• Publications
  • Influence
Resolution of ray-finned fish phylogeny and timing of diversification
  • T. Near, R. Eytan, +6 authors W. Smith
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences
  • 6 August 2012
Ray-finned fishes make up half of all living vertebrate species. Nearly all ray-finned fishes are teleosts, which include most commercially important fish species, several model organisms forExpand
Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography.
Two major hypotheses for the origin of the latitudinal diversity gradient are reviewed, including the time and area hypothesis and the diversification rate hypothesis, which hold that tropical regions diversify faster due to higher rates of speciation, or due to lower extinction rates. Expand
It is suggested that the classical model of adaptive radiation, where morphological evolution is initially rapid and slows through time, may be rare in comparative data. Expand
Phylogeny and tempo of diversification in the superradiation of spiny-rayed fishes
Analysis of clade-specific shifts in diversification rates reveal that the hyperdiversity of living acanthomorphs is highlighted by several rapidly radiating lineages including tunas, gobies, blennies, snailfishes, and Afro-American cichlids, indicating there is no single explanation for the success of acanthomorphics. Expand
Estimating divergence times of notothenioid fishes using a fossil-calibrated molecular clock
  • T. Near
  • Biology
  • Antarctic Science
  • 27 February 2004
Divergence time estimates provide initial observations for the development of a novel model of the diversification of cold adapted Antarctic notothenioid fishes using a tree-based maximum likelihood strategy that attempts to account for rate heterogeneity of nucleotide substitution rates among lineages using the penalized likelihood method. Expand
Assessing Concordance of Fossil Calibration Points in Molecular Clock Studies: An Example Using Turtles
A new cross‐validation method is presented that identifies inconsistent fossils when multiple fossil calibrations are available for a clade and it is found that despite their overall antiquity as a lineage, the most species‐rich clades of turtles diversified well within the Cenozoic. Expand
Ancient climate change, antifreeze, and the evolutionary diversification of Antarctic fishes
The results challenge the current understanding of the evolution of Antarctic notothenioids suggesting that the ecological opportunity that underlies this adaptive radiation is not linked to a single trait, but rather to a combination of freeze avoidance offered by AFGPs and subsequent exploitation of new habitats and open niches created by increased glacial and ice sheet activity. Expand
Molecular and fossil evidence place the origin of cichlid fishes long after Gondwanan rifting
The results provide a revised macroevolutionary time scale for cichlids, imply a role for dispersal in generating the observed geographical distribution of this important model clade and add to a growing debate that questions the dominance of the vicariance paradigm of historical biogeography. Expand
Phylogenetic investigations of Antarctic notothenioid fishes (Perciformes: Notothenioidei) using complete gene sequences of the mitochondrial encoded 16S rRNA.
With the most extensive notothenioid taxon sampling to date, and the much greater phylogenetic resolution offered by the complete 16S rRNA sequences over the commonly used partial 12S and 16S gene dataset, it would be advantageous for future molecular investigations of nototenioid phylogenetics to utilize at the minimum the complete gene 16s rRNA dataset. Expand
Functional antifreeze glycoprotein genes in temperate-water New Zealand nototheniid fish infer an Antarctic evolutionary origin.
Genomic Southern analysis, PCR amplification of AFGP genes, and sequencing showed that Notothenia angustata and Nototenia microlepidota endemic to southern New Zealand have two to three AF GP genes, structurally the same as those of the Antarctic nototheniids, supporting an Antarctic ancestry for the New Zealand nototeniids. Expand