7 Works

Data from: Fine-scale population structure, inbreeding risk and avoidance in a wild insect population

Amanda Bretman, Rolando Rodríguez-Muñoz, Craig Walling, Jon Slate & Tom Tregenza
The ecological and evolutionary importance of fine scale genetic structure within populations is increasingly appreciated. However, available data are largely restricted to wild vertebrates and eusocial insects. In addition there is the expectation that most insects tend to have such large and high density populations and are so mobile that they are unlikely to face inbreeding risks through fine scale population structuring. This has made the growing body of evidence for inbreeding avoidance in insects...

Data from: Heterozygosity-fitness correlations in a migratory bird: an analysis of inbreeding and single-locus effects

Xavier A. Harrison, Stuart Bearhop, Richard Inger, Kendrew Colhoun, Gudmundur A. Gudmundsson, David Hodgson, Graham McElwaine & Tom Tregenza
Studies in a multitude of taxa have described a correlation between heterozygosity and fitness, and usually conclude that this is evidence for inbreeding depression. Here we have used multi-locus heterozygosity estimates from 15 microsatellite markers to show evidence of heterozygosity-fitness correlations (HFCs) in a long-distance migratory bird, the light-bellied Brent goose. We found significant, positive heterozygosity-heterozygosity correlations between random subsets of the markers we employ, and no evidence that a model containing all loci as...

Data from: Connectivity of Caribbean coral populations: complementary insights from empirical and modelled gene flow

Nicola L. Foster, Claire B. Paris, Johnathan T. Kool, Iliana B. Baums, Jamie R. Stevens, Juan A. Sánchez, Carolina Bastidas, Claudia Agudelo, Phillippe Bush, Owen Day, Renata Ferrari, Patricia Gonzalez, Shannon Gore, Reia Guppy, Michael A. McCartney, Croy McCoy, Judith Mendes, Ashwanth Srinivasan, Sascha Steiner, Mark J. A. Vermeij, Ernesto Weil & Peter J. Mumby
Understanding patterns of connectivity among populations of marine organisms is essential for the development of realistic, spatially explicit models of population dynamics. Two approaches, theoretical and empirical population genetic models, have been used to estimate levels of evolutionary connectivity among marine populations but rarely have their potentially-complementary insights been combined. Here, a spatially-realistic Lagrangian model of larval dispersal and a theoretical genetic model are integrated with the most extensive study of gene flow in a...

Data from: Selection experiments reveal trade-offs between swimming and twitching motilities in Pseudomonas aeruginosa

Tiffany B Taylor & Angus Buckling
Bacteria possess a range of mechanisms to move in different environments, and these mechanisms have important direct and correlated impacts on the virulence of opportunistic pathogens. Bacteria use two surface organelles to facilitate motility: a single polar flagellum, and type IV pili, enabling swimming in aqueous habitats and twitching along hard surfaces, respectively. Here, we address whether there are trade-offs between these motility mechanisms, and hence whether different environments could select for altered motility. We...

Data from: Antagonistic responses to natural and sexual selection and the sex-specific evolution of cuticular hydrocarbons in Drosophila simulans

Manmohan D. Sharma, John Hunt & David J. Hosken
Natural and sexual selection are classically thought to oppose one another, and while there is evidence for this, direct experimental demonstrations of this antagonism are largely lacking. Here we assessed the effects of sexual and natural selection on the evolution of cuticular hydrocarbons (CHCs), a character subject to both modes of selection, in Drosophila simulans. Natural selection and sexual selection were manipulated in a fully factorial design, and after 27 generations of experimental evolution the...

Data from: Candidate genes for colour and vision exhibit signals of selection across the pied flycatcher (Ficedula hypoleuca) breeding range

Paula K. Lehtonen, Toni Laaksonen, Aleksandr V. Artemyev, Eugen Belskii, Paul R. Berg, Christiaan Both, Laura Buggiotti, Stanislav Bureš, Malcolm D. Burgess, Andrey V. Bushuev, Indrikis Krams, Juan Moreno, Marko Mägi, Andreas Nord, Jaime Potti, Pierre-Alain Ravussin, Glenn Peter Sætre, Paivi Sirkiä, Wolfgang Winkel & Craig R. Primmer
The role of natural selection in shaping adaptive trait differentiation in natural populations has long been recognized. Determining its molecular basis, however, remains a challenge. Here, we search for signals of selection in candidate genes for colour and its perception in a passerine bird. Pied flycatcher plumage varies geographically in both its structural and pigment-based properties. Both characteristics appear to be shaped by selection. A single-locus outlier test revealed two of fourteen loci to exhibit...

Data from: The genetics of cuticular hydrocarbon profiles in the fruit fly Drosophila simulans

Manmohan D. Sharma, Christopher Mitchell, John Hunt, Tom Tregenza & David J. Hosken
Female mate choice is one mechanism of sexual selection and, provided there is adequate genetic variation in the male traits that are the target of this selection, they will evolve via female choice. Cuticular hydrocarbons (CHCs) are important in Drosophila mate choice, but relatively little is known about the underlying genetic architecture of CHC profiles in Drosophila simulans. Here we used gas chromatography-mass spectrometry to investigate patterns of genetic variation in the CHC profiles of...

Registration Year

  • 2011

Resource Types

  • Dataset


  • University of Exeter
  • Icelandic Institute of Natural History
  • Moscow State University
  • Lund University
  • University of Groningen
  • University of Edinburgh
  • University of Oslo
  • ARC Centre of Excellence For Coral Reef Studies
  • Caribbean Research and Management of Biodiversity Foundation
  • Spanish National Research Council