a 2015

A PHYLOGENETIC PERSPECTIVE ON SPECIES DIVERSITY: CICHLIDOGYRUS (DACTYLOGYRIDAE) PARASITIZING LAKE TANGANYIKA CICHLID TRIBES

RAHMOUNI, Chahrazed, Maarten Pieterjan VANHOVE, Eliška JIROUNKOVÁ, Monika MENDLOVÁ, Andrea VETEŠNÍKOVÁ ŠIMKOVÁ et. al.

Basic information

Original name

A PHYLOGENETIC PERSPECTIVE ON SPECIES DIVERSITY: CICHLIDOGYRUS (DACTYLOGYRIDAE) PARASITIZING LAKE TANGANYIKA CICHLID TRIBES

Authors

RAHMOUNI, Chahrazed (12 Algeria, belonging to the institution), Maarten Pieterjan VANHOVE (56 Belgium, belonging to the institution), Eliška JIROUNKOVÁ (203 Czech Republic, belonging to the institution), Monika MENDLOVÁ (203 Czech Republic, belonging to the institution) and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

4th Workshop of European Centre of IchtyoParasitology, 2015

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/15:00091186

Organization unit

Faculty of Science

Keywords in English

Monogenea; Cichlids; Tanganyika; Cichlidogyrus

Abstract

V originále

Lake Tanganyika, the deepest and oldest lake in Africa, harbors the most genetically, morphologically and ecologically diverse cichlid assemblages of the African Great Lakes. Its mostly endemic cichlids are considered as model to study adaptive radiation and rapid diversification. Because of the apparently high host specificity of gill monogeneans, there is an increasing interest to use phylogenetic analysis based on the molecular data of these parasites in order to study their host’s diversity, evolution and host-parasite interactions. Based on our knowledge on freshwater fish monogeneans, we can confirm that the Lake Tanganyika cichlid fish harbor more parasites than cichlid species as suggested in the past. Currently, African cichlids can host five different genera of dactylogyrideans, Cichlidogyrus being the most diverse with more than 95 species recorded from more than 70 cichlid hosts. Members of Cichlidogyrus are gill ectoparasites. Species of Cichlidogyrus are identified morphologically by studying the sclerotized structures of haptor and male copulatory organ in addition with molecular data. The goal of this study is to investigate the phylogenetic affinities between the Cichlidogyrus fauna of different Tanganyika cichlid tribes employing different molecular markers (28S rDNA, 18S rDNA, ITS-1 and COX1). Monogenean species are described from Cyprichromis microlepidotus and Eretmodus marksmithi, the first representatives of cyprichromine and eretmodine hosts to be studied for monogeneans. Based on preliminary results, we suggest that phylogenetic relationships among Cichlidogyrus parasitizing the different Lake Tanganyika cichlid tribes may help us to elucidate the historic and ecological associations between cichlid tribes and to determine the origin of these Lake Tanganyika cichlid monogeneans