24 documents found, page 1 of 3
Competition for food affects the strength of reproductive interference and its ...
Cruz, Miguel A.; Godoy, Oscar; De mendonça fragata almeida, Inês; Sousa, Vitor C; Magalhães, Sara; Zélé, FloreCompetition for food and reproductive interference (negative interspecific sexual interactions) have been identified as major drivers of species exclusion. Still, how these biotic interactions jointly determine competitive dominance remains largely unknown. We tackle this by coupling population models and laboratory experiments with two sibling species of spider mites. Using experiments specifically designed to...
A new species of the genus Squalius (Leuciscidae, Actinopterygii) from the Sado...
Mendes, Sofia L.; Perea, Silvia; Sousa, Vitor C; Sousa-Santos, Carla; Doadrio, IgnacioA new species of the genus Squalius (Leuciscidae, Actinopterygii) from the Sado River basin in Portugal. A new species, Squalius caetobrigus sp. nov., is described based on morphological and genetic traits. Squalius caetobrigus sp. nov. can be distinguished from other Squalius species through a combination of morphometric, meristic and genetic characteristics: 39-42 (X=40.7; X̃=41) canaliculate scales on the la...
Building a Portuguese coalition for biodiversity genomics
Marques, João P.; Alves, Paulo C.; Amorim, Isabel R.; Lopes, Ricardo Jorge; Moura, Monica; Myers, Eugene; Sim-Sim, Maria; Sousa-Santos, CarlaThe diverse physiography of the Portuguese land and marine territory, spanning from continental Europe to the Atlantic archipelagos, has made it an important repository of biodiversity throughout the Pleistocene glacial cycles, leading to a remarkable diversity of species and ecosystems. This rich biodiversity is under threat from anthropogenic drivers, such as climate change, invasive species, land use changes...
Recurrent selection shapes the genomic landscape of differentiation between a p...
Glover, Ashleigh N.; Sousa, Vitor C; Ridenbaugh, Ryan D.; Sim, Sheina B.; Geib, Scott M.; Linnen, Catherine R.Understanding the genetics of adaptation and speciation is critical for a complete picture of how biodiversity is generated and maintained. Heterogeneous genomic differentiation between diverging taxa is commonly documented, with genomic regions of high differentiation interpreted as resulting from differential gene flow, linked selection and reduced recombination rates. Disentangling the roles of each of these...
Conservation Challenges Imposed by Evolutionary History and Habitat Suitability...
Reis, Joaquim; Perea, Silvia; Gama, Mafalda; Mendes, Sofia L.; Sousa, Vitor C; Lima, Cristina; Banha, Filipe; Gil, Maria; Alvarez, Maria GarciaClimate change and associated shifts in temperature and precipitation patterns have become an increasing concern as drivers of ongoing biodiversity loss. The Mediterranean region is particularly vulnerable, being both a biodiversity hotspot and a region very prone to desertification. Freshwater mussels are amongst the most threatened invertebrate taxa worldwide. Unio tumidiformis is an endemic and endangered sp...
The European Reference Genome Atlas: piloting a decentralised approach to equit...
Mc Cartney, Ann M.; Formenti, Giulio; Mouton, Alice; De Panis, Diego; Marins, Luísa S.; Leitão, Henrique G.; Diedericks, Genevieve; Kirangwa, JosephA genomic database of all Earth’s eukaryotic species could contribute to many scientific discoveries; however, only a tiny fraction of species have genomic information available. In 2018, scientists across the world united under the Earth BioGenome Project (EBP), aiming to produce a database of high-quality reference genomes containing all ~1.5 million recognized eukaryotic species. As the European node of the ...
Hybridization in the Anthropocene – how pollution and climate change disrupt ma...
Ramirez‐Duarte, Wilson F.; Moran, Benjamin M.; Powell, Daniel L.; Bank, Claudia; Sousa, Vitor C; Rosenthal, Gil G.; Schumer, Molly; Rochman, Chelsea M.Chemical pollutants and/or climate change have the potential to break down reproductive barriers between species and facilitate hybridization. Hybrid zones may arise in response to environmental gradients and secondary contact between formerly allopatric populations, or due to the introduction of non-native species. In freshwater ecosystems, field observations indicate that changes in water quality and chemistr...
The European Reference Genome Atlas: piloting a decentralised approach to equit...
Mc Cartney, Ann M.; Formenti, Giulio; Mouton, Alice; De Panis, Diego; Marins, Luísa S; Leitão, Henrique; Diedericks, Genevieve; KIRANGWA, JOSEPHABSTRACT: A global genome database of all of Earth’s species diversity could be a treasure trove of scientific discoveries. However, regardless of the major advances in genome sequencing technologies, only a tiny fraction of species have genomic information available. To contribute to a more complete planetary genomic database, scientists and institutions across the world have united under the Earth BioGenome P...
poolHelper: An R package to help in designing Pool‐Seq studies
Carvalho, João; Faria, Rui; Butlin, Roger K.; Sousa, Vitor CNext-generation sequencing of pooled samples (Pool-seq) is an important tool in population genomics and molecular ecology. In Pool-seq, the relative number of reads with an allele reflects the allele frequencies in the sample. However, unequal individual contributions to the pool and sequencing errors can lead to inaccurate allele frequency estimates, influencing downstream analysis. When designing Pool-seq stu...
Integrating Pool‐seq uncertainties into demographic inference
Carvalho, João; Morales, Hernán E.; Faria, Rui; Butlin, Roger K.; Sousa, Vitor CNext-generation sequencing of pooled samples (Pool-seq) is a popular method to assess genome-wide diversity patterns in natural and experimental populations. However, Pool-seq is associated with specific sources of noise, such as unequal individual contributions. Consequently, using Pool-seq for the reconstruction of evolutionary history has remained underexplored. Here we describe a novel Approximate Bayesian ...