10.5061/DRYAD.62294
Cockburn, Sarah N.
University of Victoria
Haselkorn, Tamara S.
University of Rochester
Hamilton, Phineas T.
University of Victoria
Landzberg, Elizabeth
University of Rochester
Jaenike, John
University of Rochester
Perlman, Steve J.
University of Victoria
Data from: Dynamics of the continent-wide spread of a Drosophila defensive
symbiont
Dryad
dataset
2013
Howardula
Wolbachia
Symbiosis
Fisherian wave of advance
Spiroplasma
2013-03-19T15:20:32Z
2013-03-19T15:20:32Z
en
https://doi.org/10.1111/ele.12087
117317 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
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 and host mitochondrial DNA indicate that the increase was due to
local increase of Spiroplasma-infected flies. Finally, we detected
Spiroplasma west of the Rocky Mountains for the first time and showed that
defense against nematodes occurs in flies with a western genetic
background. Because nematode infection is common throughout D.
neotestacea’s range, we expect Spiroplasma to spread to the Pacific coast.
Cockburn_etal_All_DataThis workbook contains three sheets: 1) experimental
data measuring the effects of eastern and western Spiroplasma strains on
Howardula parasitism and 2 & 3) Mitochondrial haplotypes of wild
Drosophila neotestacea collected in central and western
Canada.All_Data.xls
North America