Marta Pascual

Universitat de Barcelona

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Carlos Carreras

Universitat de Barcelona

Xavier Turón

Centre d'Estudis Avançats de Blanes

Enrique Macpherson

Centre d'Estudis Avançats de Blanes

Cinta Pegueroles

Universitat Autònoma de Barcelona

Francesc Mestres

Universitat de Barcelona

Ferran Palero

Universitat de València

Carles Galià‐Camps

Universitat de Barcelona

Joan Balanyà

Universitat de Barcelona

Luís Cardona

Universitat de Barcelona

Pedro Simões

University of Lisbon

Cooperative Institutions

Universitat de Barcelona

158

Centre National de la Recherche Scientifique

110

Consejo Superior de Investigaciones Científicas

Institut de Biologia Evolutiva

Institut de Recherche pour le Développement

Universitat Autònoma de Barcelona

Université de Montpellier

Pompeu Fabra University

Centre d'Estudis Avançats de Blanes

Institut de Ciències del Mar

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Impact of individual early life traits in larval dispersal: A multispecies approach using backtracking models

Progress In Oceanography (2021)

Héctor Torrado Baptiste Mourre N. Raventos Carlos Carreras Joaquı́n Tintoré

Backtracking

10.1016/j.pocean.2021.102518

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Citations (35)

The discovery, distribution and diversity of DNA viruses associated withDrosophila melanogasterin Europe

bioRxiv (Cold Spring Harbor Laboratory) (2020)

Megan A. Wallace Kelsey A. Coffman Clément Gilbert Sanjana Ravindran Gregory F. Albery

Abstract Drosophila melanogaster is an important model for antiviral immunity in arthropods, but very few DNA viruses have been described from the family Drosophilidae. This deficiency limits our opportunity to use natural host-pathogen combinations in experimental studies, and may bias our understanding of the Drosophila virome. Here we report fourteen DNA viruses detected in a metagenomic analysis of approximately 6500 pool-sequenced Drosophila , sampled from 47 European locations between 2014 and 2016. These include three new Nudiviruses, a new and divergent Entomopox virus, a virus related to Leptopilina boulardi filamentous virus, and a virus related to Musca domestica salivary gland hypertrophy virus. We also find an endogenous genomic copy of Galbut virus, a dsRNA Partitivirus, segregating at very low frequency. Remarkably, we find that Drosophila Vesanto virus, a small DNA virus previously described as a Bidnavirus, may be composed of up to 12 segments and represent a new lineage of segmented DNA viruses. Two of the DNA viruses, Drosophila Kallithea nudivirus and Drosophila Vesanto virus are relatively common, found in 2% or more of wild flies. The others are rare, with many likely to be represented by a single infected fly. We find that virus prevalence in Europe reflects the prevalence seen in publicly-available datasets, with Drosophila Kallithea nudivirus and Drosophila Vesanto virus the only ones commonly detectable in public data from wild-caught flies and large population cages, and the other viruses being rare or absent. These analyses suggest that DNA viruses are at lower prevalence than RNA viruses in D. melanogaster , and may be less likely to persist in laboratory cultures. Our findings go some way to redressing an earlier bias toward RNA virus studies in Drosophila , and lay the foundation needed to harness the power of Drosophila as a model system for the study of DNA viruses.

DNA virus

Human virome

RNA virus

Melanogaster

10.1101/2020.10.16.342956

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Citations (2)

Rapid radiation and cryptic speciation in mediterranean triplefin blennies (Pisces: Tripterygiidae) combining multiple genes

Molecular Phylogenetics and Evolution (2005)

Josep Carreras-Carbonell Enrique Macpherson Marta Pascual

Subspecies

Species complex

Genetic algorithm

10.1016/j.ympev.2005.04.021

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Citations (49)

Evaluating restriction enzyme selection for genome reduction in conservation genomics

bioRxiv (Cold Spring Harbor Laboratory) (2022)

A Leiro Lopez Carlos Carreras Marta Pascual Cinta Pegueroles

Abstract Conservation genomic studies in non-model organisms generally rely on genome reduction techniques based on restriction enzymes to identify population structure as well as candidate loci for local adaptation. These reduced libraries ensure a high density of SNP loci and high coverage for accurate genotyping. Despite the fraction of the genome that is sequenced is expected to be randomly located, the reduction of the genome might depend on the recognition site of the restriction enzyme used. Here, we evaluate the distribution and functional composition of loci obtained after Genotyping-by-sequencing (GBS) genome reduction with two widely used restriction enzymes (EcoT22I and ApeKI). To do so, we compared data from two endemic fish species ( Symphodus ocellatus and Symphodus tinca , EcoT22I enzyme) and two ecosystem engineer sea urchins ( Paracentrotus lividus and Arbacia lixula , ApeKI enzyme). In brief, we mapped the sequenced loci to the phylogenetically closest reference genome available ( Labrus bergylta for fish and Strongylocentrotus purpuratus for sea urchins), classified them as exonic, intronic, and intergenic, and studied their functionality by using GO terms. We detected an enrichment towards exonic or intergenic regions depending on the restriction enzyme used, and we did not detect differences between total loci and candidate loci for adaptation. Despite most GO terms being shared between species, the analysis of their abundance showed differences between taxonomic groups, which may be attributed to differences of the targeted loci. Our results highlight the importance of restriction enzyme selection and the need for high-quality annotated genomes in conservation genomic studies.

10.1101/2022.11.26.518029

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Citations (0)

Supplementary material from "Distribution modelling of an introduced species: do adaptive genetic markers affect potential range?"

Marta Pascual

Affect

10.6084/m9.figshare.c.5106167.v1

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Seasonal patterns of settlement and growth of introduced and native ascidians in bivalve cultures in the Ebro Delta (NE Iberian Peninsula)

Regional Studies in Marine Science (2017)

Maria Casso Marina Garcia-Jove Navarro Víctor Ordóñez Margarita Fernández‐Tejedor Marta Pascual

Peninsula

10.1016/j.rsma.2017.11.002

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Citations (21)

Additional file 5: of Patterns of geographic variation of thermal adapted candidate genes in Drosophila subobscura sex chromosome arrangements

Figshare (2018)

Pedro Simões Marta Pascual

Genetic differentiation (FST) for coding and non-coding regions in the concatenated dataset for all 4 genes (A) and for coding, intronic and 5’ UTR regions for PhKgamma (B). (XLSX 13 kb)

Drosophila subobscura

Variation (astronomy)

Candidate gene

Geographic variation

10.6084/m9.figshare.6193607

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Citations (0)

Patient-Reported Outcome Measures (PROM) en cirugía del cáncer colorrectal

Cirugía Española (2024)

Romina Pena Marta Pascual

Prom

Patient-reported outcome

10.1016/j.ciresp.2024.09.010

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Tracking Invasion Histories in the Sea: Facing Complex Scenarios Using Multilocus Data

PLoS ONE (2012)

Marc Rius Xavier Turón Víctor Ordóñez Marta Pascual

In recent years, new analytical tools have allowed researchers to extract historical information contained in molecular data, which has fundamentally transformed our understanding of processes ruling biological invasions. However, the use of these new analytical tools has been largely restricted to studies of terrestrial organisms despite the growing recognition that the sea contains ecosystems that are amongst the most heavily affected by biological invasions, and that marine invasion histories are often remarkably complex. Here, we studied the routes of invasion and colonisation histories of an invasive marine invertebrate Microcosmus squamiger (Ascidiacea) using microsatellite loci, mitochondrial DNA sequence data and 11 worldwide populations. Discriminant analysis of principal components, clustering methods and approximate Bayesian computation (ABC) methods showed that the most likely source of the introduced populations was a single admixture event that involved populations from two genetically differentiated ancestral regions - the western and eastern coasts of Australia. The ABC analyses revealed that colonisation of the introduced range of M. squamiger consisted of a series of non-independent introductions along the coastlines of Africa, North America and Europe. Furthermore, we inferred that the sequence of colonisation across continents was in line with historical taxonomic records - first the Mediterranean Sea and South Africa from an unsampled ancestral population, followed by sequential introductions in California and, more recently, the NE Atlantic Ocean. We revealed the most likely invasion history for world populations of M. squamiger, which is broadly characterized by the presence of multiple ancestral sources and non-independent introductions within the introduced range. The results presented here illustrate the complexity of marine invasion routes and identify a cause-effect relationship between human-mediated transport and the success of widespread marine non-indigenous species, which benefit from stepping-stone invasions and admixture processes involving different sources for the spread and expansion of their range.

Colonisation

Ancient DNA

10.1371/journal.pone.0035815

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Citations (55)

Isolation and characterization of microsatellite loci in Palinurus elephas

Molecular Ecology Resources (2008)

Ferran Palero Marta Pascual

The European spiny lobster (Palinurus elephas) mean annual catches have decreased alarmingly during recent decades along its entire distribution area due to stock over-exploitation, which makes it a primary target for conservation plans. A total of 164 microsatellite loci were isolated from a genomic library of P. elephas enriched for CA, GA, CAA and GATA repeats. A total of 15 polymorphic loci have been screened in 48 individuals. High numbers of alleles per locus (averaging 20 ± 10.5) and observed heterozygosity (averaging 0.789 ± 0.197) have been detected. None of the pairs of loci showed significant linkage disequilibrium. Two of the loci (Pael1 and Pael2) showed significant departure from Hardy-Weinberg equilibrium in Sagres, while Pael38 showed significant departure in Tunis. These highly polymorphic markers will be useful in determining the spatial patterns of genetic diversity between and within populations of Palinurus elephas.

Linkage Disequilibrium

10.1111/j.1755-0998.2008.02230.x

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Citations (7)