Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

Main Menu

· Home
· Contacts
· Data Systems
· Documents
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference


Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

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

Integrative taxonomy in two free-living nematode species complexes
Fonseca, G.; Derycke, S.; Moens, T. (2008). Integrative taxonomy in two free-living nematode species complexes. Biol. J. Linn. Soc. 94(4): 737-753.
In: Biological Journal of the Linnean Society. Academic Press: London; New York. ISSN 0024-4066; e-ISSN 1095-8312
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 145830 [ OMA ]

    Biology > Organism morphology > Animal morphology
    Classification > Taxonomy
    Halomonhystera disjuncta (Bastian, 1865) Andrassy, 2006 [WoRMS]; Nematoda [WoRMS]; Rhabditis (Pellioditis) marina (Bastian, 1865) Andrassy, 1984 [WoRMS]
Author keywords
    COI; D2D3; ITS; marine nematodes; morphology

Authors  Top 
  • Fonseca, G.
  • Derycke, S., more
  • Moens, T., more

    Integrative taxonomy considers species boundaries from multiple, complementary perspectives, with the main objective being to compare the observed data against the predictions of the methodologies used. In the present study we used three methods for delineating species boundaries within the cosmopolitan nematode species Rhabditis (Pellioditis) marina and Halomonhystera disjuncta. First, phylogenetic relationships among molecular sequences from the mitochondrial cytochrome oxidase c subunit 1 gene (COI), and from two nuclear regions, internal transcribed spacer (ITS) and D2D3, were analysed. Subsequently, multivariate morphometric analysis was used to investigate whether concordant molecular lineages were also morphologically distinct. When morphological differences were found, typological taxonomy was performed to identify fixed or non-overlapping characters between lineages. Interbreeding experiments were conducted between the two closest related lineages of R. (P.) marina to investigate potential reproductive isolation. This integrative approach confirmed the presence of several species within each nominal species: molecular lineages were concordant across two independent loci (COI and ITS), and were characterized by significant morphological divergence. Most lineages were also detectable in the D2D3 region, but were less resolved. The two lineages investigated in our study did not produce offspring. Our results highlight that classical taxonomy grossly underestimates species diversity within the phylum Nematoda.

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

If any information here appears to be incorrect, please contact us
Back to Register of Resources
Quick links


Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)

Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin


Geographic System



Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact