9 Works

Data from: Neutral and adaptive drivers of microgeographic genetic divergence within continuous populations: the case of the Neotropical tree Eperua falcata (Aubl.)

Louise Brousseau, Matthieu Foll, Caroline Scotti-Saintagne & Ivan Scotti
Background: In wild plant populations, genetic divergence within continuous stands is common, sometimes at very short geographical scales. While restrictions to gene flow combined with local inbreeding and genetic drift may cause neutral differentiation among subpopulations, microgeographical variations in environmental conditions can drive adaptive divergence through natural selection at some targeted loci. Such phenomena have recurrently been observed in plant populations occurring across sharp environmental boundaries, but the interplay between selective processes and neutral genetic...

Data from: How a haemosporidian parasite of bats gets around: the genetic structure of a parasite, vector and host compared

Fardo Witsenburg, Laura Clément, Ludovic Dutoit, Adrià López-Baucells, Jorge Palmeirim, Dino Scaravelli, Martin Ševčík, Nicolas Salamin, Jérôme Goudet, Philippe Christe & Igor Pavlinić
Parasite population structure is often thought to be largely shaped by that of its host. In the case of a parasite with a complex life cycle, two host species, each with their own patterns of demography and migration, spread the parasite. However, the population structure of the parasite is predicted to resemble only that of the most vagile host species. In this study we tested this prediction in the context of a vector-transmitted parasite. We...

Data from: On the relative roles of background selection and genetic hitchhiking in shaping human cytomegalovirus genetic diversity

Nicholas Renzette, Timothy F. Kowalik & Jeffrey D. Jensen
A central focus of population genetics has been examining the contribution of selective and neutral processes in shaping patterns of intraspecies diversity. In terms of selection specifically, surveys of higher organisms have shown considerable variation in the relative contributions of background selection and genetic hitchhiking in shaping the distribution of polymorphisms, though these analyses have rarely been extended to bacteria and viruses. Here, we study the evolution of a ubiquitous, viral pathogen, human cytomegalovirus (HCMV),...

Data from: The population genomics of rapid adaptation: disentangling signatures of selection and demography in white sands lizards

Stefan Laurent, Susanne P. Pfeifer, Matthew Settles, Samuel S. Hunter, Kayla M. Hardwick, Louise Ormond, Vitor C. Sousa, Jeffrey D. Jensen, Erica Bree Rosenblum & Matthew L. Settles
Understanding the process of adaptation during rapid environmental change remains one of the central focal points of evolutionary biology. The recently formed White Sands system of southern New Mexico offers an outstanding example of rapid adaptation, with a variety of species having rapidly evolved blanched forms on the dunes that contrast with their close relatives in the surrounding dark soil habitat. In this study, we focus on two of the White Sands lizard species, Sceloporus...

Data from: Spatiotemporal dynamics of Puumala hantavirus associated with its rodent host, Myodes glareolus

Vanessa Weber De Melo, Hanan Sheik Ali, Jona Freise, Denise Kühnert, Sandra Essbauer, Marc Mertens, Konrad M. Wanka, Stephan Drewes, Rainer G. Ulrich, Gerald Heckel & Hanan Sheikh Ali
Many viruses significantly impact human and animal health. Understanding the population dynamics of these viruses and their hosts can provide important insights for epidemiology and virus evolution. Puumala virus (PUUV) is a European hantavirus that may cause regional outbreaks of hemorrhagic fever with renal syndrome in humans. Here, we analyzed the spatiotemporal dynamics of PUUV circulating in local populations of its rodent reservoir host, the bank vole (Myodes glareolus) during eight years. Phylogenetic and population...

Data from: Inferring the age of a fixed beneficial allele

Louise Ormond, Matthieu Foll, Gregory B. Ewing, Susanne P. Pfeifer & Jeffrey D. Jensen
Estimating the age and strength of beneficial alleles is central to understanding how adaptation proceeds in response to changing environmental conditions. Several haplotype-based estimators exist for inferring the age of segregating beneficial mutations. Here, we develop an approximate Bayesian based approach that rather estimates these parameters for fixed beneficial mutations in single populations. We integrate a range of existing diversity, site frequency spectrum, haplotype and linkage disequilibrium based summary statistics. We show that for strong...

Data from: The consequences of not accounting for background selection in demographic inference

Gregory B. Ewing & Jeffrey D. Jensen
Recently, there has been increased awareness of the role of background selection (BGS) in both data analysis and modelling advances. However, BGS is still difficult to take into account because of tractability issues with simulations and difficulty with nonequilibrium demographic models. Often, simple rescaling adjustments of effective population size are used. However, there has been neither a proper characterization of how BGS could bias or shift inference when not properly taken into account, nor a...

Data from: Resprouter fraction in Cape Restionaceae assemblages varies with climate and soil type

Rafael O. Wüest, Glenn Litsios, Félix Forest, Christian Lexer, H. Peter Linder, Nicolas Salamin, Niklaus E. Zimmermann & Peter B. Pearman
While fire-induced changes in biodiversity are well documented, less is known about how fire impacts life-history variation and diversity of functional traits that represent distinct strategies for persistence in fire-driven ecosystems. One example is the dichotomy in which ‘resprouter’ species usually survive fires to produce new growth, while ‘reseeder’ species perish and re-establish from seed. Variable relative numbers of reseeder and resprouter species in local assemblages of Restionaceae (Poales) of the Cape Floristic Region (CFR),...

Data from: Phylogeography and support vector machine classification of colour variation in panther chameleons

Djordje Grbic, Suzanne V. Saenko, Toky M. Randriamoria, Adrien Debry, Achille P. Raselimanana & Michel C. Milinkovitch
Lizards and snakes exhibit colour variation of adaptive value for thermoregulation, camouflage, predator avoidance, sexual selection and speciation. Furcifer pardalis, the panther chameleon, is one of the most spectacular reptilian endemic species in Madagascar, with pronounced sexual dimorphism and exceptionally large intraspecific variation in male coloration. We perform here an integrative analysis of molecular phylogeography and colour variation after collecting high-resolution colour photographs and blood samples from 324 F. pardalis individuals in locations spanning the...

Registration Year

  • 2015
    9

Resource Types

  • Dataset
    9

Affiliations

  • Swiss Institute of Bioinformatics
    9
  • University of Lausanne
    2
  • University of Bern
    2
  • University of the Basque Country
    1
  • University of Bologna
    1
  • University of Lisbon
    1
  • Ikerbasque
    1
  • University of Geneva
    1
  • French National Institute for Agricultural Research
    1
  • University of Fribourg
    1