4 Works

Data from: Infectious adaptation: potential host range of a defensive endosymbiont in Drosophila

Tamara S. Haselkorn, Sarah N. Cockburn, Phineas T. Hamilton, Steve. J Perlman & John Jaenike
Maternally transmitted symbionts persist over macroevolutionary time scales by undergoing occasional lateral transfer to new host species. To invade a new species, a symbiont must survive and reproduce in the new host, undergo maternal transmission, and confer a selective benefit sufficient to overcome losses due to imperfect maternal transmission. Drosophila neotestacea is naturally infected with a strain of Spiroplasma that restores fertility to nematode-parasitized females, which are otherwise sterilized by parasitism. We experimentally transferred Spiroplasma...

Data from: The genetic basis of behavioral isolation between Drosophila mauritiana and D. sechellia

Daniel R. McNabney
Understanding how species form is a fundamental question in evolutionary biology. Identifying the genetic bases of barriers that prevent gene flow between species provides insight into how speciation occurs. Here I analyze a poorly understood reproductive isolating barrier, prezygotic reproductive isolation. I perform a genetic analysis of prezygotic isolation between two closely related species of Drosophila, D. mauritiana and D. sechellia. I first confirm the existence of strong behavioral isolation between D. mauritiana females and...

Data from: Cis- and trans-acting genetic factors contribute to heterogeneity in the rate of crossing over between the Drosophila simulans clade species

M. Victoria Cattani, Sarah B. Kingan & Daven C. Presgraves
In the genus Drosophila, variation in recombination rates has been found within and between species. Genetic variation for both cis- and trans-acting factors has been shown to affect recombination rates within species, but little is known about the genetic factors that affect differences between species. Here we estimate rates of crossing over for seven segments that tile across the euchromatic length of the X chromosome in the genetic backgrounds of three closely related Drosophila species....

Data from: Loss of reproductive parasitism following transfer of male-killing Wolbachia to Drosophila melanogaster and Drosophila simulans

Kostas Bourtzis, Zoe Veneti, Sofia Zabalou, George Papafotiou, Charalampos Paraskevopoulos, Savvas Pattas, Ioannis Livadaras, George Markakis, Jeremy Herren & John Jaenike
Wolbachia manipulates insect host biology through a variety of means that result in elevated fitness of infected females, enhancing its own transmission. A Wolbachia strain (wInn) naturally infecting D. innubila induces male-killing, while native strains of D. melanogaster and D. simulans usually induce cytoplasmic incompatibility (CI). In this study, we transferred wInn to D. melanogaster and D. simulans by embryonic microinjection, expecting conservation of the male-killing phenotype to the novel hosts, which are more suitable...

Registration Year

  • 2012

Resource Types

  • Dataset


  • University of Rochester
  • Alexander Fleming Biomedical Sciences Research Center
  • University of Ioannina
  • Technological Educational Institute of Crete
  • University of Victoria
  • Foundation for Research and Technology Hellas