J 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.

Základní údaje

Originální název

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

Autoři

MESSU MANDENG, Françoise D. (120 Kamerun), Charles F. BILONG BILONG (120 Kamerun), Antoine PARISELLE (250 Francie), Maarten Pieterjan VANHOVE (56 Belgie, garant, domácí), Arnold R. BITJA NYOM (120 Kamerun) a Jean-François AGNÈSE (250 Francie)

Vydání

PARASITES & VECTORS, LONDON, BIOMED CENTRAL LTD, 2015, 1756-3305

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.234

Kód RIV

RIV/00216224:14310/15:00088660

Organizační jednotka

Přírodovědecká fakulta

DOI

UT WoS

000369842900001

Klíčová slova anglicky

Phylogeny; Lateral transfer; Cichlidogyrus amieti; Aphyosemion; Nothobranchiidae; Cichlidae; Cameroon; Africa

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 7. 3. 2018 13:15, Mgr. Lucie Jarošová, DiS.

Anotace

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.

Návaznosti

GBP505/12/G112, projekt VaV
Název: ECIP - Evropské centrum ichtyoparazitologie
Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie