Papers

Peer-reviewed Open access
2008

Actus salvadoricus Baqri and Jairajpuri (Mononchida: Mylonchulidae) from Japan with comment on the phylogenetic position of the genus Actus based on 18S rDNA sequences

Nematological Research (Japanese Journal of Nematology)
  • Olia Majid
  • ,
  • Ahmad Wasim
  • ,
  • Araki Masaaki
  • ,
  • Minaka Nobuhiro
  • ,
  • Oba Hirosuke
  • ,
  • Okada Hiroaki

Volume
38
Number
2
First page
57
Last page
69
Language
English
Publishing type
DOI
10.3725/jjn.38.57
Publisher
Japanese Nematological Society

The nematode genus Actus belonging to the order Mononchida, an important group of predatory nematodes, is rare in the world. Actus salvadoricus Baqri and Jairajpuri, 1974, which had been described from El Salvador, were found from subtropical forest in the northern part of Okinawa Island, Japan. Its morphological observation is made herein and its phylogenetic position is elucidated based on 18S rDNA sequence. A. salvadoricus collected from Okinawa is characterized by having its buccal cavity with a moderately developed dorsal tooth, vertical subventral plates with a single row of denticles arranged as 3:3 or 3:4 or 2:4 on two plates, distinct excretory pore, elongate-conoid ventrally arcuate tail, with tandem caudal glands and terminal spinneret. Based on the nearly complete 18S rDNA sequence data already known and revealed in this work, phylogenetic trees of Mononchina were constructed using parsimony and maximum likelihood algorithms. The results show that the genus Actus forms a sister group with the species of the genus Mylonchulus in the suborder Mononchina, showing the valid status of its taxonomic group.

Link information
DOI
https://doi.org/10.3725/jjn.38.57
CiNii Articles
http://ci.nii.ac.jp/naid/130004510846
CiNii Books
http://ci.nii.ac.jp/ncid/AA11995220
URL
https://agriknowledge.affrc.go.jp/RN/2010770714 Open access
ID information
  • DOI : 10.3725/jjn.38.57
  • ISSN : 0919-6765
  • CiNii Articles ID : 130004510846
  • CiNii Books ID : AA11995220
  • identifiers.cinii_nr_id : 9000002669810

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