146 Works

Data from: The timing of eukaryotic evolution: Does a relaxed molecular clock reconcile proteins and fossils?

Emmanuel J. P. Douzery, Elizabeth A. Snell, Eric Bapteste, Frédéric Delsuc & Hervé Philippe
The use of nucleotide and amino acid sequences allows improved understanding of the timing of evolutionary events of life on earth. Molecular estimates of divergence times are, however, controversial and are generally much more ancient than suggested by the fossil record. The limited number of genes and species explored and pervasive variations in evolutionary rates are the most likely sources of such discrepancies. Here we compared concatenated amino acid sequences of 129 proteins from 36...

Data from: Visual obstruction and vigilance: a natural experiment

Guy Beauchamp
Visual obstructions can cause an increase in antipredator vigilance in prey animals by making predator detection more difficult. However, visual obstructions can also skew the perception of group size and inter-individual distances and impair the detection of alarm signals by conspecifics. These changes within the group alone can cause an increase in vigilance. To disentangle the contribution of these various factors to changes in vigilance, I documented vigilance in a gregarious species, the semipalmated sandpiper...

Data from: Social networks predict gut microbiome composition in wild baboons

Jenny Tung, Luis B. Barriero, Michael B. Burns, J. C. Grenier, Josh Lynch, Laura E Grieneisen, Jeanne Altmann, Susan C Alberts, Ran Blekhman, Elizabeth A Archie & Jean-Christophe Grenier
Social relationships have profound effects on health in humans and other primates, but the mechanisms that explain this relationship are not well understood. Using shotgun metagenomic data from wild baboons, we found that social group membership and social network relationships predicted both the taxonomic structure of the gut microbiome and the structure of genes encoded by gut microbial species. Rates of interaction directly explained variation in the gut microbiome, even after controlling for diet, kinship,...

Data from: Causes and consequences of individual variation in the extent of post-juvenile moult in the blue tit Cyanistes caeruleus (Passeriformes: Paridae)

Ross A. Crates, Ben C. Sheldon & Colin J. Garroway
Moult, comprising the growth or replacement of feathers in birds, is an energetically demanding process. As a result, in many species, the extent of the post-juvenile moult can vary substantially. However, the reasons underlying this variation remain poorly understood, and the potential life-history consequences of variation in moult extent are even less clear. In the present study, we aimed to use individual-specific data to identify factors affecting the extent of the post-juvenile moult in a...

Data from: Early replication dynamics of sex-linked mitochondrial DNAs in the doubly uniparental inheritance species Ruditapes philippinarum (Bivalvia Veneridae)

Davide Guerra, Fabrizio Ghiselli, Liliana Milani, Sophie Breton & Marco Passamonti
Mitochondrial homoplasmy, which is maintained by strictly maternal inheritance and a series of bottlenecks, is thought to be an adaptive condition for metazoans. Doubly uniparental inheritance (DUI) is a unique mode of mitochondrial transmission found in bivalve species, in which two distinct mitochondrial genome (mtDNA) lines are present, one inherited through eggs (F) and one through sperm (M). During development, the two lines segregate in a sex- and tissue-specific manner: females lose M during embryogenesis,...

Data from: Modelling habitat distributions for multiple species using phylogenetics

Guillaume Guénard, Gabriel Lanthier, Simonne Harvey-Lavoie, Camille Macnaughton, Caroline Senay, Michel Lapointe, Pierre Legendre & Daniel Boisclair
In this paper, we describe an empirical approach to model community structure using phylogenetic signals. That approach combines information about the species (i.e. traits and phylogeny) with information about the habitat (i.e. environmental conditions and spatial distribution of sampling sites) and their interactions to predict the species responses (e.g. the local densities). As an application, we use the approach to model fish densities in rivers. In the model, the different species and size classes were...

Data from: A new generic system for the pantropical Caesalpinia group (Leguminosae)

Edeline Gagnon, Anne Bruneau, Colin E. Hughes, Luciano Paganucci De Queiroz, Gwilym P. Lewis & Luciano De Queiroz
The Caesalpinia group is a large pantropical clade of ca. 205 species in subfamily Caesalpinioideae (Leguminosae) in which generic delimitation has been in a state of considerable flux. Here we present new phylogenetic analyses based on five plastid and one nuclear ribosomal marker, with dense taxon sampling including 172 (84%) of the species and representatives of all previously described genera in the Caesalpinia group. These analyses show that the current classification of the Caesalpinia group...

Recovery from infection is more likely to favor the evolution of migration than social escape from infection

Allison Shaw & Sandra Binning
1. Pathogen and parasite infections are increasingly recognized as powerful drivers of animal movement, including migration. Yet, infection-related migration benefits can result from a combination of environmental and/or social conditions, which can be difficult to disentangle. 2. Here, we focus on two infection-related mechanisms that can favor migration: moving to escape versus recover from infection. By directly comparing the evolution of migration in response to each mechanism, we can evaluate the likely importance of changing...

Data from: Greater root phosphatase activity in nitrogen-fixing rhizobial but not actinorhizal plants with declining phosphorus availability

Guochen Kenny Png, Benjamin L. Turner, Felipe E. Albornoz, Patrick E. Hayes, Hans Lambers & Etienne Laliberté
1. The abundance of nitrogen (N)-fixing plants in ecosystems where phosphorus (P) limits plant productivity poses a paradox because N fixation entails a high P cost. One explanation for this paradox is that the N-fixing strategy allows greater root phosphatase activity to enhance P acquisition from organic sources, but evidence to support this contention is limited. 2. We measured root phosphomonoesterase (PME) activity of 10 N-fixing species, including rhizobial legumes and actinorhizal Allocasuarina species, and...

Data from: Molecular evolution of the proopiomelanocortin system in Barn owl species

Karin Löw, Anne-Lyse Ducrest, Luis San-Jose, Céline Simon, Vera Uva, Nabil Seidah, Antonella Pasquato, Stefan Kunz & Alexandre Roulin
Examination of genetic polymorphisms in outbred wild-living species provides insights into the evolution of complex systems. In higher vertebrates, the proopiomelanocortin (POMC) precursor gives rise to α-, β-, and γ-melanocyte-stimulating hormones (MSH), which are involved in numerous physiological aspects. Genetic defects in POMC are linked to metabolic disorders in humans and animals. In the present study, we undertook an evolutionary genetics approach complemented with biochemistry to investigate the functional consequences of genetic polymorphisms in the...

Data from: A revised sectional classification of Plukenetia L. (Euphorbiaceae, Acalyphoideae) with four new species from South America

Warren M. Cardinal-McTeague & Lynn J. Gillespie
Abstract—We present a phylogenetic classification for Plukenetia (Euphorbiaceae, Acalyphoideae) based on morphology and molecular phylogenetic studies using nuclear (ETS, ITS, KEA1 introns 11 and 17, TEB exon 17) and plastid (matK, ndhF, psbA-trnH) DNA data. Plukenetia comprises 25 species divided into six sections, with three new sections and four new species described here. The circumscription of Plukenetia is unaltered from recent treatments and we continue to recognize Romanoa as distinct. The sections of Plukenetia correspond...

Infection state can affect host migratory decisions

Naven Narayanan Venkatanarayanan, Allison K. Shaw & Sandra Ann Binning
Organisms across a wide range of taxa use migration as a strategy to avoid, reduce or recover from parasitic infection. Previous work has identified three different processes by which migration can help reduce infection risk and/or costs: migratory escape from infection, migratory culling of infected individuals, and migratory recovery from infection. However, most theoretical modelling of host migration in response to infection assumes that individuals have a single strategy during both infected and susceptible states,...

Data from: Greater pollination generalization is not associated with reduced constraints on corolla shape in Antillean plants

Simon Joly, François Lambert, Hermine Alexandre, Julien Clavel, Étienne Léveillé-Bourret & John L. Clark
Flowers show important structural variation as reproductive organs but the evolutionary forces underlying this diversity are still poorly understood. In animal-pollinated species, flower shape is strongly fashioned by selection imposed by pollinators, which is expected to vary according to guilds of effective pollinators. Using the Antillean subtribe Gesneriinae (Gesneriaceae), we tested the hypothesis that pollination specialists pollinated by one functional type of pollinator have maintained more similar corolla shapes through time due to more constant...

Data from: Paleolimnological assessment of wildfire-derived atmospheric deposition of trace metal(loid)s and major ions to subarctic lakes (Northwest Territories, Canada)

John Chételat, Nicolas Pelletier, Olivier Blarquez & Jesse Vermaire
Wildfires release terrestrial elements to the atmosphere as aerosols, and these events are becoming more frequent and intense in the Arctic boreal forest as the climate is warming. We quantified the impact of atmospheric deposition of aerosols from local wildfires on metal(loid) fluxes using macroscopic charcoal accumulation rates, historical fire mapping, and element concentrations in 210Pb‐dated lake sediment from five subarctic lakes with small catchments. Lake sediments showed small but significant increases in fluxes (median...

Data from: Differing patterns of stress and craving across the day in moderate-heavy alcohol consumers during their typical drinking routine and an imposed period of alcohol abstinence

Rhiannon E. Mayhugh, W. Jack Rejeski, Meredith R. Petrie, Paul J. Laurienti & Lise Gauvin
Background: Stress is a known factor related to alcohol use. However, how the relationship between alcohol craving and stress varies across the day is not fully understood. As craving is a consistent predictor of alcohol use disorder (AUD), understanding stress and craving patterns across the day in routine, non-dependent, moderate-heavy alcohol consumers may help in understanding those who may be vulnerable to transitioning into AUD. Method: Moderate-heavy drinkers were recruited from the local community (n=32)...

Data from: Fast formation of a supramolecular ion gel/solvoplastic elastomer with excellent stretchability

ShiShun Bai, Xin Wang, Jaana Vapaavuori & Xianru He
This study describes a simple yet efficient approach for the preparation of an ionic gel that is also elastomeric in its solid state bulk form. A series of poly(2-(Diethylamino)ethyl methacrylate-co-Lauryl methacrylate) P(DMAEMA-co-LMA) copolymer were synthesized first by radical polymerization. Quaternization of the PDMAEMA component in THF enables the formation of supramolecular network, gave rise to an ion gel. An elastomer with an elongation at break of over 600 % was obtained from the gel. The...

Additional file 8 of Methylome and transcriptome data integration reveals potential roles of DNA methylation and candidate biomarkers of cow Streptococcus uberis subclinical mastitis

Mengqi Wang, Nathalie Bissonnette, Mario Laterrière, Pier-Luc Dudemaine, David Gagné, Jean-Philippe Roy, Xin Zhao, Marc-André Sirard & Eveline M. Ibeagha-Awemu
Additional file 8: Table S3. The list of differentially methylated cytosines (DMCs) in the context of CpG, CHG and CHH.

Additional file 8 of Methylome and transcriptome data integration reveals potential roles of DNA methylation and candidate biomarkers of cow Streptococcus uberis subclinical mastitis

Mengqi Wang, Nathalie Bissonnette, Mario Laterrière, Pier-Luc Dudemaine, David Gagné, Jean-Philippe Roy, Xin Zhao, Marc-André Sirard & Eveline M. Ibeagha-Awemu
Additional file 8: Table S3. The list of differentially methylated cytosines (DMCs) in the context of CpG, CHG and CHH.

Additional file 1 of Investigation of the causal relationship between ALS and autoimmune disorders: a Mendelian randomization study

Paria Alipour, Konstantin Senkevich, Jay P. Ross, Dan Spiegelman, Despoina Manousaki, Patrick A. Dion & Guy A. Rouleau
Additional file 1: Figure S1. Funnel plots and LOO plots which detect outlier SNPs in RA and CD. Figure S2. Scatter plots showing the effect of liability to ALS on risk of autoimmune disorders. Table S1. Sensitivity analysis, heterogeneity, and pleiotropy, investigating MR assumption violation. Table S2. Sensitivity analysis, heterogeneity, and pleiotropy, investigating MR reverse assumption violation. Code used in this study includes all the code used to produce all the results in this paper.

Additional file 16 of Methylome and transcriptome data integration reveals potential roles of DNA methylation and candidate biomarkers of cow Streptococcus uberis subclinical mastitis

Mengqi Wang, Nathalie Bissonnette, Mario Laterrière, Pier-Luc Dudemaine, David Gagné, Jean-Philippe Roy, Xin Zhao, Marc-André Sirard & Eveline M. Ibeagha-Awemu
Additional file 16: Table S11. The results of functional enrichment differentially methylated and expressed genes (MetGDE genes).

Additional file 17 of Methylome and transcriptome data integration reveals potential roles of DNA methylation and candidate biomarkers of cow Streptococcus uberis subclinical mastitis

Mengqi Wang, Nathalie Bissonnette, Mario Laterrière, Pier-Luc Dudemaine, David Gagné, Jean-Philippe Roy, Xin Zhao, Marc-André Sirard & Eveline M. Ibeagha-Awemu
Additional file 17: Table S12. The cluster of functional annotations enriched by differential methylated and expressed genes (MetGDE genes).

Additional file 6 of A longitudinal census of the bacterial community in raw milk correlated with Staphylococcus aureus clinical mastitis infections in dairy cattle

Soyoun Park, Dongyun Jung, Ianina Altshuler, Daryna Kruban, Simon Dufour & Jennifer Ronholm
Additional file 6: Table S5. Bacterial species/strains and their relative abundance (%) found in three milk samples from the shotgun metagenomic sequneces

Additional file 1 of Tau seeding in cases of multiple sclerosis

Michael S. LaCroix, Hilda Mirbaha, Ping Shang, Stephanie Zandee, Chan Foong, Alexandre Prat, Charles L. White, Olaf Stuve & Marc I. Diamond
Addtional file 1: Table 1: MS subject characteristics.

Academic Challenges in Developmental Coordination Disorder: A Systematic Review and Meta-Analysis

Eliane Dionne, Marie-Ève Bolduc, Annette Majnemer, Miriam H. Beauchamp & Marie Brossard-Racine
Developmental Coordination Disorder (DCD) is a chronic condition affecting motor coordination in daily activities. While motor difficulties are well documented in this population, it is unclear how frequent and to what extent academic activities are affected. This systematic review aims to comprehensively summarize the knowledge regarding the prevalence and extent of academic difficulties in reading, writing and mathematics in school-aged children with DCD. Two independent reviewers analyzed original studies on academic difficulties in school-aged children...

Wheelchair service provision education for healthcare professional students, healthcare personnel and educators across low- to high-resourced settings: a scoping review

Yohali Burrola-Mendez, Sureshkumar Kamalakannan, Paula W. Rushton, Selsabil-A. Bouziane, Ed Giesbrecht, R. Lee Kirby, Rosemary J. Gowran, David F. Rusaw, Tomasz Tasiemski, Mary Goldberg, Marco Tofani, Jessica P. Pedersen & Jon Pearlman
This review aimed to collate and summarize available research literature about wheelchair service provision education available to healthcare professional students, healthcare personnel and educators across low- to high-resourced settings. The Joanna Briggs Institute methodological steps for scoping reviews were followed. Included studies were mainly sourced from Medline, Embase, CINAHL, Scopus, Academic Search Complete and ProQuest. Independent title, abstract and full-text screening with defined inclusion and exclusion criteria was performed. All screening and extraction were performed...

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Affiliations

  • University of Montreal
    146
  • McGill University
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  • Chinese Academy of Medical Sciences & Peking Union Medical College
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  • Third Hospital of Hebei Medical University
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  • Chinese Academy of Inspection and Quarantine
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