Systematic status of Campydora Cobb, 1920 (Nematoda: Campydorina)

Peter G. Mullin, Timothy S. Harris, Thomas O. Powers

Research output: Contribution to journalReview article

13 Citations (Scopus)

Abstract

The systematic position of Campydora Cobb, 1920, which possesses many unique morphological features, especially in pharyngeal structure and stomatal armature, has long been a matter of uncertainty with the 'position of the Campydorinae' (containing only Campydora) being questionable. A review of the morphology of C. demonstrans, the only nominal species of Campydora concluded that the species warranted placement as the sole member of a monotypic suborder, Campydorina, in the order Dorylaimida. Others placed Campydorina in the order Enoplida. We conducted phylogenetic analyses, using 18s small subunit ribosomal DNA sequences generated from a number of taxa in the subclasses Enoplia and Dorylaimia, to evaluate these competing hypotheses. Although precise taxonomic placement of the genus Campydora and the identity of its closest living relatives is in need of further investigation, our analyses, under maximum parsimony, distance, and maximum likelihood criteria, unambiguously indicate that Campydora shares a common, more recent, ancestry with genera such as Alaimus, Pontonema, Tripyla and Ironus (Enoplida), rather than with any members of Dorylaimida, Mononchida or Triplonchida.

Original languageEnglish (US)
Pages (from-to)699-711
Number of pages13
JournalNematology
Volume5
Issue number5
DOIs
StatePublished - Dec 1 2003

Fingerprint

Nematoda
ancestry
ribosomal DNA
uncertainty
phylogenetics
nucleotide sequences
DNA
phylogeny
Dorylaimida
Enoplida
Triplonchida
Dorylaimia
Enoplea
need

Keywords

  • 18s SSU rDNA
  • Campydora demonstrans
  • Campydorina
  • Dorylaimida
  • Enoplida
  • Phylogeny

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science

Cite this

Systematic status of Campydora Cobb, 1920 (Nematoda : Campydorina). / Mullin, Peter G.; Harris, Timothy S.; Powers, Thomas O.

In: Nematology, Vol. 5, No. 5, 01.12.2003, p. 699-711.

Research output: Contribution to journalReview article

Mullin, Peter G. ; Harris, Timothy S. ; Powers, Thomas O. / Systematic status of Campydora Cobb, 1920 (Nematoda : Campydorina). In: Nematology. 2003 ; Vol. 5, No. 5. pp. 699-711.
@article{b35817ec4d2c4481881eb72e3361d806,
title = "Systematic status of Campydora Cobb, 1920 (Nematoda: Campydorina)",
abstract = "The systematic position of Campydora Cobb, 1920, which possesses many unique morphological features, especially in pharyngeal structure and stomatal armature, has long been a matter of uncertainty with the 'position of the Campydorinae' (containing only Campydora) being questionable. A review of the morphology of C. demonstrans, the only nominal species of Campydora concluded that the species warranted placement as the sole member of a monotypic suborder, Campydorina, in the order Dorylaimida. Others placed Campydorina in the order Enoplida. We conducted phylogenetic analyses, using 18s small subunit ribosomal DNA sequences generated from a number of taxa in the subclasses Enoplia and Dorylaimia, to evaluate these competing hypotheses. Although precise taxonomic placement of the genus Campydora and the identity of its closest living relatives is in need of further investigation, our analyses, under maximum parsimony, distance, and maximum likelihood criteria, unambiguously indicate that Campydora shares a common, more recent, ancestry with genera such as Alaimus, Pontonema, Tripyla and Ironus (Enoplida), rather than with any members of Dorylaimida, Mononchida or Triplonchida.",
keywords = "18s SSU rDNA, Campydora demonstrans, Campydorina, Dorylaimida, Enoplida, Phylogeny",
author = "Mullin, {Peter G.} and Harris, {Timothy S.} and Powers, {Thomas O.}",
year = "2003",
month = "12",
day = "1",
doi = "10.1163/156854103322746878",
language = "English (US)",
volume = "5",
pages = "699--711",
journal = "Nematology",
issn = "1388-5545",
publisher = "Brill",
number = "5",

}

TY - JOUR

T1 - Systematic status of Campydora Cobb, 1920 (Nematoda

T2 - Campydorina)

AU - Mullin, Peter G.

AU - Harris, Timothy S.

AU - Powers, Thomas O.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - The systematic position of Campydora Cobb, 1920, which possesses many unique morphological features, especially in pharyngeal structure and stomatal armature, has long been a matter of uncertainty with the 'position of the Campydorinae' (containing only Campydora) being questionable. A review of the morphology of C. demonstrans, the only nominal species of Campydora concluded that the species warranted placement as the sole member of a monotypic suborder, Campydorina, in the order Dorylaimida. Others placed Campydorina in the order Enoplida. We conducted phylogenetic analyses, using 18s small subunit ribosomal DNA sequences generated from a number of taxa in the subclasses Enoplia and Dorylaimia, to evaluate these competing hypotheses. Although precise taxonomic placement of the genus Campydora and the identity of its closest living relatives is in need of further investigation, our analyses, under maximum parsimony, distance, and maximum likelihood criteria, unambiguously indicate that Campydora shares a common, more recent, ancestry with genera such as Alaimus, Pontonema, Tripyla and Ironus (Enoplida), rather than with any members of Dorylaimida, Mononchida or Triplonchida.

AB - The systematic position of Campydora Cobb, 1920, which possesses many unique morphological features, especially in pharyngeal structure and stomatal armature, has long been a matter of uncertainty with the 'position of the Campydorinae' (containing only Campydora) being questionable. A review of the morphology of C. demonstrans, the only nominal species of Campydora concluded that the species warranted placement as the sole member of a monotypic suborder, Campydorina, in the order Dorylaimida. Others placed Campydorina in the order Enoplida. We conducted phylogenetic analyses, using 18s small subunit ribosomal DNA sequences generated from a number of taxa in the subclasses Enoplia and Dorylaimia, to evaluate these competing hypotheses. Although precise taxonomic placement of the genus Campydora and the identity of its closest living relatives is in need of further investigation, our analyses, under maximum parsimony, distance, and maximum likelihood criteria, unambiguously indicate that Campydora shares a common, more recent, ancestry with genera such as Alaimus, Pontonema, Tripyla and Ironus (Enoplida), rather than with any members of Dorylaimida, Mononchida or Triplonchida.

KW - 18s SSU rDNA

KW - Campydora demonstrans

KW - Campydorina

KW - Dorylaimida

KW - Enoplida

KW - Phylogeny

UR - http://www.scopus.com/inward/record.url?scp=1542349915&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1542349915&partnerID=8YFLogxK

U2 - 10.1163/156854103322746878

DO - 10.1163/156854103322746878

M3 - Review article

AN - SCOPUS:1542349915

VL - 5

SP - 699

EP - 711

JO - Nematology

JF - Nematology

SN - 1388-5545

IS - 5

ER -