| Autor: |
Thys, Kelly JM, Vanhove, Maarten, Custers, Jonas WJ, Vranken, Nathan, Van Steenberge, Maarten, Kmentová, Nikol |
| Přispěvatelé: |
THYS, Kelly, VANHOVE, Maarten, Custers, Jonas W. J., Vranken, Nathan, VAN STEENBERGE, Maarten, KMENTOVA, Nikol |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
International journal for parasitology. 52(12) |
| ISSN: |
1879-0135 |
| Popis: |
The Nile perch (Lates niloticus) is a notorious invasive species. The introductions of Nile perch into several lakes and rivers in the Lake Victoria region led to the impoverishment of trophic food webs, particularly well documented in Lake Victoria. Additionally, its parasites were co-introduced, including Dolicirroplectanum lacustre (Monogenea, Diplectanidae). Dolicirroplectanum lacustre is the single monoge-nean gill parasite of latid fishes (Lates spp.) inhabiting several major African freshwater systems. We examined the intra-specific diversification of D. lacustre from Lates niloticus in Lake Albert, Uganda (native range) and Lake Victoria (introduced range) by assessing morphological and genetic differentiation, and microhabitat preference. We expected reduced morphological and genetic diversity for D. lacustre in Lake Victoria compared with Lake Albert, as a result of the historical introductions. We found that D. lacustre displayed high morphological variability within and between African freshwaters, with two morphotypes identified, as in former studies. The single shared morphotype between Lake Albert and Lake Victoria dis-played similar levels of haplotype and nucleotide diversity between the lakes. Mitonuclear discordance within the morphotypes of D. lacustre indicates an incomplete reproductive barrier between the morpho-types. The diversification in the mitochondrial gene portion is directly linked with the morphotypes,while the nuclear gene portions indicate conspecificity. Based on our results, we reported reduced genetic and morphological diversity, potentially being a result of a founder effect in Lake Victoria. The authors would like to thank the Research Group Zoology: Biodiversity & Toxicology at Hasselt University (UHasselt), Bel-gium. Natascha Steffanie is acknowledged for sample processing, and Armando Cruz Laufer is thanked for laboratory assistance. This study was supported by the Special Research Fund (BOF) UHasselt: BOF21DOC08 (KJMT), BOF20TT06 (MPMV), and BOF21PD01 (NK); by the Czech Science Foundation, Czech Republic standard project GA19-13573S; and by Research Foundation – Flanders, Belgium (FWO-Vlaanderen, Belgium) research grant 1513419N; infrastruc-ture was funded by EMBRC Belgium – FWO project GOH3817N. The funders had no role in study design, data collection and anal-ysis, decision to publish, or preparation of the manuscript. We thank the Royal Belgian Institute of Natural Sciences and the Royal Museum for Central Africa for sample collection under the BELSPO Brain project, HIPE (BR/154/A1/HIPE) Note: Nucleotide sequence data reported in this paper are available in GenBank under accession numbers OP422422-OP422433 (18S and ITS-1 rDNA), OP422434-OP422446 (28S rDNA) and OP413590-OP413629 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect