Sistemática molecular de cinco especies de bagres de la familia Ariidae de México
We analyzed five representative species of marine catfish Ariidae family from both coasts of México (Pacific and Atlantic), through of the analysis, of the variability in 21 alloenzymatic loci to further the phylogeny of this group. Of the 21 loci resolved, 20 were polymorphic in Cathorops aguadulce...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | México |
| Institución: | Universidad Autónoma Metropolitana |
| Repositorio: | Repositorio Institucional de la UAM Iztapalapa |
| Idioma: | español |
| OAI Identifier: | oai:bindani.izt.uam.mx:8623hz06b |
| Acceso en línea: | https://doi.org/10.24275/uami.8623hz06b |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/LEM/Phylogeny -- Molecular aspects info:eu-repo/classification/LEM/Electroforesis info:eu-repo/classification/LEM/Filogenia -- Aspectos moleculares info:eu-repo/classification/LEM/Ictaluridae info:eu-repo/classification/LEM/Bagres info:eu-repo/classification/LEM/Electroforesist info:eu-repo/classification/cti/3 |
| Sumario: | We analyzed five representative species of marine catfish Ariidae family from both coasts of México (Pacific and Atlantic), through of the analysis, of the variability in 21 alloenzymatic loci to further the phylogeny of this group. Of the 21 loci resolved, 20 were polymorphic in Cathorops aguadulce (95.2%), 3 in Cathorops fuerthii (14.3%), 14 in Ariopsis felis (66.6%), 15 in Ariopsis guatemalensis (71.4%) and 11 in Bagre marinus (52.3%). The lower level of variability was found in Ariopsis guatemalensis with mean heterozygosity observed (Ho) of 0.007, while the greatest variability occurred in Ariopsis felis (Ho=0.086). The levels of interspecific divergence estimated from electrophoretic data showed a clear separation between the genus Cathorops, Bagre and Ariopsis. A proposal phylogenetic is made, using Neighbor Joining method for grouping species according to the genetic distances of Reynolds et al. (1983), showed that two species of Ariopsis are grouped and with Bagre marinus node form a clearly separate from the genus Cathorops. Support for the branches obtained by bootstrapping was of 93.18% for the branch of Ariopsis felis with Ariopsis guatemalensis, and 68.72% for Cathorops species, supporting the hypothesis that the genus Ariopsis forms a node close to Bagre marinus, while genus Cathorops is clearly separated from the latter. Keywords: Ariidae, catfish, electrophoresis, phylogenetic, alozymes. |
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