Gyrodactylus spp. on African Clarias gariepinus: parasites who
preferred co-speciation instead of host switching.

a 2015

Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching.

PŘIKRYLOVÁ, Iva, Maxwel BARSON, Wynand MALHERBE, Milan GELNAR, Wilmien J. LUUS-POWELL et. al.

Basic information

Original name

Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching.

Authors

PŘIKRYLOVÁ, Iva (203 Czech Republic, guarantor, belonging to the institution), Maxwel BARSON (716 Zimbabwe), Wynand MALHERBE (710 South Africa), Milan GELNAR (203 Czech Republic) and Wilmien J. LUUS-POWELL (710 South Africa)

Edition

9th International Symposium on Fish Parasites, Valencia, Spain, 2015

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

Spain

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/15:00081590

Organization unit

Faculty of Science

Keywords in English

Gyrodactylus; Clarias gariepinus; morphology; ITS rDNA; South Africa; Zimbabwe

Změněno: 17/2/2016 14:52, Mgr. Iva Přikrylová, Ph.D.

Abstract

V originále

Sharptooth catfish, Clarias gariepinus (Burchell, 1822), is widely distributed in Africa with the exception of Maghreb, Upper Guinea and Cape provinces of South Africa. On the African continent, C. gariepinus is currently known to be a host to seven species of the genus Gyrodactylus von Nordmann, 1832. During the period August 2011 – November 2014, several localities were sampled to establish gyrodactylid parasites diversity in the southern African region. In total 31 specimens of C. gariepinus were collected on several spots in South Africa (Flag-Boshielo Dam, Loskop Dam, Sand and Barota River in Limpopo Province; Mooi River and Barberspan Dam, North-West Prov.) and Zimbabwe (Zambezi River and Lake Kariba). The Gyrodactylus prevalence was noted to be 45%. Species identification based on opisthaptoral hard parts morphometry and nuclear rDNA ITS sequences identified the presence of 10 different Gyrodactylus species, of which four are currently known, i.e. G. alekosi Přikrylová, Blažek & Vanhove, 2012; G. gelnari Přikrylová, Blažek & Vanhove, 2012; G. rysavyi Ergens, 1973 and G. transvaalensis Prudhoe & Hussey, 1977. Present finding reveals unexpected Gyrodactylus species diversity and their wide distribution across different regions. Phylogenetic analyses based on the ITS rDNA sequences assisted in revealing interspecific relationships. Analysis of 18S rDNA revealed identical sequences for four species with distant geographical origin and which differ substantially in morpho-metrical characters. The observed species richness among one host seems to be a signal that co-evolution with intensive diversification occurred in this host-parasite system.

Links

GBP505/12/G112, research and development project

Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation

Citovat

PŘIKRYLOVÁ, Iva, Maxwel BARSON, Wynand MALHERBE, Milan GELNAR and Wilmien J. LUUS-POWELL. Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching. In 9th International Symposium on Fish Parasites, Valencia, Spain. 2015.

@proceedings{1336094,
   author = {Přikrylová, Iva and Barson, Maxwel and Malherbe, Wynand and Gelnar, Milan and LuusandPowell, Wilmien J.},
   booktitle = {9th International Symposium on Fish Parasites, Valencia, Spain},
   keywords = {Gyrodactylus; Clarias gariepinus; morphology; ITS rDNA; South Africa; Zimbabwe},
   language = {eng},
   title = {Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching.},
   year = {2015}
}

TY  - CONF
ID  - 1336094
AU  - Přikrylová, Iva - Barson, Maxwel - Malherbe, Wynand - Gelnar, Milan - Luus-Powell, Wilmien J.
PY  - 2015
TI  - Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching.
KW  - Gyrodactylus
KW  - Clarias gariepinus
KW  - morphology
KW  - ITS rDNA
KW  - South Africa
KW  - Zimbabwe
N2  - Sharptooth catfish, Clarias gariepinus (Burchell, 1822), is widely distributed in Africa with the exception of Maghreb, Upper Guinea and Cape provinces of South Africa. On the African continent, C. gariepinus is currently known to be a host to seven species of the genus Gyrodactylus von Nordmann, 1832. During the period August 2011 – November 2014, several localities were sampled to establish gyrodactylid parasites diversity in the southern African region. In total 31 specimens of C. gariepinus were collected on several spots in South Africa (Flag-Boshielo Dam, Loskop Dam, Sand and Barota River in Limpopo Province; Mooi River and Barberspan Dam, North-West Prov.) and Zimbabwe (Zambezi River and Lake Kariba). The Gyrodactylus prevalence was noted to be 45%. Species identification based on opisthaptoral hard parts morphometry and nuclear rDNA ITS sequences identified the presence of 10 different Gyrodactylus species, of which four are currently known, i.e. G. alekosi Přikrylová, Blažek & Vanhove, 2012; G. gelnari Přikrylová, Blažek & Vanhove, 2012; G. rysavyi Ergens, 1973 and G. transvaalensis Prudhoe & Hussey, 1977. Present finding reveals unexpected Gyrodactylus species diversity and their wide distribution across different regions. Phylogenetic analyses based on the ITS rDNA sequences assisted in revealing interspecific relationships. Analysis of 18S rDNA revealed identical sequences for four species with distant geographical origin and which differ substantially in morpho-metrical characters. The observed species richness among one host seems to be a signal that co-evolution with intensive diversification occurred in this host-parasite system.
ER  -

PŘIKRYLOVÁ, Iva, Maxwel BARSON, Wynand MALHERBE, Milan GELNAR and Wilmien J. LUUS-POWELL. Gyrodactylus spp. on African Clarias gariepinus: parasites who preferred co-speciation instead of host switching. In \textit{9th International Symposium on Fish Parasites, Valencia, Spain}. 2015.

Detailed Information on Publication Record