Christelle Tougard

Christelle Tougard
Université de Montpellier | UM1 · Institut des Sciences de l’Évolution Montpellier (ISEM)

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172
Publications
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1,335
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Publications

Publications (172)
Article
Full-text available
On one hand, studies on Salmo biological variations during the last centuries have led to the morphological description of several Salmo species (>50). On the other hand, Salmo trutta is seen as a polymorphic species, i.e. including populations with different morphotypes and ecotypes, subdivided into nine genetically divergent evolutionary lineages...
Article
A recent study based on molecular biological data revealed that Gobius canestrinii (Ninni, 1883), a gobioid fish endemic to the Adriatic basin, has to be split in three lineages. The original description was based on populations from two distant localities in Italy and in Croatia respectively, the first representing one of these lineages, the secon...
Article
Full-text available
Corresponding author: harald.ahnelt@univie.ac.at A recent study based on molecular biological data revealed that Gobius canestrinii (Ninni, 1883), a gobioid fish endemic to the Adriatic basin, has to be split in three lineages. The original description was based on populations from two distant localities in Italy and in Croatia respectively, the f...
Article
The Adriatic Sea and Adriatic Sea drainage system (or Adriatic region) is characterized by high levels of species richness. This especially applies to endemic fishes, as exemplified by the sand gobies. However, the diversity of this group is probably still underestimated. Several keys for gobiid identification, notably of the Adriatic region, have...
Article
The role of south-western Alps as a corridor for Mediterranean trout (Salmo trutta complex Linnaeus, 1758) was evaluated in order to understand the influence of the last glacial events in shaping the spatial distribution of the genetic diversity of this salmonid. For this, the allochthonous hypothesis of a man-mediated French origin (19th century)...
Article
Full-text available
During the last two decades, genotyping of African rodents has revealed important hidden diversity within morphologically cryptic genera, such as Rhabdomys. Although the distribution of Rhabdomys is known historically, its diversity has been revealed only recently, and information about the distribution range of its constituent taxa is limited. The...
Article
Full-text available
Both morphological and molecular data are presented and discussed for indigenous Salmo sp. from Corsica and Sardinia, here called Tyrrhenian trout. For comparison, morphological data obtained from museum specimens, including the Algerian S. macrostigma, are discussed in the light of recent and new molecular findings. In total, 29 measurements and 2...
Conference Paper
Full-text available
Brown trout (Salmo trutta) has a wide natural distribution range extending from Europe to Asia and Africa. With other salmonids, it exhibits high polymorphism depending on life histories and ecology; mostly manifests as several phenotypes varying in morphology, colour patterns and behaviour even in sympatric species. However, traditional molecular...
Article
Killer whales (Orcinus orca) in Norwegian waters have long been known to rely on Atlantic herring (Clupea harengus) as a main prey resource. However, research almost exclusively conducted at seasonal herring grounds may have biased studies away from detecting other potentially significant prey species. Since 2013, dedicated research efforts have fo...
Article
Full-text available
In diet metabarcoding analyses, insufficient taxonomic coverage of PCR primer sets generates false negatives that may dramatically distort biodiversity estimates. In this paper, we investigated the taxonomic coverage and complementarity of three cy-tochrome c oxidase subunit I gene (COI) primer sets based on in silico analyses and we conducted an i...
Article
Full-text available
The brown trout (Salmo trutta L.) is widely distributed all around Europe but its natural diversity is threatened by massive stocking with Atlantic domestic strains. Describing the remaining natural genetic diversity and the proportion of domestic hatchery strains in rivers is a prerequisite for smart conservation. The high genetic diversity of bro...
Article
In diet metabarcoding analyses, insufficient taxonomic coverage of PCR primer sets generates false negatives that may dramatically distort biodiversity estimates. In this paper, we investigated the taxonomic coverage and complementarity of three cytochrome c oxidase subunit I gene (COI) primer sets based on in silico analyses and we conducted an in...
Article
We examined specimens of the macrostigma trout Salmo macrostigma , which refers to big black spots on the flanks, to assess whether it is an example of taxonomic inflation within the brown trout Salmo trutta complex. Using new specimens, publicly available data and a mitogenomic protocol to amplify the control and cytochrome b regions of the mitoch...
Article
We examined specimens of the macrostigma trout Salmo macrostigma, which refers to big black spots on the flanks, to assess whether it is an example of taxonomic inflation within the brown trout Salmo trutta complex. Using new specimens, publicly available data and a mitogenomic protocol to amplify the control and cytochrome b regions of the mitocho...
Article
We used comparative phylogeography of two intestinal parasites of freshwater fish to test whether similarity in life cycle translates into concordant phylogeographical history. The thorny-headed worms Pomphorhynchus laevis and P. tereticollis (Acanthocephala) were formerly considered as a single species with a broad geographical and host range with...
Article
Full-text available
Evaluating biodiversity and understanding the processes involved in diversification are noticeable conservation issues in fishes subject to large, sometimes illegal, ornamental trade purposes. Here, the diversity and evolutionary history of the Neotropical dwarf cichlid genus Apistogramma from several South American countries are investigated. Mito...
Data
Maximum-likelihood tree reconstructed from the Apistogramma concatenated sequence dataset of the mitochondrial cytochrome b and cytochrome c oxydase I genes and the Tmo-4C4 nuclear locus. Sequences are reported in the S2 Table. Numbers at nodes are for bootstrap percentages (≥ 50%) and posterior probabilities (≥ 0.85). Black circles indicates nodes...
Data
XML file generated by BEAUti v2.4.4 in order to run the StarBEAST2 analysis with BEAST v2.4.4. (PDF)
Data
Simplified maximum-likelihood tree reconstructed from the Apistogramma sequence dataset of the Tmo-4C4 nuclear locus. Sequences are reported in the S2 Table. Numbers at nodes are for bootstrap percentages (≥ 50%) and posterior probabilities (≥ 0.85). Grey circles are for nodes with a weak support (BP < 50% and PP < 0.85). Grey circles are for nodes...
Data
Simplified maximum-likelihood tree reconstructed from the Apistogramma sequence dataset of the mitochondrial cytochrome b gene. Sequences are reported in the S2 Table. Numbers at nodes are for bootstrap percentages (≥ 50%) and posterior probabilities (≥ 0.80). Black circles indicates nodes with BP = 100% and PP = 1.00, while grey circles are for no...
Data
Detailed list of the Apistogramma labels and sampling localities. Accession numbers for sequences produced in the frame of the present study and previously submitted to GenBank are provided for the cytochrome b and cytochrome c oxydase I genes and the Tmo-4C4 nuclear locus. Haplotypes from concatenated mitochondrial and nuclear markers are also lis...
Data
Genetic distance within and between Apistogramma species and the outgroup. (PDF)
Data
Simplified maximum-likelihood tree reconstructed from the Apistogramma sequence dataset of the mitochondrial cytochrome c oxydase I gene. Sequences are reported in the S2 Table. Numbers at nodes are for bootstrap percentages (≥ 50%) and posterior probabilities (≥ 0.85). Black circles indicates nodes with BP = 100% and PP = 1.00, while grey circles...
Data
Number of morphospecies and phylogenetic clades for each marker and the concatenated dataset. (PDF)
Article
Full-text available
The main objective of this work was to develop and validate a robust and reliable 'from benchtop-to-desktop' metabarcoding workflow to investigate the diet of invertebrate-eaters. We applied our workflow to fecal DNA samples of an invertebrate-eating fish species. A fragment of the COI gene was amplified by combining two minibarcoding primer sets t...
Article
The objective of this study was to establish whether the Quaternary climatic fluctuations influenced the tempo and mode of diversification in European rodents. Our case study is the subgenus Microtus (Terricola) distributed from western Europe to the Caucasus. Mitochondrial cytochrome b gene sequences from several representatives of all the species...
Article
Knowledge on faunal diversification in African rainforests remains scarce. We used phylogeography to assess (i) the role of Pleistocene climatic oscillations in the diversification of the African common pangolin (Manis tricuspis), and (ii) the utility of our multi-locus approach for taxonomic delineation and trade tracing of this heavily poached sp...
Article
Full-text available
Mobile organisms are expected to show population differentiation only over fairly large geographical distances. However, there is growing evidence of discrepancy between dispersal potential and realized gene flow. Here we report an intriguing pattern of differentiation at a very small spatial scale in the forest thrush (Turdus lherminieri), a bird...
Article
Full-text available
Island evolution may be expected to involve fast initial morphological divergence followed by stasis. We tested this model using the dental phenotype of modern and ancient common voles (Microtus arvalis), introduced onto the Orkney archipelago (Scotland) from continental Europe some 5000 years ago. First, we investigated phenotypic divergence of Or...
Article
Full-text available
Through the study of the phylogeographic structure and demographic history of the common goby, Pomatoschistus microps, the influence of Quaternary climatic changes on the evolutionary history of coastal and marine fishes is investigated. Because of its sedentary life cycle in Mediterranean lagoons, it is also a good model to study more specifically...

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Project (1)
Project
This "project" is meant to act more like a "group" for goby scientists. The aim is to share information about meetings, research and other activities, and to provide a forum for communication among scientists and students working with goby fishes. Anyone working with gobies as a student or scientist (or otherwise) is welcome to join the network - the more, the better. In order to join, you have (according to RG rules, if I understand them right) to follow me on RG, because the Goby Network is hosted on my profile. And then you need send me a message on RG that you would like to join. You will then be entered as a "collaborator", in line with RG terminology. Not all goby scientists are on RG. If you are but know colleagues you think should become members of the Goby Network you may encourage/invite them to join RG. Please note that there is also a Facebook group called "Goby Research Group", with Johannes Björk as the admin. If you're on Fb, I encourage you to join this group, too. The Fb group may be a quicker way for simple discussions, questions, etc, whereas RG is better for sharing articles (pdfs) and other written material. They overlap as tools for notifying about new research - I encourage you to use both to make the network know about your recent work. And, in case of RG, also of not-so-recent work. Note that info posted in the "Project" seems to be visible to anyone at RG - so don't post any material that you would not like to be widely accessible.