@article {6516, title = {Eating eggplants as a cucurbit feeder: Dietary shifts affect the gut microbiome of the melon fly Zeugodacus cucurbitae (Diptera, Tephritidae)}, volume = {11}, year = {2022}, month = {Aug-01-2022}, issn = {2045-8827, 2045-8827}, doi = {10.1002/mbo3.1307}, url = {http://dx.doi.org/10.1002/mbo3.1307}, author = {Hendrycks, Wouter and Delatte, H{\'e}l{\`e}ne and Moquet, Laura and Bourtzis, Kostas and Mullens, Nele and De Meyer, Marc and Backeljau, Thierry and Virgilio, Massimiliano} } @article {6509, title = {Large-scale and small-scale population genetic structure of the medically important gastropod species Bulinus truncatus (Gastropoda, Heterobranchia)}, volume = {15}, year = {2022}, month = {Sep-19-2022}, abstract = {

Abstract Background Gastropod snails remain strongly understudied, despite their important role in transmitting parasitic diseases. Knowledge of their distribution and population dynamics increases our understanding of the processes driving disease transmission. We report the first study to use high-throughput sequencing (HTS) to elucidate the population genetic structure of the hermaphroditic snail Bulinus truncatus (Gastropoda, Heterobranchia) on a regional (17\–150\ km) and inter-regional (1000\–5400\ km) scale. This snail species acts as an intermediate host of Schistosoma haematobium and Schistosoma bovis, which cause human and animal schistosomiasis respectively. Methods Bulinus truncatus snails were collected in Senegal, Cameroon, Egypt and France and identified through DNA barcoding. A single-end genotyping-by-sequencing (GBS) library, comprising 87 snail specimens from the respective countries, was built and sequenced on an Illumina HiSeq 2000 platform. Reads were mapped against S. bovis and S. haematobium reference genomes to identify schistosome infections, and single nucleotide polymorphisms (SNPs) were scored using the Stacks pipeline. These SNPs were used to estimate genetic diversity, assess population structure and construct phylogenetic trees of B. truncatus. Results A total of 10,750 SNPs were scored and used in downstream analyses. The phylogenetic analysis identified five clades, each consisting of snails from a single country but with two distinct clades within Senegal. Genetic diversity was low in all populations, reflecting high selfing rates, but varied between locations due to habitat variability. Significant genetic differentiation and isolation by distance patterns were observed at both spatial scales, indicating that gene flow is not strong enough to counteract the effects of population bottlenecks, high selfing rates and genetic drift. Remarkably, the population genetic differentiation on a regional scale (i.e. within Senegal) was as large as that between populations on an inter-regional scale. The blind GBS technique was able to pick up parasite DNA in snail tissue, demonstrating the potential of HTS techniques to further elucidate the role of snail species in parasite transmission. Conclusions HTS techniques offer a valuable toolbox to further investigate the population genetic patterns of intermediate schistosome host snails and the role of snail species in parasite transmission. Graphical Abstract

}, issn = {1756-3305}, doi = {10.1186/s13071-022-05445-x}, url = {http://dx.doi.org/10.1186/s13071-022-05445-x}, author = {Maes, Tim and De Corte, Zo{\"e} and Vangestel, Carl and Virgilio, Massimiliano and Smitz, Nathalie and Djuikwo-Teukeng, F{\'e}licit{\'e} F. and Papadaki, Maria Ioanna and Huyse, Tine} } @article {6507, title = {DNA barcoding echinoderms from the East Coast of South Africa. The challenge to maintain DNA data connected with taxonomy}, journal = {PLoS ONE}, volume = {17}, year = {2022}, month = {Oct-10-2022}, pages = {e0270321}, abstract = {

Echinoderms are marine water invertebrates that are represented by more than 7000 extant species, grouped in five classes and showing diverse morphologies (starfish, sea lilies, feather stars, sea urchins, sea cucumbers, brittle and basket stars). In an effort to further study their diversity, DNA barcodes (DNA fragments of the 5\’ end of the cytochrome c oxidase subunit I gene, COI) have been used to complement morphological examination in identifying evolutionary lineages. Although divergent clusters of COI sequences were reported to generally match morphological species delineations, they also revealed some discrepancies, suggesting overlooked species, ecophenotypic variation or multiple COI lineages within one species. Here, we sequenced COI fragments of 312 shallow-water echinoderms of the East Coast of South Africa (KwaZulu-Natal Province) and compared morphological identifications with species delimitations obtained with four methods that are exclusively based on COI sequences. We identified a total of 103 morphospecies including 18 that did not exactly match described species. We also report 46 COI sequences that showed large divergences (\>5\% p-distances) with those available to date and publish the first COI sequences for 30 species. Our analyses also identified discordances between morphological identifications and COI-based species delimitations for a considerable proportion of the morphospecies studied here (49/103). For most of them, further investigation is necessary to keep a sound connection between taxonomy and the growing importance of DNA-based research.

}, issn = {1932-6203}, doi = {10.1371/journal.pone.0270321}, url = {http://dx.doi.org/10.1371/journal.pone.0270321}, author = {Sonet, Gontran and Smitz, Nathalie and Vangestel, Carl and Samyn, Yves}, editor = {Chiang, Tzen-Yuh} } @article {6501, title = {Population genomics of introduced Nile tilapia Oreochromis niloticus (Linnaeus, 1758) in the Democratic Republic of the Congo: Repeated introductions since colonial times with multiple sources}, journal = {Molecular Ecology}, volume = {31}, year = {2022}, month = {May-07-2022}, pages = {3304 {\textendash} 3322}, issn = {0962-1083, 1365-294X}, doi = {10.1111/mec.16479}, url = {http://dx.doi.org/10.1111/mec.16479}, author = {Geraerts, Mare and Vangestel, Carl and Artois, Tom and Fernandes, Jorge Manuel de Oliveira and Jorissen, Michiel W. P. and Chocha Manda, Auguste and Danadu Mizani, C{\'e}lestin and Smeets, Karen and Snoeks, Jos and Sonet, Gontran and Tingbao, Yang and Van Steenberge, Maarten and Vreven, Emmanuel and Lunkayilakio Wamuini, Soleil and Vanhove, Maarten P. M. and Huyse, Tine} } @article {6497, title = {Systematics of Afrotropical Eristalinae (Diptera: Syrphidae) using mitochondrial phylogenomics}, journal = {Systematic Entomology}, volume = {47}, year = {2022}, month = {Jan-11-2022}, pages = {315 {\textendash} 328}, issn = {0307-6970, 1365-3113}, doi = {10.1111/syen.12532}, url = {http://dx.doi.org/10.1111/syen.12532}, author = {Mullens, Nele and Sonet, Gontran and Virgilio, Massimiliano and Goergen, Georg and Janssens, Steven B. and De Meyer, Marc and Jordaens, Kurt} } @article {6496, title = {A masculinizing supergene underlies an exaggerated male reproductive morph in a spider}, journal = {Nature Ecology \& Evolution}, volume = {6}, year = {2022}, month = {Dec-23-2021}, pages = {195 {\textendash} 206}, issn = {2397-334X}, doi = {10.1038/s41559-021-01626-6}, url = {http://dx.doi.org/10.1038/s41559-021-01626-6}, author = {Hendrickx, Frederik and De Corte, Zo{\"e} and Sonet, Gontran and Van Belleghem, Steven M. and K{\"o}stlbacher, Stephan and Vangestel, Carl} } @article {6494, title = {Tracking the origin of worked elephant ivory of a medieval chess piece from Belgium through analysis of ancient DNA}, journal = {International Journal of Osteoarchaeology}, volume = {32}, year = {2022}, month = {Sep-27-2021}, pages = {38 {\textendash} 48}, issn = {1047-482X, 1099-1212}, doi = {10.1002/oa.3041}, url = {http://dx.doi.org/10.1002/oa.3041}, author = {Goffette, Quentin and Suarez Gonzalez, Nathalie and Vanmechelen, Rapha{\"e}l and Verheyen, Erik and Sonet, Gontran} }