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

Autor: Antonio A. Mignucci-Giannoni, Dalila Caicedo-Herrera, Susana Caballero, Carlos M. Perea-Sicchar, Carmen Rosa García-Dávila, Sebastián Duchêne, Fernando Trujillo, Paula Satizábal
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Evolutionary Genetics
Male
Trichechus manatus
Population Dynamics
Marine and Aquatic Sciences
lcsh:Medicine
Gene flow
Coalescent theory
Marine Conservation
bepress|Life Sciences
Trichechus inunguis
lcsh:Science
education.field_of_study
Sex Characteristics
Multidisciplinary
biology
Geography
Ecology
Phylogeography
Genes
Mitochondrial
Female
MarXiv|Life Sciences
Research Article
Gene Flow
Population
Molecular Sequence Data
Zoology
Marine Biology
MarXiv|Life Sciences|Ecology and Evolutionary Biology
bepress|Life Sciences|Ecology and Evolutionary Biology
Molecular Genetics
Rivers
biology.animal
Manatee
Genetics
Animals
education
Biology
bepress|Life Sciences|Ecology and Evolutionary Biology|Population Biology
Evolutionary Biology
Population Biology
lcsh:R
Genetic Variation
Bayes Theorem
South America
MarXiv|Life Sciences|Ecology and Evolutionary Biology|Population Biology
Genetics
Population
Haplotypes
Earth Sciences
Biological dispersal
Animal Migration
lcsh:Q
Animal Genetics
Population Genetics
Microsatellite Repeats
Zdroj: PLoS ONE, Vol 7, Iss 12, p e52468 (2012)
PLoS ONE
ISSN: 1932-6203
Popis: 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.
Databáze: OpenAIRE
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