Morphometric and genetic evidence for cryptic diversity of Gyrodactylus nebulosus (Monogenea) in non-native European populations of Ameiurus nebulosus and A. melas

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F20%3A00532900" target="_blank" >RIV/68081766:_____/20:00532900 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1017/S0031182020001195" target="_blank" >http://dx.doi.org/10.1017/S0031182020001195</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0031182020001195" target="_blank" >10.1017/S0031182020001195</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Morphometric and genetic evidence for cryptic diversity of Gyrodactylus nebulosus (Monogenea) in non-native European populations of Ameiurus nebulosus and A. melas

Popis výsledku v původním jazyce

Gyrodactylid parasites were observed on non-native populations of North-Amercian freshwater catfishes, Ameiurus nebulosus and Ameiurus melas (Siluriformes: Ictaluridae), at several sites in the Elbe River basin, Czech Republic, Europe. Using a combination of morphological and genetic analyses, the parasites infecting A. nebulosus were determined to be Gyrodactylus nebulosus, a North American parasite co-introduced to Europe along with its Ameiurus fish hosts. Subtle morphometrical differences, as well as seasonal variations, were observed among parasites collected from A. nebulosus and A. melas. The host-related variation was further supported through genetic analysis of the partial 18S rDNA, ITS1-5.8S-ITS2 and COI, showing 0.2, 3.0 and 4.8 % divergence, respectively. Consistent genetic differences indicated there were two distinct genotypes. Subtle morphological differences associated with shape of sickle toe, anchor root and ventral bar membrane, according to host species, also supported the description of a new cryptic species, Gyrodactylus melas n. sp., infecting A. melas. Multivariate morphometrical analysis of haptoral hard parts showed significant differences between the anchor lengths between G. nebulosus and G. melas n. sp. However, the measurements of the haptoral hard structures partially overlapped between species, limiting the usage of these parameters for species delineation.

Název v anglickém jazyce

Morphometric and genetic evidence for cryptic diversity of Gyrodactylus nebulosus (Monogenea) in non-native European populations of Ameiurus nebulosus and A. melas

Popis výsledku anglicky

Gyrodactylid parasites were observed on non-native populations of North-Amercian freshwater catfishes, Ameiurus nebulosus and Ameiurus melas (Siluriformes: Ictaluridae), at several sites in the Elbe River basin, Czech Republic, Europe. Using a combination of morphological and genetic analyses, the parasites infecting A. nebulosus were determined to be Gyrodactylus nebulosus, a North American parasite co-introduced to Europe along with its Ameiurus fish hosts. Subtle morphometrical differences, as well as seasonal variations, were observed among parasites collected from A. nebulosus and A. melas. The host-related variation was further supported through genetic analysis of the partial 18S rDNA, ITS1-5.8S-ITS2 and COI, showing 0.2, 3.0 and 4.8 % divergence, respectively. Consistent genetic differences indicated there were two distinct genotypes. Subtle morphological differences associated with shape of sickle toe, anchor root and ventral bar membrane, according to host species, also supported the description of a new cryptic species, Gyrodactylus melas n. sp., infecting A. melas. Multivariate morphometrical analysis of haptoral hard parts showed significant differences between the anchor lengths between G. nebulosus and G. melas n. sp. However, the measurements of the haptoral hard structures partially overlapped between species, limiting the usage of these parameters for species delineation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Parasitology

ISSN

0031-1820

e-ISSN

—

Svazek periodika

147

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1700-1711

Kód UT WoS článku

000594718800010

EID výsledku v databázi Scopus

2-s2.0-85091838019