دورية أكاديمية
Repatriation of an old fish host as an opportunity for myxozoan parasite diversity: The example of the allis shad, Alosa alosa (Clupeidae), in the Rhine
| العنوان: | Repatriation of an old fish host as an opportunity for myxozoan parasite diversity: The example of the allis shad, Alosa alosa (Clupeidae), in the Rhine |
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| المؤلفون: | Wünnemann, Hannah, Holzer, Astrid Sybille, Pecková, Hana, Barto ová-Sojková, Pavla, Eskens, Ulrich, Lierz, Michael |
| سنة النشر: | 2022 |
| المجموعة: | Publication Server of the Justus-Liebig-University of Giessen |
| مصطلحات موضوعية: | Host reintroduction, Alosa alosa, Parasite population structure, Hoferellus alosae n. sp, Myxozoa, ddc:630 |
| الوصف: | Background: Wildlife repatriation represents an opportunity for parasites. Reintroduced hosts are expected to accumulate generalist parasites via spillover from reservoir hosts, whereas colonization with specialist parasites is unlikely. We address the question of how myxozoan parasites, which are characterized by a complex life-cycle alternating between annelids and fish, can invade a reintroduced fish species and determine the impact of a de novo invasion on parasite diversity. We investigated the case of the anadromous allis shad, Alosa alosa (L.), which was reintroduced into the Rhine approximately 70 years after its extinction in this river system. Methods: We studied parasites belonging to the Myxozoa (Cnidaria) in 196 allis shad from (i) established populations in the French rivers Garonne and Dordogne and (ii) repatriated populations in the Rhine, by screening the first adults returning to spawn in 2014. Following microscopical detection of myxozoan infections general myxozoan primers were used for SSU rDNA amplification and sequencing. Phylogenetic analyses were performed and cloned sequences were analyzed from individuals of different water sources to better understand the diversity and population structure of myxozoan isolates in long-term coexisting vs recently established host-parasite systems. Results: We describe Hoferellus alosae n. sp. from the renal tubules of allis shad by use of morphological and molecular methods. A species-specific PCR assay determined that the prevalence of H. alosae n. sp. is 100 % in sexually mature fish in the Garonne/Dordogne river systems and 22 % in the first mature shad returning to spawn in the Rhine. The diversity of SSU rDNA clones of the parasite was up to four times higher in the Rhine and lacked a site-specific signature of SNPs such as in the French rivers. A second myxozoan, Ortholinea sp., was detected exclusively in allis shad from the Rhine. Conclusions: Our data demonstrate that the de novo establishment of myxozoan infections in rivers is slow but of ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-128902Test; https://jlupub.ub.uni-giessen.de//handle/jlupub/9301Test; http://dx.doi.org/10.22029/jlupub-8689Test |
| DOI: | 10.22029/jlupub-8689 |
| الإتاحة: | https://doi.org/10.22029/jlupub-8689Test http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-128902Test https://jlupub.ub.uni-giessen.de//handle/jlupub/9301Test |
| حقوق: | Namensnennung 4.0 International ; https://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: | edsbas.5AB612ED |
| قاعدة البيانات: | BASE |
| DOI: | 10.22029/jlupub-8689 |
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