeciesIdentifier). Estimates of similarity in bioclimatic niche were calculated from species-distribution models (maxent) and multivariate statistics (Principal Component Analysis, Discriminant Function Analysis). Ancestral-area reconstructions were performed on the phylogeny using probabilistic approaches implemented in BioGeoBEARS. We detected high levels of genetic differentiation yielding ten distinct lineages or operational taxonomic units, and Central Africa was found to be a diversity hotspot for these frogs. Most speciation events took place throughout the Miocene, including "out-of-Africa" overseas dispersal events to Madagascar in the East and to São Tomé in the West. Bioclimatic niche was remarkably well conserved, with most species tolerating similar temperature and rainfall conditions common to the Central African region. The P. mascareniensis complex provides insights into how bioclimatic niche shaped the current biogeographic patterns with niche conservatism being exhibited by the Central African radiation and niche divergence shaping populations in West Africa and Madagascar. Central Africa, including the Albertine Rift region, has been an important center of diversification for this species complex.</div></front></TEI><pubmed><MedlineCitation Status="In-Data-Review" Owner="NLM"><PMID Version="1">27664344</PMID><DateCreated><Year>2016</Year><Month>09</Month><Day>24</Day></DateCreated><DateRevised><Year>2016</Year><Month>11</Month><Day>06</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1095-9513</ISSN><JournalIssue CitedMedium="Internet"><Volume>106</Volume><PubDate><Year>2017</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Molecular phylogenetics and evolution</Title><ISOAbbreviation>Mol. Phylogenet. Evol.</ISOAbbreviation></Journal><ArticleTitle>Leapfrogging into new territory: How Mascarene ridged frogs diversified across Africa and Madagascar to maintain their ecological niche.</ArticleTitle><Pagination><MedlinePgn>254-269</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S1055-7903(16)30243-3</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ympev.2016.09.018</ELocationID><Abstract><AbstractText NlmCategory="UNASSIGNED">The Mascarene ridged frog, Ptychadena mascareniensis, is a species complex that includes numerous lineages occurring mostly in humid savannas and open forests of mainland Africa, Madagascar, the Seychelles, and the Mascarene Islands. Sampling across this broad distribution presents an opportunity to examine the genetic differentiation within this complex and to investigate how the evolution of bioclimatic niches may have shaped current biogeographic patterns. Using model-based phylogenetic methods and molecular-clock dating, we constructed a time-calibrated molecular phylogenetic hypothesis for the group based on mitochondrial 16S rRNA and cytochrome b (cytb) genes and the nuclear RAG1 gene from 173 individuals. Haplotype networks were reconstructed and species boundaries were investigated using three species-delimitation approaches: Bayesian generalized mixed Yule-coalescent model (bGMYC), the Poisson Tree Process model (PTP) and a cluster algorithm (SpeciesIdentifier). Estimates of similarity in bioclimatic niche were calculated from species-distribution models (maxent) and multivariate statistics (Principal Component Analysis, Discriminant Function Analysis). Ancestral-area reconstructions were performed on the phylogeny using probabilistic approaches implemented in BioGeoBEARS. We detected high levels of genetic differentiation yielding ten distinct lineages or operational taxonomic units, and Central Africa was found to be a diversity hotspot for these frogs. Most speciation events took place throughout the Miocene, including "out-of-Africa" overseas dispersal events to Madagascar in the East and to São Tomé in the West. Bioclimatic niche was remarkably well conserved, with most species tolerating similar temperature and rainfall conditions common to the Central African region. The P. mascareniensis complex provides insights into how bioclimatic niche shaped the current biogeographic patterns with niche conservatism being exhibited by the Central African radiation and niche divergence shaping populations in West Africa and Madagascar. Central Africa, including the Albertine Rift region, has been an important center of diversification for this species complex.</AbstractText><CopyrightInformation>Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zimkus</LastName><ForeName>Breda M</ForeName><Initials>BM</Initials><AffiliationInfo><Affiliation>Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138, USA. Electronic address: bzimkus@oeb.harvard.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lawson</LastName><ForeName>Lucinda P</ForeName><Initials>LP</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, University of Cincinnati, 820F Rieveschl Hall, Cincinnati, OH 45221, USA. Electronic address: lucinda.lawson@uc.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Barej</LastName><ForeName>Michael F</ForeName><Initials>MF</Initials><AffiliationInfo><Affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: MichaelF.Barej@mfn-berlin.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Barratt</LastName><ForeName>Christopher D</ForeName><Initials>CD</Initials><AffiliationInfo><Affiliation>University of Basel, Biogeography Research Group, Department of Environmental Sciences, Klingelbergstrasse 27, Basel 4056, Switzerland. Electronic address: c.d.barratt@gmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Channing</LastName><ForeName>Alan</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>University of the Western Cape, Biodiversity and Conservation Biology, Private Bag X17, Bellville 7535, South Africa. Electronic address: achanning@uwc.ac.za.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dash</LastName><ForeName>Katrina M</ForeName><Initials>KM</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA; Department of Biology, Tidewater Community College, 120 Campus Dr., Portsmouth, VA 23701, USA. Electronic address: kmweber@miners.utep.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dehling</LastName><ForeName>J Maximilian</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>Institute of Integrated Sciences, Department of Biology, University of Koblenz-Landau, Universitätsstraße 1, 56070 Koblenz, Germany. Electronic address: dehling@uni-koblenz.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Du Preez</LastName><ForeName>Louis</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa; South African Institute for Aquatic Biodiversity, Somerset Street, Grahamstown 6139, South Africa. Electronic address: Louis.DuPreez@nwu.ac.za.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gehring</LastName><ForeName>Philip-Sebastian</ForeName><Initials>PS</Initials><AffiliationInfo><Affiliation>Fakultät für Biologie Universität Bielefeld, Abt. Biologiedidaktik, Universitätsstraße 25, 33615 Bielefeld, Germany. Electronic address: SebastianGehring@web.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Greenbaum</LastName><ForeName>Eli</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA. Electronic address: egreenbaum2@utep.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gvoždík</LastName><ForeName>Václav</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Institute of Vertebrate Biology, Czech Academy of Sciences, 603 65 Brno, Czech Republic; National Museum, Department of Zoology, 19300 Prague, Czech Republic. Electronic address: vaclav.gvozdik@ivb.cz.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Harvey</LastName><ForeName>James</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Harvey Ecological, 35 Carbis Road, Pietermaritzburg 3201, KwaZulu-Natal, South Africa. Electronic address: info@harveyecological.co.za.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kielgast</LastName><ForeName>Jos</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Department of Biology, University of Copenhagen, Copenhagen, Denmark. Electronic address: joskielgast@hotmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kusamba</LastName><ForeName>Chifundera</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Centre de Recherche en Sciences Naturelles, Département de Biologie, Lwiro, The Democratic Republic of the Congo. Electronic address: chifkusamba@gmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Nagy</LastName><ForeName>Zoltán T</ForeName><Initials>ZT</Initials><AffiliationInfo><Affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Joint Experimental Molecular Unit, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium. Electronic address: ztnagy@naturalsciences.be.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Pabijan</LastName><ForeName>Maciej</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Department of Comparative Anatomy, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland. Electronic address: maciej.pabijan@uj.edu.pl.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Penner</LastName><ForeName>Johannes</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany; Wildlife Ecology & Management, University of Freiburg, Tennenbacher Str. 4, 79106 Freiburg, Germany. Electronic address: johannes.penner@mfn-berlin.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rödel</LastName><ForeName>Mark-Oliver</ForeName><Initials>MO</Initials><AffiliationInfo><Affiliation>Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany. Electronic address: mo.roedel@mfn-berlin.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vences</LastName><ForeName>Miguel</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Division of Evolutionary Biology, Zoological Institute, Technical University of Braunschweig, Mendelssohnstraße. 4, 38106 Braunschweig, Germany. Electronic address: m.vences@tu-braunschweig.de.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lötters</LastName><ForeName>Stefan</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Trier University, Department of Biogeography, 54286 Trier, Germany. Electronic address: loetters@uni-trier.de.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2016</Year><Month>09</Month><Day>21</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Mol Phylogenet Evol</MedlineTA><NlmUniqueID>9304400</NlmUniqueID><ISSNLinking>1055-7903</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Amphibia</Keyword><Keyword MajorTopicYN="N">Historical biogeography</Keyword><Keyword MajorTopicYN="N">Pan-African</Keyword><Keyword MajorTopicYN="N">Phylogeny</Keyword><Keyword MajorTopicYN="N">Ptychadena</Keyword><Keyword MajorTopicYN="N">Species delimitation</Keyword><Keyword MajorTopicYN="N">Species distribution modeling</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>06</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2016</Year><Month>09</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>09</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2016</Year><Month>9</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2016</Year><Month>9</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>9</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27664344</ArticleId><ArticleId IdType="pii">S1055-7903(16)30243-3</ArticleId><ArticleId IdType="doi">10.1016/j.ympev.2016.09.018</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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