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Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses

Dispersal affects the distribution, dynamics and genetic structure of natural populations, and can be significantly different between sexes. However, literature records dealing with the dispersal of migratory birds are scarce, as migratory behaviour can notably complicate the study of dispersal. We...

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Autores principales: Guerrini, Monica, Gennai, Clizia, Panayides, Panicos, Crabtree, Alan, Zuberogoitia, Iñigo, Copland, Alex S., Babushkina, Olga, Politi, Paolo M., Giunchi, Dimitri, Barbanera, Filippo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4041750/
https://www.ncbi.nlm.nih.gov/pubmed/24886720
http://dx.doi.org/10.1371/journal.pone.0098574
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author Guerrini, Monica
Gennai, Clizia
Panayides, Panicos
Crabtree, Alan
Zuberogoitia, Iñigo
Copland, Alex S.
Babushkina, Olga
Politi, Paolo M.
Giunchi, Dimitri
Barbanera, Filippo
author_facet Guerrini, Monica
Gennai, Clizia
Panayides, Panicos
Crabtree, Alan
Zuberogoitia, Iñigo
Copland, Alex S.
Babushkina, Olga
Politi, Paolo M.
Giunchi, Dimitri
Barbanera, Filippo
author_sort Guerrini, Monica
collection PubMed
description Dispersal affects the distribution, dynamics and genetic structure of natural populations, and can be significantly different between sexes. However, literature records dealing with the dispersal of migratory birds are scarce, as migratory behaviour can notably complicate the study of dispersal. We used the barn swallow Hirundo rustica as model taxon to investigate patterns of genetic variability in males and in females of a migratory species showing sex-biased dispersal. We collected blood samples (n = 186) over the period 2006 to 2011 from adults (H. r. rustica subspecies) nesting in the same breeding site at either high (Ireland, Germany and Russia) or low (Spain, Italy and Cyprus) latitude across Europe. We amplified the Chromo Helicase DNA gene in all birds in order to warrant a sex-balanced sample size (92 males, 94 females). We investigated both uniparental (mitochondrial ND2 gene) and biparental (microsatellite DNA: 10 loci) genetic systems. The mtDNA provided evidence for demographic expansion yet no significant partition of the genetic variability was disclosed. Nevertheless, a comparatively distant Russian population investigated in another study, whose sequences were included in the present dataset, significantly diverged from all other ones. Different to previous studies, microsatellites highlighted remarkable genetic structure among the studied populations, and pointed to the occurrence of differences between male and female barn swallows. We produced evidence for non-random patterns of gene flow among barn swallow populations probably mediated by female natal dispersal, and we found significant variability in the philopatry of males of different populations. Our data emphasize the importance of taking into account the sex of sampled individuals in order to obtain reliable inferences on species characterized by different patterns of dispersal between males and females.
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spelling pubmed-40417502014-06-09 Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses Guerrini, Monica Gennai, Clizia Panayides, Panicos Crabtree, Alan Zuberogoitia, Iñigo Copland, Alex S. Babushkina, Olga Politi, Paolo M. Giunchi, Dimitri Barbanera, Filippo PLoS One Research Article Dispersal affects the distribution, dynamics and genetic structure of natural populations, and can be significantly different between sexes. However, literature records dealing with the dispersal of migratory birds are scarce, as migratory behaviour can notably complicate the study of dispersal. We used the barn swallow Hirundo rustica as model taxon to investigate patterns of genetic variability in males and in females of a migratory species showing sex-biased dispersal. We collected blood samples (n = 186) over the period 2006 to 2011 from adults (H. r. rustica subspecies) nesting in the same breeding site at either high (Ireland, Germany and Russia) or low (Spain, Italy and Cyprus) latitude across Europe. We amplified the Chromo Helicase DNA gene in all birds in order to warrant a sex-balanced sample size (92 males, 94 females). We investigated both uniparental (mitochondrial ND2 gene) and biparental (microsatellite DNA: 10 loci) genetic systems. The mtDNA provided evidence for demographic expansion yet no significant partition of the genetic variability was disclosed. Nevertheless, a comparatively distant Russian population investigated in another study, whose sequences were included in the present dataset, significantly diverged from all other ones. Different to previous studies, microsatellites highlighted remarkable genetic structure among the studied populations, and pointed to the occurrence of differences between male and female barn swallows. We produced evidence for non-random patterns of gene flow among barn swallow populations probably mediated by female natal dispersal, and we found significant variability in the philopatry of males of different populations. Our data emphasize the importance of taking into account the sex of sampled individuals in order to obtain reliable inferences on species characterized by different patterns of dispersal between males and females. Public Library of Science 2014-06-02 /pmc/articles/PMC4041750/ /pubmed/24886720 http://dx.doi.org/10.1371/journal.pone.0098574 Text en © 2014 Guerrini et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Guerrini, Monica
Gennai, Clizia
Panayides, Panicos
Crabtree, Alan
Zuberogoitia, Iñigo
Copland, Alex S.
Babushkina, Olga
Politi, Paolo M.
Giunchi, Dimitri
Barbanera, Filippo
Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title_full Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title_fullStr Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title_full_unstemmed Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title_short Large-Scale Patterns of Genetic Variation in a Female-Biased Dispersing Passerine: The Importance of Sex-Based Analyses
title_sort large-scale patterns of genetic variation in a female-biased dispersing passerine: the importance of sex-based analyses
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4041750/
https://www.ncbi.nlm.nih.gov/pubmed/24886720
http://dx.doi.org/10.1371/journal.pone.0098574
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