Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.

Phylogeographic patterns and sex-biased dispersal were studied in riverine populations of West Indian (Trichechus manatus) and Amazonian manatees (T. inunguis) in South America, using 410bp D-loop (Control Region, Mitochondrial DNA) sequences and 15 nuclear microsatellite loci. This multi-locus appr...

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Main Authors: Paula Satizábal, Antonio A Mignucci-Giannoni, Sebastián Duchêne, Dalila Caicedo-Herrera, Carlos M Perea-Sicchar, Carmen R García-Dávila, Fernando Trujillo, Susana J Caballero
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3527500?pdf=render
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author Paula Satizábal
Antonio A Mignucci-Giannoni
Sebastián Duchêne
Dalila Caicedo-Herrera
Carlos M Perea-Sicchar
Carmen R García-Dávila
Fernando Trujillo
Susana J Caballero
author_facet Paula Satizábal
Antonio A Mignucci-Giannoni
Sebastián Duchêne
Dalila Caicedo-Herrera
Carlos M Perea-Sicchar
Carmen R García-Dávila
Fernando Trujillo
Susana J Caballero
author_sort Paula Satizábal
collection DOAJ
description Phylogeographic patterns and sex-biased dispersal were studied in riverine populations of West Indian (Trichechus manatus) and Amazonian manatees (T. inunguis) in South America, using 410bp D-loop (Control Region, Mitochondrial DNA) sequences and 15 nuclear microsatellite loci. This multi-locus approach was key to disentangle complex patterns of gene flow among populations. D-loop analyses revealed population structuring among all Colombian rivers for T. manatus, while microsatellite data suggested no structure. Two main populations of T. inunguis separating the Colombian and Peruvian Amazon were supported by analysis of the D-loop and microsatellite data. Overall, we provide molecular evidence for differences in dispersal patterns between sexes, demonstrating male-biased gene flow dispersal in riverine manatees. These results are in contrast with previously reported levels of population structure shown by microsatellite data in marine manatee populations, revealing low habitat restrictions to gene flow in riverine habitats, and more significant dispersal limitations for males in marine environments.
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spelling doaj.art-03297dbd405a49c5a10f56e8a049b7b42022-12-22T01:59:34ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01712e5246810.1371/journal.pone.0052468Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.Paula SatizábalAntonio A Mignucci-GiannoniSebastián DuchêneDalila Caicedo-HerreraCarlos M Perea-SiccharCarmen R García-DávilaFernando TrujilloSusana J CaballeroPhylogeographic patterns and sex-biased dispersal were studied in riverine populations of West Indian (Trichechus manatus) and Amazonian manatees (T. inunguis) in South America, using 410bp D-loop (Control Region, Mitochondrial DNA) sequences and 15 nuclear microsatellite loci. This multi-locus approach was key to disentangle complex patterns of gene flow among populations. D-loop analyses revealed population structuring among all Colombian rivers for T. manatus, while microsatellite data suggested no structure. Two main populations of T. inunguis separating the Colombian and Peruvian Amazon were supported by analysis of the D-loop and microsatellite data. Overall, we provide molecular evidence for differences in dispersal patterns between sexes, demonstrating male-biased gene flow dispersal in riverine manatees. These results are in contrast with previously reported levels of population structure shown by microsatellite data in marine manatee populations, revealing low habitat restrictions to gene flow in riverine habitats, and more significant dispersal limitations for males in marine environments.http://europepmc.org/articles/PMC3527500?pdf=render
spellingShingle Paula Satizábal
Antonio A Mignucci-Giannoni
Sebastián Duchêne
Dalila Caicedo-Herrera
Carlos M Perea-Sicchar
Carmen R García-Dávila
Fernando Trujillo
Susana J Caballero
Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
PLoS ONE
title Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
title_full Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
title_fullStr Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
title_full_unstemmed Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
title_short Phylogeography and sex-biased dispersal across riverine manatee populations (Trichechus inunguis and Trichechus manatus) in South America.
title_sort phylogeography and sex biased dispersal across riverine manatee populations trichechus inunguis and trichechus manatus in south america
url http://europepmc.org/articles/PMC3527500?pdf=render
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