Geographical Distribution and Diversity of Bacteria Associated with Natural Populations of Drosophila melanogaster
- 1 June 2007
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 73 (11), 3470-3479
- https://doi.org/10.1128/aem.02120-06
Abstract
Drosophila melanogaster is one of the most widely used model systems in biology. However, little is known about its associated bacterial community. As a first step towards understanding these communities, we compared bacterial 16S rRNA gene sequence libraries recovered from 11 natural populations of adult D. melanogaster . Bacteria from these sequence libraries were grouped into 74 distinct taxa, spanning the phyla Proteobacteria , Bacteroidetes , and Firmicutes , which were unevenly spread across host populations. Summed across populations, the distribution of abundance of genera was closely fit by a power law. We observed differences among host population locations both in bacterial community richness and in composition. Despite this significant spatial variation, no relationship was observed between species richness and a variety of abiotic factors, such as temperature and latitude. Overall, bacterial communities associated with adult D. melanogaster hosts are diverse and differ across host populations.Keywords
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