5 Works

Data from: Dynamics of the continent-wide spread of a Drosophila defensive symbiont

Sarah N. Cockburn, Tamara S. Haselkorn, Phineas T. Hamilton, Elizabeth Landzberg, John Jaenike & Steve J. Perlman
Facultative symbionts can represent important sources of adaptation for their insect hosts and thus have the potential for rapid spread. Drosophila neotestacea harbors a heritable symbiont, Spiroplasma, that confers protection against parasitic nematodes. We previously found a cline in Spiroplasma prevalence across central Canada, ending abruptly at the Rocky Mountains. Resampling these populations nine years later revealed that Spiroplasma had increased substantially across the region, resembling a Fisherian wave of advance. Associations between Spiroplasma infection...

Data from: Katian (Upper Ordovician) conodonts from Wales

Annalisa Ferretti, Stig M. Bergstrom & Christopher R. Barnes
Middle and Upper Katian conodonts are previously known in the British Isles from relatively small collections obtained from a few localities. The present study is mainly based on 17 samples containing more than 17,000 conodont elements from an approximately 14 m thick succession of the Sholeshook Limestone in a road cut near Whitland, South Wales that yielded a diverse fauna of more than 40 taxa. It is dominated by representatives of Amorphognathus, Aphelognathus/Plectodina, and Eocarniodus...

Data from: Individual-based measurements of light intensity provide new insights into the effects of artificial light at night on daily rhythms of urban-dwelling songbirds

Davide M. Dominoni, Esther O. Carmona-Wagner, Michaela Hofmann, Bart Kranstauber & Jesko Partecke
1. The growing interest in the effects of light pollution on daily and seasonal cycles of animals has led to a boost of research in recent years. In birds, it has been hypothesized that artificial light at night can affect daily aspects of behaviour, but one caveat is the lack of knowledge about the light intensity that wild animals, such as birds, are exposed to during the night. 2. Organisms have naturally evolved daily rhythms...

Data from: A 34K SNP genotyping array for Populus trichocarpa: Design, application to the study of natural populations and transferability to other Populus species

Armando Geraldes, Steve P. DiFazio, Gancho T. Slavov, Priya Ranjan, Wellington Muchero, Jan Hannemann, Lee E. Gunter, Ann M. Wymore, Christopher J. Grassa, Nima Farzaneh, Ilga Porth, Athena D. Mckown, Oleksandr Skyba, Eryang Li, Miki Fujita, Jaroslav Klápště, Joel Martin, Wendy Schackwitz, Christa Pennacchio, Daniel Rokhsar, Michael C. Friedmann, Geoffrey O. Wasteneys, Robert D. Guy, Yousry A. El-Kassaby, Shawn D. Mansfield … & Gerald A. Tuskan
Genetic mapping of quantitative traits requires genotypic data for large numbers of markers in many individuals. For such studies, the use of large single nucleotide polymorphism (SNP) genotyping arrays still offers the most cost-effective solution. Herein we report on the design and performance of a SNP genotyping array for Populus trichocarpa (black cottonwood). This genotyping array was designed with SNPs pre-ascertained in 34 wild accessions covering most of the species latitudinal range. We adopted a...

Data from: Transcriptional responses in a Drosophila defensive symbiosis

Phineas T. Hamilton, Jong S. Leong, Ben F. Koop & Steve J. Perlman
Inherited symbionts are ubiquitous in insects and can have important consequences for the fitness of their hosts. Many inherited symbionts defend their hosts against parasites or other natural enemies; however, the means by which most symbionts confer protection is virtually unknown. We examine the mechanisms of defence in a recently discovered case of symbiont-mediated protection, where the bacterial symbiont Spiroplasma defends the fly Drosophila neotestacea from a virulent nematode parasite, Howardula aoronymphium. Using quantitative PCR...

Registration Year

  • 2013

Resource Types

  • Dataset


  • University of Victoria
  • Max Planck Institute for Ornithology
  • The Ohio State University
  • West Virginia University
  • Oak Ridge National Laboratory
  • University of Tennessee at Knoxville
  • University of Rochester
  • Monash University
  • University of British Columbia
  • Joint Genome Institute