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Phylogeographic relationships and morphological evolution between cave and surface Astyanax mexicanus populations (De Filippi 1853) (Actinopterygii, Characidae).
Garduño-Sánchez, Marco; Hernández-Lozano, Jorge; Moran, Rachel L; Miranda-Gamboa, Ramsés; Gross, Joshua B; Rohner, Nicolas; Elliott, William R; Miller, Jeff; Lozano-Vilano, Lourdes; McGaugh, Suzanne E; Ornelas-García, C Patricia.
Afiliación
  • Garduño-Sánchez M; Colección Nacional de Peces, Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico.
  • Hernández-Lozano J; Colección Nacional de Peces, Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico.
  • Moran RL; Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, Minnesota, USA.
  • Miranda-Gamboa R; Department of Ecology & Evolution, University of Chicago, Chicago, Illinois, USA.
  • Gross JB; Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Mexico.
  • Rohner N; Department of Biological Sciences, University of Cincinnati, Cincinnati, Ohio, USA.
  • Elliott WR; Stowers Institute for Medical Research, Kansas City, Missouri, USA.
  • Miller J; Department of Molecular & Integrative Physiology, KU Medical Center, Kansas City, Kansas, USA.
  • Lozano-Vilano L; Association for Mexican Cave Studies, Austin, Texas, USA.
  • McGaugh SE; Missouri Department of Conservation, Georgetown, Texas, USA.
  • Ornelas-García CP; Department of Molecular Cellular and Biomedical Sciences, University of New Hampshire, Durham, New Hampshire, USA.
Mol Ecol ; 32(20): 5626-5644, 2023 Oct.
Article en En | MEDLINE | ID: mdl-37712324
The Astyanax mexicanus complex includes two different morphs, a surface- and a cave-adapted ecotype, found at three mountain ranges in Northeastern Mexico: Sierra de El Abra, Sierra de Guatemala and Sierra de la Colmena (Micos). Since their discovery, multiple studies have attempted to characterize the timing and the number of events that gave rise to the evolution of these cave-adapted ecotypes. Here, using RADseq and genome-wide sequencing, we assessed the phylogenetic relationships, genetic structure and gene flow events between the cave and surface Astyanax mexicanus populations, to estimate the tempo and mode of evolution of the cave-adapted ecotypes. We also evaluated the body shape evolution across different cave lineages using geometric morphometrics to examine the role of phylogenetic signal versus environmental pressures. We found strong evidence of parallel evolution of cave-adapted ecotypes derived from two separate lineages of surface fish and hypothesize that there may be up to four independent invasions of caves from surface fish. Moreover, a strong congruence between the genetic structure and geographic distribution was observed across the cave populations, with the Sierra de Guatemala the region exhibiting most genetic drift among the cave populations analysed. Interestingly, we found no evidence of phylogenetic signal in body shape evolution, but we found support for parallel evolution in body shape across independent cave lineages, with cavefish from the Sierra de El Abra reflecting the most divergent morphology relative to surface and other cavefish populations.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: Mexico Idioma: En Revista: Mol Ecol Asunto de la revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: México Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: Mexico Idioma: En Revista: Mol Ecol Asunto de la revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: México Pais de publicación: Reino Unido