Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae)
We compared the phylogeographic and genetic structure of two sympatric shag species, Phalacrocorax magellanicus (rock shag) and Phalacrocorax atriceps (imperial shag), from Patagonia (southern South America). We used multilocus genotypes of nuclear DNA (microsatellite loci) from 324 individuals and...
Published in: | Molecular Phylogenetics and Evolution |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Academic Press Inc Elsevier Science
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/101847 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/101847 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/101847 2023-10-09T21:52:54+02:00 Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) Calderón, Pablo Luciano Sebastian Quintana, Flavio Roberto Cabanne, Gustavo Sebastián Lougheed, Stephen Tubaro, Pablo Luis application/pdf http://hdl.handle.net/11336/101847 eng eng Academic Press Inc Elsevier Science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2013.12.011 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1055790314000037 http://hdl.handle.net/11336/101847 Calderón, Pablo Luciano Sebastian; Quintana, Flavio Roberto; Cabanne, Gustavo Sebastián; Lougheed, Stephen; Tubaro, Pablo Luis; Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae); Academic Press Inc Elsevier Science; Molecular Phylogenetics and Evolution; 72; 1-2014; 42-53 1055-7903 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Phylogeography Population genetics Physical barriers Non-physical barriers Geneflow Seabirds https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.ympev.2013.12.011 2023-09-24T19:17:41Z We compared the phylogeographic and genetic structure of two sympatric shag species, Phalacrocorax magellanicus (rock shag) and Phalacrocorax atriceps (imperial shag), from Patagonia (southern South America). We used multilocus genotypes of nuclear DNA (microsatellite loci) from 324 individuals and mitochondrial DNA sequences (ATPase) from 177 individuals, to evaluate hypotheses related to the effect of physical and non-physical barriers on seabird evolution. Despite sharing many ecological traits, the focal species strongly differ in two key aspects: P. magellanicus has a strong tendency to remain at/near their breeding colonies during foraging trips and the non-breeding season, while P. atriceps exhibits the converse pattern. Both species showed similar mtDNA genetic structure, where colonies from the Atlantic Coast, Pacific Coast and Fuegian region were genetically divergent. We also found similarities in the results of Bayesian clustering analysis of microsatellites, with both species having four clusters. However population differentiation (e.g. Fst, Ust) was higher in P. magellanicus compared to P. atriceps, and average membership probabilities of individuals to specific clusters (Q-values) were also higher in the former. Phalacrocorax magellanicus has strong phylogeographic structure, consistent with the impact of Pleistocene glaciations, with diagnostic haplotypes associated with each of the three mentioned regions. The same pattern was not as evident for P. atriceps. Migration rate estimators were higher for P. atriceps than for P. magellanicus; however both species followed an n-island-like model of gene flow, this implies that dispersal occurs across the continental land mass that separates Atlantic and Pacific Oceans. Our results supported the hypothesis that non-physical barriers are important drivers of the genetic and phylogeographic structure in seabirds, and also that physical barriers constitute effective but not absolute impediments to gene flow. Fil: Calderón, Pablo Luciano Sebastian. ... Article in Journal/Newspaper Imperial Shag Phalacrocorax atriceps CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Patagonia Pacific Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) Calderón ENVELOPE(-57.967,-57.967,-63.300,-63.300) Molecular Phylogenetics and Evolution 72 42 53 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Phylogeography Population genetics Physical barriers Non-physical barriers Geneflow Seabirds https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Phylogeography Population genetics Physical barriers Non-physical barriers Geneflow Seabirds https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Calderón, Pablo Luciano Sebastian Quintana, Flavio Roberto Cabanne, Gustavo Sebastián Lougheed, Stephen Tubaro, Pablo Luis Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
topic_facet |
Phylogeography Population genetics Physical barriers Non-physical barriers Geneflow Seabirds https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
We compared the phylogeographic and genetic structure of two sympatric shag species, Phalacrocorax magellanicus (rock shag) and Phalacrocorax atriceps (imperial shag), from Patagonia (southern South America). We used multilocus genotypes of nuclear DNA (microsatellite loci) from 324 individuals and mitochondrial DNA sequences (ATPase) from 177 individuals, to evaluate hypotheses related to the effect of physical and non-physical barriers on seabird evolution. Despite sharing many ecological traits, the focal species strongly differ in two key aspects: P. magellanicus has a strong tendency to remain at/near their breeding colonies during foraging trips and the non-breeding season, while P. atriceps exhibits the converse pattern. Both species showed similar mtDNA genetic structure, where colonies from the Atlantic Coast, Pacific Coast and Fuegian region were genetically divergent. We also found similarities in the results of Bayesian clustering analysis of microsatellites, with both species having four clusters. However population differentiation (e.g. Fst, Ust) was higher in P. magellanicus compared to P. atriceps, and average membership probabilities of individuals to specific clusters (Q-values) were also higher in the former. Phalacrocorax magellanicus has strong phylogeographic structure, consistent with the impact of Pleistocene glaciations, with diagnostic haplotypes associated with each of the three mentioned regions. The same pattern was not as evident for P. atriceps. Migration rate estimators were higher for P. atriceps than for P. magellanicus; however both species followed an n-island-like model of gene flow, this implies that dispersal occurs across the continental land mass that separates Atlantic and Pacific Oceans. Our results supported the hypothesis that non-physical barriers are important drivers of the genetic and phylogeographic structure in seabirds, and also that physical barriers constitute effective but not absolute impediments to gene flow. Fil: Calderón, Pablo Luciano Sebastian. ... |
format |
Article in Journal/Newspaper |
author |
Calderón, Pablo Luciano Sebastian Quintana, Flavio Roberto Cabanne, Gustavo Sebastián Lougheed, Stephen Tubaro, Pablo Luis |
author_facet |
Calderón, Pablo Luciano Sebastian Quintana, Flavio Roberto Cabanne, Gustavo Sebastián Lougheed, Stephen Tubaro, Pablo Luis |
author_sort |
Calderón, Pablo Luciano Sebastian |
title |
Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
title_short |
Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
title_full |
Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
title_fullStr |
Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
title_full_unstemmed |
Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae) |
title_sort |
phylogeography and genetic structure of two patagonian shag species (aves: phalacrocoracidae) |
publisher |
Academic Press Inc Elsevier Science |
url |
http://hdl.handle.net/11336/101847 |
long_lat |
ENVELOPE(-63.717,-63.717,-64.283,-64.283) ENVELOPE(-57.967,-57.967,-63.300,-63.300) |
geographic |
Patagonia Pacific Pablo Calderón |
geographic_facet |
Patagonia Pacific Pablo Calderón |
genre |
Imperial Shag Phalacrocorax atriceps |
genre_facet |
Imperial Shag Phalacrocorax atriceps |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2013.12.011 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1055790314000037 http://hdl.handle.net/11336/101847 Calderón, Pablo Luciano Sebastian; Quintana, Flavio Roberto; Cabanne, Gustavo Sebastián; Lougheed, Stephen; Tubaro, Pablo Luis; Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae); Academic Press Inc Elsevier Science; Molecular Phylogenetics and Evolution; 72; 1-2014; 42-53 1055-7903 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.ympev.2013.12.011 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
72 |
container_start_page |
42 |
op_container_end_page |
53 |
_version_ |
1779316103797800960 |