Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/36891
Title: | Molecular footprint of parasite co-introduction with Nile tilapia in the Congo Basin | Authors: | JORISSEN, Michiel VANHOVE, Maarten Pariselle, Antoine Snoeks, Jos Vreven, Emmanuel Šimková, Andrea Lunkayilakio, Soleil Wamuini Manda, Auguste Chocha Kasembele, Gyrhaiss Kapepula Bukinga, Fidel Muterezi ARTOIS, Tom Huyse, Tine |
Issue Date: | 2021 | Abstract: | Nile tilapia, one of the most popular aquaculture species worldwide, has been introduced into the Congo Basin several times. In previous morphological studies, we showed that some of the monogenean gill parasites were co-introduced with Nile tilapia and some spilled over to native Congolese cichlids. In this study, we investigated the co-introduced monogeneans of Nile tilapia genetically from three major parts of the Congo Basin; Upper, Middle and Lower Congo. We generated sequences of Congolese native and introduced monogeneans from native and introduced tilapias and evaluate their position in a phylogeny. Additionally, we generated sequences of the same species of monogeneans co-introduced with Nile tilapia in Madagascar and of a native population of Nile tilapia from Burundi. Our results confirm the co-introductions in the Congo. We found that co-introduced parasites are less genetically diverse than native ones, and that there was no geographical pattern between introduced populations. Furthermore, our COI haplotype networks suggest multiple introduction events of Nile tilapia into the Congo Basin. Additionally, we tested the barcoding gap and the performance of mitochondrial COI and nuclear ribosomal ITS-1, 28S and 18S markers. We found a significant intra/interspecific barcoding gap of 15% for COI, but none for the other markers. Our molecular results reveal that Cichlidogyrus halli, C. papernastrema, C. tiberianus, C. cirratus and C. zambezensis are in need of taxonomic revision. | Keywords: | Tilapia;Monogenea;Co-introduction;Phylogeny;Barcoding;Marker Performance;mutations | Document URI: | http://hdl.handle.net/1942/36891 | DOI: | 10.21203/rs.3.rs-995291/v1 | Category: | O | Type: | Preprint |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Jorissen et al 2021 ResearchSquare.pdf | Non Peer-reviewed author version | 1.26 MB | Adobe PDF | View/Open |
Page view(s)
54
checked on Aug 31, 2022
Download(s)
50
checked on Aug 31, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.