Phylum-wide analysis of SSU rDNA reveals deep phylogenetic relationships among nematodes and accelerated evolution toward crown Clades.

  title={Phylum-wide analysis of SSU rDNA reveals deep phylogenetic relationships among nematodes and accelerated evolution toward crown Clades.},
  author={Martijn H.M. Holterman and Andr{\'e} W. G. van der Wurff and Sven J.J. van den Elsen and Hanny van Megen and Tom Bongers and Oleksandr Holovachov and Jaap A. Bakker and Johannes Helder},
  journal={Molecular biology and evolution},
  volume={23 9},
Inference of evolutionary relationships between nematodes is severely hampered by their conserved morphology, the high frequency of homoplasy, and the scarcity of phylum-wide molecular data. To study the origin of nematode radiation and to unravel the phylogenetic relationships between distantly related species, 339 nearly full-length small-subunit rDNA sequences were analyzed from a diverse range of nematodes. Bayesian inference revealed a backbone comprising 12 consecutive dichotomies that… 

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