Marco Crotti

Marco Crotti
University of Glasgow | UofG · Institute of Biodiversity, Animal Health and Comparative Medicine

PhD Evolutionary Biology

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16
Publications
10,252
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97
Citations
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October 2016 - June 2020
University of Glasgow
Position
  • PhD Student

Publications

Publications (16)
Article
Full-text available
Several porcupine taxa are reported from the middle Miocene to the early Holocene in the Old World. Among these, five species of the subfamily Hystricinae occurred in Africa approximately in the last 6 Ma: the extinct Hystrix makapanensis, Hystrix leakeyi, and Xenohystrix crassidens and the still living Hystrix africaeaustralis and Hystrix cristata...
Article
Full-text available
Identifying the molecular mechanisms facilitating adaptation to new environments is a key question in evolutionary biology, especially in the face of current rapid and human-induced changes. Translocations have become an important tool for species conservation, but the attendant small population sizes and new ecological pressures might affect pheno...
Article
Full-text available
Pleistocene glaciations dramatically affected species distribution in regions that were impacted by ice cover and subsequent post‐glacial range expansion impacted contemporary biodiversity in complex ways. The European whitefish, Coregonus lavaretus, is a widely distributed salmonid fish species on mainland Europe but in Britain it has only seven n...
Article
Full-text available
The European whitefish Coregonus lavaretus complex represents one of the most diverse radiations within salmonids, with extreme morphological and genetic differentiation across its range. Such variation has led to the assignment of many populations to separate species. In Great Britain, the seven native populations of C. lavaretus (two in Scotland,...
Article
Full-text available
Epigenetics is increasingly recognised as an important molecular mechanism underlying phenotypic variation. To study DNA methylation in ecological and evolutionary contexts, epiRADseq is a cost‐effective next‐generation sequencing technique based on reduced representation sequencing of genomic regions surrounding non‐/methylated sites. EpiRADseq fo...
Article
The Vallparadís composite section (VCS) includes the nearby paleontological sites of Cal Guardiola and Vallparadís Estació (Vallès-Penedès Basin, northeastern Iberian Peninsula). The section spans from before the Jaramillo subchron to the early Middle Pleistocene (ca. 1.2-0.6 Ma). In this study, we describe the suid record from VCS and we review th...
Article
Full-text available
Background: A key component of schistosomiasis control is mass drug administration with praziquantel. While control interventions have been successful in several endemic regions, mass drug administration has been less effective in others. Here we focus on the impact of repeated praziquantel treatment on the population structure and genetic diversi...
Preprint
Full-text available
Epigenetics is increasingly recognised as an important molecular mechanism underlying phenotypic variation. To study DNA methylation in ecological and evolutionary contexts, epiRADseq is a cost-effective next-generation sequencing technique based on reduced representation sequencing of genomic regions surrounding non-/methylated sites. EpiRADseq fo...
Article
Full-text available
As a conservation measure to protect European whitefish in Scotland, a translocated population was established in Loch Sloy from Loch Lomond stock between 1988 and 1990. Previous study has assumed that current morphological differences between adults from the donor and refuge lakes have arisen through phenotypic plasticity. The present study compar...
Conference Paper
Full-text available
The Vallparadís composite section includes the paleontological sites of Cal Guardiola and Vallparadís Estació, respectively located in the western and eastern bank of the Torrent de Vallparadís (Terrassa, Catalonia, NE Spain). The Vallparadís section spans from before the Jaramillo subchron to the early Middle Pleistocene (ca. 1.2–0.6 Ma). It inclu...
Article
Restriction site‐associated DNA sequencing (RADseq) has emerged as a useful tool in systematics and population genomics. A common feature of RADseq data sets is that they contain missing data that arise from multiple sources including genealogical sampling bias, assembly methodology and sequencing error. Many RADseq studies have demonstrated that a...
Article
Full-text available
The Neotropical leaf litter frog genus Pristimantis is very species-rich, with 526 species described to date, but the full extent of its diversity is much higher and remains unknown. This study explores the phylogenetic processes and resulting evolutionary patterns of diversification in Pristimantis. Given the well-recognised failure of morphology-...
Article
Full-text available
Rogues are relatively unstable taxa in phylogenetic analyses that are of concern if they obfuscate relationships, or support for relationships, of interest among more stable taxa. RogueNaRok is a recently developed heuristic solution to the problem of identifying rogue taxa. We illustrate the performance of RogueNaRok with simple examples designed...
Article
Full-text available
Digenea is a wide and diverse group of trematodes, whose members are able to parasitize all classes of vertebrates, and several groups of invertebrates.While the usual life-cycle involves three hosts, a great number of species has evolved to increase or to reduce the number of hosts during development, in order to be more successful in their ecolog...

Questions

Question (1)
Question
Dear all, I have a couple of questions regarding the GMYC model and its implementation. First of all, I am applying the model similarly to Humphreys and Barraclough (2014), trying to identify clusters above the species level. I applied the single threshold method but it was not significantly better than the null model. So I applied the multiplethreshold method and it was significant. Do you have any ideas on how to interpret these results? And secondly, with the function gmyc.support() I get support for nodes, but how do I interpret these values? Are they similar to bootstrap values or bayesian posterior probabilities? Thank you in advance, Marco

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Projects

Project (1)
Archived project
Understanding the phylogenetic history of suids using both living and fossil species. Estimating time of divergence between major clades within suidae, and understanding their biogeography.