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Temporal diversification of Mesoamerican cichlid fishes across a major biogeographic boundary.
TLDR
The results indicate the 5-million-year-old extension of the Mexican Neovolcanic Plateau to the Gulf Coast of Mexico has strongly influenced the current transition between the vertebrate faunas of the Neotropics and Nearctic. Expand
Microsatellite polymorphism and population subdivision in natural populations of European sea bass Dicentrarchus labrax (Linnaeus, 1758)
TLDR
The results indicate that the genetic polymorphism in microsatellite loci is very high when compared with previously used genetic markers, and there may be a slight genetic differentiation between the two gulfs, indicating that the corresponding populations are likely to be dynamically independent. Expand
Convergence among cave catfishes: long-branch attraction and a Bayesian relative rates test.
TLDR
A new Bayesian method for examining variation in molecular rates of evolution across a phylogeny is developed and reported on in two cave-catfishes that were described on morphological grounds as congeners: Prietella phreatophila and Priet Bella lundbergi. Expand
Systematics of the grey mullets (Teleostei: Mugiliformes: Mugilidae): molecular phylogenetic evidence challenges two centuries of morphology-based taxonomy.
TLDR
This study provides the first comprehensive molecular systematic account of the Mugilidae using phylogenetic analyses of nucleotide sequence variation at three mitochondrial loci for 257 individuals from 55 currently recognized species to provide a sound basis for a taxonomic revision of the mugilid genera. Expand
Shared Preferences by Predators and Females for Male Ornaments in Swordtails
TLDR
The Mexican tetra Astyanax mexicanus (Pisces: Characidae), a visual predator of swordtail fishes, exhibits the same visual preferences for male body size morphs as do females, and tetras in populations where swordtails are absent prefer males with sword ornaments over males with swords removed. Expand
Dissolution of Sexual Signal Complexes in a Hybrid Zone between the Swordtails Xiphophorus birchmanni and Xiphophorus malinche (Poeciliidae)
TLDR
Although the presumed female preference for swords predicts the introgression of swords from X. malinche-like populations into hybrid populations, the opposite pattern was observed, indicating that sexual selection does not act against recombinant phenotypes. Expand
Toxic Hydrogen Sulfide and Dark Caves: Phenotypic and Genetic Divergence Across Two Abiotic Environmental Gradients in Poecilia mexicana
TLDR
Strong molecular divergence over short distances as well as phenotypic and quantitative genetic divergence across habitats in directions classic to fish ecomorphology suggest that divergent selection is structuring phenotypesic variation in this system. Expand
Next generation phylogeography of cave and surface Astyanax mexicanus.
TLDR
A high-resolution phylogeography is reconstructed for Astyanax mexicanus cave populations from the Sabinos and Río Subterráneo caves and it is shown that theSabinos cave population is part of a unique cave lineage unrelated to other A. mexicansus populations. Expand
Phylogeography, genetic structure, and gene flow in the endemic freshwater shrimp Palaemonetes suttkusi from Cuatro Ciénegas, Mexico
TLDR
It is recommended that the upper parts of the Río Salado, the Pozas Azules area, and the rest of the Cuatro Ciénegas basin should each be considered independent evolutionarily significant units for conservation, and that migration of species through human-made canals should be monitored and controlled. Expand
Local adaptation and pronounced genetic differentiation in an extremophile fish, Poecilia mexicana, inhabiting a Mexican cave with toxic hydrogen sulphide
TLDR
Investigation of genetic differentiation and migration patterns in a small livebearing fish inhabiting a sulfidic Mexican limestone cave found pronounced genetic differentiation among the three major habitats: Arroyo Cristal, El Azufre and the cave, but does not support the proposed mechanism for this morphocline, eye size. Expand
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