Parasite hybridization in African Macrogyrodactylus spp. (Monogenea:Gyrodactylidae) signal historical host distribution

BARSON, Maxwell, Iva PŘIKRYLOVÁ, Maarten VANHOVE and Tine HUYSE. Parasite hybridization in African Macrogyrodactylus spp. (Monogenea:Gyrodactylidae) signal historical host distribution. In 18th Helminthologicla Days. 2010. ISBN 978-80-210-5244-4.

Basic information

• Original name: Parasite hybridization in African Macrogyrodactylus spp. (Monogenea:Gyrodactylidae) signal historical host distribution
• Name in Czech: Hybridizace u afrických parazitu Macrogyrodaclus spp. (Monogenea:Gyrodactylidae) jako signal historicke rozšíření hostitel
• Authors: BARSON, Maxwell (716 Zimbabwe, guarantor), Iva PŘIKRYLOVÁ (203 Czech Republic, belonging to the institution), Maarten VANHOVE (56 Belgium) and Tine HUYSE (56 Belgium).
• Edition: 18th Helminthologicla Days, 2010.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: Genetics and molecular biology
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/10:00055440
• Organization unit: Faculty of Science
• ISBN: 978-80-210-5244-4
• Keywords in English: Macrogyrodactylus; Kenya; Senegal; Zimbabwe; ITS; cox1
• Tags: AKb, rivok
• Tags: International impact

Abstract

Macrogyrodactylus spp. from the gills of Clarias gariepinus in Zimbabwe and Kenya, and C. anguillaris in Senegal were identified using haptoral sclerite morphology and by sequencing the nuclear ribosomal DNA internal transcribed spacers (ITS) 1 and 2, partial 18S and the complete 5.8S rRNA gene. A molecular phylogeny was constructed using all sequenced Macrogyrodactylus species to date. Based on morphology, Macrogyrodactylus congolensis, M. heterobranchii, M. clarii, and M. karibae were identified, with one specimen from Zimbabwe displaying morphological features that were intermediate between M. heterobranchii and M. clarii. In the intermediate form, the partial 18S and ITS1 sequence was identical to that of M. heterobranchii while the remaining ITS1 and complete ITS2 region was almost identical to M. clarii as was the partial cox1 fragment, thus strongly suggesting a hybrid origin. At present, M. heterobranchii and M. clarii do not co-occur in southern Zimbabwe since the distribution range of their respective host species do not overlap. This hybridization event is therefore proof of historical sympatry of both fish species.

Links

• LC522, research and development project: Name: ICHTYOPARAZITOLOGIE - centrum základního výzkumu

Investor: Ministry of Education, Youth and Sports of the CR, Ichtyoparazitology - the center of basic research

• MSM0021622416, plan (intention): Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time