• Home
  1. Home
  2. Comparison of ribosomal DNA sequences of Lamellodiscus spp. (Monogenea, Diplectanidae) parasitising Pagellus (Sparidae, Teleostei) in the North Mediterranean Sea: species divergence and coevolutionary interactions
Scientific article
English

Comparison of ribosomal DNA sequences of Lamellodiscus spp. (Monogenea, Diplectanidae) parasitising Pagellus (Sparidae, Teleostei) in the North Mediterranean Sea: species divergence and coevolutionary interactions

Contributors

Desdevises, Yves; Jovelin, Richard; Jousson, Olivier; Morand, Serge

Published in

International Journal for Parasitology, vol. 30, no. 6, p. 741-746

Publication date

2000

Abstract

We sequenced DNA fragments from four monogenean species of the genus Lamellodiscus and their three fish host species from the genus Pagellus in the North Mediterranean Sea, in order to estimate the molecular divergence and the coevolutionary interactions in this association. By comparing the ITS1 sequences of the parasites, we assessed their level of interspecific differences and tested the phylogenetic status of Lamellodiscus virgula and Lamellodiscus obeliae, formerly described as two different species. Moreover, we wanted to know if closely related parasites used closely related hosts, to investigate the coevolutionary interactions in this complex. Phylogenetic relationships among Lamellodiscus species were estimated with partial 18S ribosomal DNA sequences while mitochondrial cytochrome-b DNA sequences were used for their fish hosts. The ITS1 sequences appear to be highly variable among Lamellodiscus species, except L.virgula and L.obeliae, suggesting an old divergence time or a rapid molecular evolution within this genus. This fish-parasite association seems to exhibit coevolutionary interactions. L.virgula and L.obeliae are proposed to be a single species on the basis of their almost identical ITS1 sequences.

Keywords

  • 18S rDNA
  • Coevolution
  • Cytochrome-b DNA
  • ITS1
  • Lamellodiscus
  • Pagellus
  • Species status

UNIGE affiliation entities

Citation (ISO format)

DESDEVISES, Yves et al. Comparison of ribosomal DNA sequences of Lamellodiscus spp. (Monogenea, Diplectanidae) parasitising Pagellus (Sparidae, Teleostei) in the North Mediterranean Sea: species divergence and coevolutionary interactions. In: International Journal for Parasitology, 2000, vol. 30, n° 6, p. 741–746. doi: 10.1016/s0020-7519(00)00051-5

Main files (1)

Article (Published version)

Identifiers

Journal ISSN

0020-7519
491views
1downloads

Technical informations

Creation

30/06/2016 15:39:00

First validation

30/06/2016 15:39:00

Update

15/03/2023 00:32:55

Status update

15/03/2023 00:32:55

Last indexation

31/10/2024 03:57:04
All rights reserved by Archive ouverte UNIGE and the University of Geneva
OpenAIRE Indexed & Validated