Gyrodactylus crysoleucas

Rahmouni, Chahrazed, Seifertová, Mária, Bean, Megan G. & Šimková, Andrea, 2024, Intraspecific variation in Gyrodactylus mediotorus and G. crysoleucas (Gyrodactylidae) from Nearctic shiners (Leuciscidae): evidence for ongoing speciation, host-switching, and parasite translocation, Parasite (Paris, France) 31 (29), pp. 1-14 : 7

publication ID

https://doi.org/ 10.1051/parasite/2024023

publication LSID

lsid:zoobank.org:pub:A2F025CD-7379-4E84-921B-AC565CD1EAC8

DOI

https://doi.org/10.5281/zenodo.12751542

persistent identifier

https://treatment.plazi.org/id/A4378781-E94F-FFB7-D400-F993FE59FD52

treatment provided by

Felipe

scientific name

Gyrodactylus crysoleucas
status

 

Gyrodactylus crysoleucas View in CoL

Two fragments, the first covering the 18S rDNA (442 bp) and the second covering the ITS regions (1,207 bp), were successfully sequenced for two gyrodactylid specimens from Texas, and the newly obtained sequences were found to be identical. nBLAST search indicated G. crysoleucas KT 149283 [ 55] from the farmed golden shiner N. crysoleucas in Minnesota ( USA) as an identical match to our specimens according to sequences of 18S rDNA (100% similarity, 100% coverage), while G. crysoleucas KT 149287 [ 55] was recovered as the closest match to the specimens studied herein according to the sequences of the ITS regions (99.17% similarity, 99% coverage, p -distance = 0.3%; 3 bp). In accordance with the morphological identification, our specimens were genetically assigned to G. crysoleucas following the delimitation by Ziȩtara and Lumme [ 112] and the recent findings of Rahmouni et al. [ 82]. Sequences of 18S rDNA further indicated Gyrodactylus salmonis (Yin and Sproston, 1948) from the non-native rainbow trout Oncorhynchus mykiss (Walbaum, 1792) from Veracruz ( Mexico) (JN230350, [ 92]) and Washington ( USA) (JF836097, [ 33]) as the closest match to our G. crysoleucas specimens from Texas (for both G. salmonis genetic variants; 99.55% similarity, 100% coverage, p -distance = 0.5%; 2 bp). Phylogenetically, G. crysoleucas parasitizing herein C. venusta from Texas together with its congener parasitizing N. crysoleucas from Minnesota formed a highly supported basal clade ( PP = 1, BS = 100) in relation to a large clade of Nearctic Gyrodactylus spp. ( Figure 3 View Figure 3 ).

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