IMIS | Lifewatch regional portal

You are here


[ report an error in this record ]basket (0): add | show Print this page

A time-calibrated multi-gene phylogeny of the diatom genus Pinnularia
Souffreau, C.; Verbruggen, H.; Wolfe, A. P.; Vanormelingen, P.; Siver, P. A.; Cox, E. J.; Mann, D. G.; Van de Vijver, B.; Sabbe, K.; Vyverman, W. (2011). A time-calibrated multi-gene phylogeny of the diatom genus Pinnularia. Mol. Phylogenet. Evol. 61(3): 866-879.
In: Molecular Phylogenetics and Evolution. Elsevier: Orlando, FL. ISSN 1055-7903; e-ISSN 1095-9513, more
Peer reviewed article  

Available in  Authors 

    Bacillariophyceae [WoRMS]; Pinnularia C.G. Ehrenberg, 1843 [WoRMS]
    Fresh water
Author keywords
    Molecular phylogenetics; Relaxed molecular clock; Fossil record; Raphid diatoms; Pinnularia; Bacillariophyceae; Eocene

Authors  Top 
  • Souffreau, C., more
  • Verbruggen, H., more
  • Wolfe, A. P.
  • Vanormelingen, P., more
  • Siver, P. A.
  • Cox, E. J., more
  • Mann, D. G., more
  • Van de Vijver, B., more
  • Sabbe, K., more
  • Vyverman, W., more

    Pinnularia is an ecologically important and species-rich genus of freshwater diatoms (Bacillariophyceae) showing considerable variation in frustule morphology. Interspecific evolutionary relationships were inferred for 36 Pinnularia taxa using a five-locus dataset. A range of fossil taxa, including newly discovered Middle Eocene forms of Pinnularia, was used to calibrate a relaxed molecular clock analysis and investigate temporal aspects of the genus’ diversification. The multi-gene approach resulted in a well resolved phylogeny of three major clades and several subclades that were frequently, but not universally, delimited by valve morphology. The genus Caloneis was not recovered as monophyletic, confirming that, as currently delimited, this genus is not evolutionarily meaningful and should be merged with Pinnularia. The Pinnularia–Caloneis complex is estimated to have diverged between the Upper Cretaceous and the early Eocene, implying a ghost range of at least 10 million year (Ma) in the fossil record.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors