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Breakdown of Phylogenetic Signal: A Survey of Microsatellite Densities in 454 Shotgun Sequences from 154 Non Model Eukaryote Species

PLoS One, Jul 2012, Vol.7(7), p.e40861 [Peer Reviewed Journal]

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  • Title:
    Breakdown of Phylogenetic Signal: A Survey of Microsatellite Densities in 454 Shotgun Sequences from 154 Non Model Eukaryote Species
  • Author: Meglécz, Emese ; Nève, Gabriel ; Biffin, Ed ; Gardner, Michael
  • Found In: PLoS One, Jul 2012, Vol.7(7), p.e40861 [Peer Reviewed Journal]
  • Subjects: Squamata ; France ; Amphisbaenians ; Adelaide South Australia Australia ; Divergence ; Phylogenetics ; Evolution ; Environmental Science ; Bioinformatics ; Genomes ; Mutation ; Genomes ; Eukaryotes ; Autocorrelation ; Phylogeny ; Arthropods ; Bias ; Microsatellites ; Data Processing ; Species
  • Language: English
  • Description: Microsatellites are ubiquitous in Eukaryotic genomes. A more complete understanding of their origin and spread can be gained from a comparison of their distribution within a phylogenetic context. Although information for model species is accumulating rapidly, it is insufficient due to a lack of species depth, thus intragroup variation is necessarily ignored. As such, apparent differences between groups may be overinflated and generalizations cannot be inferred until an analysis of the variation that exists within groups has been conducted. In this study, we examined microsatellite coverage and motif patterns from 454 shotgun sequences of 154 Eukaryote species from eight distantly related phyla (Cnidaria, Arthropoda, Onychophora, Bryozoa, Mollusca, Echinodermata, Chordata and Streptophyta) to test if a consistent phylogenetic pattern emerges from the microsatellite composition of these species. It is clear from our results that data from model species provide incomplete information regarding...
  • Identifier: E-ISSN: 19326203 ; DOI: 10.1371/journal.pone.0040861

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