期刊
MOLECULAR ECOLOGY
卷 21, 期 20, 页码 5138-5150出版社
WILEY
DOI: 10.1111/j.1365-294X.2012.05759.x
关键词
Aeromonas; Asaia; gut bacteria; natural populations of mosquitoes; pyrosequencing
资金
- Royal Society
- Darwin Trust of Edinburgh
- MRC
- Genetics Society Heredity Fieldwork Grant
- Royal Entomological Outreach Grant
- Chibnall Travel Funds
The mosquito midgut is a hostile environment that vector-borne parasites must survive to be transmitted. Commensal bacteria in the midgut can reduce the ability of mosquitoes to transmit disease, either by having direct anti-parasite effects or by stimulating basal immune responses of the insect host. As different bacteria have different effects on parasite development, the composition of the bacterial community in the mosquito gut is likely to affect the probability of disease transmission. We investigated the diversity of mosquito gut bacteria in the field using 454 pyrosequencing of 16S rRNA to build up a comprehensive picture of the diversity of gut bacteria in eight mosquito species in this population. We found that mosquito gut typically has a very simple gut microbiota that is dominated by a single bacterial taxon. Although different mosquito species share remarkably similar gut bacteria, individuals in a population are extremely variable and can have little overlap in the bacterial taxa present in their guts. This may be an important factor in causing differences in disease transmission rates within mosquito populations.
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