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Phylogeny and systematics of deep-sea sea pens (Anthozoa: Octocorallia: Pennatulacea)
Dolan, E.; Tyler, P.A.; Yesson, C.; Rogers, A.D. (2013). Phylogeny and systematics of deep-sea sea pens (Anthozoa: Octocorallia: Pennatulacea). Mol. Phylogenet. Evol. 69(3): 610-618. http://dx.doi.org/10.1016/j.ympev.2013.07.018
In: Molecular Phylogenetics and Evolution. Elsevier: Orlando, FL. ISSN 1055-7903; e-ISSN 1095-9513
Peer reviewed article  
Available in  Authors 
    Vlaams Instituut voor de Zee: Open Marine Archive 251249 [ download pdf ]
Keywords
    Phylogenetics
    Pennatulacea [WoRMS]
    Marine/Coastal
Author keywords
    Mitochondrial protein-coding genes; Molecular systematics; mtMutS; ND2; Pennatulaceans
Authors  Top 
  • Dolan, E.
  • Tyler, P.A.
  • Yesson, C.
  • Rogers, A.D.
Abstract
    Molecular methods have been used for the first time to determine the phylogeny of families, genera and species within the Pennatulacea (sea pens). Variation in ND2 and mtMutS mitochondrial protein-coding genes proved adequate to resolve phylogenetic relationships among pennatulacean families. The gene mtMutS is more variable than ND2 and differentiates all genera, and many pennatulacean species. A molecular phylogeny based on a Bayesian analysis reveals that suborder Sessiliflorae is paraphyletic and Subselliflorae is polyphyletic. Many families of pennatulaceans do not represent monophyletic groups including Umbellulidae, Pteroeididae, and Kophobelemnidae. The high frequency of morphological homoplasy in pennatulaceans has led to many misinterpretations in the systematics of the group. The traditional classification scheme for pennatulaceans requires revision.
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