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Go West: A One Way Stepping-Stone Dispersion Model for the Cavefish Lucifuga dentata in Western Cuba.
Hernández, Damir; Casane, Didier; Chevalier-Monteagudo, Pedro; Bernatchez, Louis; García-Machado, Erik.
Afiliação
  • Hernández D; Centro de Investigaciones Marinas, Universidad de La Habana, Calle 16, No. 114 entre 1ra y 3ra, Miramar, Playa, La Habana, 11300, Cuba.
  • Casane D; Laboratoire Evolution, Génomes, Comportement, Ecologie, CNRS, Université Paris-Sud, UMR 9191, IRD UMR 247, Gif-sur-Yvette, France.
  • Chevalier-Monteagudo P; Université Paris-Diderot, Sorbonne Paris-Cité, Paris, France.
  • Bernatchez L; Acuario Nacional de Cuba, Calle 60, Miramar, Playa, La Habana, 11300, Cuba.
  • García-Machado E; Institut de Biologie Intégrative et des Systèmes (IBIS), Pavillon Charles-Eugène Marchand, Université Laval, Québec, QC, G1V 0A6, Canada.
PLoS One ; 11(4): e0153545, 2016.
Article em En | MEDLINE | ID: mdl-27082117
Consistent with the limited dispersal capacity of most troglobitic animals, almost all Lucifuga cavefish species have very narrow geographic distribution in Cuba. However, one species, L. dentata, has a wide but disjointed distribution over 300 km in the west of the island. In order to estimate the relative role of vicariance and dispersal in the unexpected L. dentata distribution, we obtained partial sequences of the mitochondrial DNA (mtDNA) cytochrome b (cytb) gene and control region (CR), and then applied Approximate Bayesian Computation (ABC), based on the identification of five genetic and geographic congruent groups of populations. The process that best explains the distribution of genetic diversity in this species is sequential range expansion from east Matanzas to the western Pinar del Río provinces, followed by isolation of groups of populations. We found relative high haplotype diversity and low nucleotide diversity in all but the Havana group, which has high values for both diversity parameters, suggesting that this group has been demographically stable over time. For two groups of populations (Cayuco and Bolondrón), the mismatch distribution analyses suggests past demographic expansion. In the case of the Cayuco region, the star like relationships of haplotypes in the network suggests a recent founding event, congruent with other evidence indicating that this is the most recently colonized region. Over all, the results suggest that a combination of habitat availability, temporal interconnections, and possibly the biological properties of this species, may have enabled its dispersal and range expansion compared to other species of the genus, which are more geographically restricted.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Migração Animal / Peixes / Genética Populacional Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: Caribe / Cuba Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Cuba País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Migração Animal / Peixes / Genética Populacional Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: Caribe / Cuba Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Cuba País de publicação: Estados Unidos