Detailed Information on Publication Record
2015
A phylogeny of Cichlidogyrus spp. (Monogenea, Dactylogyridea) clarifies a host-switch between fish families and reveals an adaptive component to attachment organ morphology of this parasite genus
MESSU MANDENG, Françoise D., Charles F. BILONG BILONG, Antoine PARISELLE, Maarten Pieterjan VANHOVE, Arnold R. BITJA NYOM et. al.Basic information
Original name
A phylogeny of Cichlidogyrus spp. (Monogenea, Dactylogyridea) clarifies a host-switch between fish families and reveals an adaptive component to attachment organ morphology of this parasite genus
Authors
MESSU MANDENG, Françoise D. (120 Cameroon), Charles F. BILONG BILONG (120 Cameroon), Antoine PARISELLE (250 France), Maarten Pieterjan VANHOVE (56 Belgium, guarantor, belonging to the institution), Arnold R. BITJA NYOM (120 Cameroon) and Jean-François AGNÈSE (250 France)
Edition
PARASITES & VECTORS, LONDON, BIOMED CENTRAL LTD, 2015, 1756-3305
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.234
RIV identification code
RIV/00216224:14310/15:00088660
Organization unit
Faculty of Science
UT WoS
000369842900001
Keywords in English
Phylogeny; Lateral transfer; Cichlidogyrus amieti; Aphyosemion; Nothobranchiidae; Cichlidae; Cameroon; Africa
Tags
International impact, Reviewed
Změněno: 7/3/2018 13:15, Mgr. Lucie Jarošová, DiS.
Abstract
V originále
Background: Parasite switches to new host species are of fundamental scientific interest and may be considered an important speciation mechanism. For numerous monogenean fish parasites, infecting different hosts is associated with morphological adaptations, in particular of the attachment organ (haptor). However, haptoral morphology in Cichlidogyrus spp. (Monogenea, Dactylogyridea), parasites of African cichlids, has been mainly linked to phylogenetic rather than to host constraints. Here we determined the position of Cichlidogyrus amieti, a parasite of species of Aphyosemion (Cyprinodontiformes, Nothobranchiidae) in the phylogeny of its congeners in order to infer its origin and assess the morphological changes associated with host-switching events. Methods: The DNA of specimens of C. amieti isolated from Aphyosemion cameronense in Cameroon was sequenced and analyzed together with that of Cichlidogyrus spp. from cichlid hosts. In order to highlight the influence of the lateral transfer of C. amieti on the haptoral sclerotised parts we performed a Principal Component Analysis (PCA) to compare the attachment organ structure of C. amieti to that of congeners infecting cichlids. Results: Cichlidogyrus amieti was found to be nested within a strongly supported clade of species described from Hemichromis spp. (i.e. C. longicirrus and C. dracolemma). This clade is located at a derived position of the tree, suggesting that C. amieti transferred from cichlids to Cyprinodontiformes and not inversely. The morphological similarity between features of their copulatory organs suggested that C. amieti shares a recent ancestor with C. dracolemma. It also indicates that in this case, these organs do not seem subjected to strong divergent selection pressure. On the other hand, there are substantial differences in haptoral morphology between C. amieti and all of its closely related congeners described from Hemichromis spp.. Conclusions: Our study provides new evidence supporting the hypothesis of the adaptive nature of haptor morphology. It demonstrates this adaptive component for the first time within Cichlidogyrus, the attachment organs of which were usually considered to be mainly phylogenetically constrained.
Links
| GBP505/12/G112, research and development project |
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