Yeast Communities of Diverse Drosophila Species: Comparison of Two Symbiont Groups in the Same Hosts

被引:121
作者
Chandler, James Angus [1 ,2 ]
Eisen, Jonathan A. [1 ,2 ,3 ,4 ,5 ]
Kopp, Artyom [1 ,2 ]
机构
[1] Univ Calif Davis, Dept Ecol & Evolut, Davis, CA 95616 USA
[2] Univ Calif Davis, Ctr Populat Biol, Davis, CA 95616 USA
[3] Univ Calif Davis, Genome Ctr, Davis, CA 95616 USA
[4] Univ Calif Davis, Sch Med, Dept Med Microbiol & Immunol, Davis, CA 95616 USA
[5] US DOE, Joint Genome Inst, Walnut Creek, CA USA
关键词
ASCOMYCETOUS YEASTS; FOOD PREFERENCES; YOSEMITE REGION; GUT MICROBIOME; SP-NOV; BACTERIAL; EVOLUTION; ECOLOGY; MODEL; DNA;
D O I
10.1128/AEM.01741-12
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The combination of ecological diversity with genetic and experimental tractability makes Drosophila a powerful model for the study of animal-associated microbial communities. Despite the known importance of yeasts in Drosophila physiology, behavior, and fitness, most recent work has focused on Drosophila-bacterial interactions. In order to get a more complete understanding of the Drosophila microbiome, we characterized the yeast communities associated with different Drosophila species collected around the world. We focused on the phylum Ascomycota because it constitutes the vast majority of the Drosophila-associated yeasts. Our sampling strategy allowed us to compare the distribution and structure of the yeast and bacterial communities in the same host populations. We show that yeast communities are dominated by a small number of abundant taxa, that the same yeast lineages are associated with different host species and populations, and that host diet has a greater effect than host species on yeast community composition. These patterns closely parallel those observed in Drosophila bacterial communities. However, we do not detect a significant correlation between the yeast and bacterial communities of the same host populations. Comparative analysis of different symbiont groups provides a more comprehensive picture of host-microbe interactions. Future work on the role of symbiont communities in animal physiology, ecological adaptation, and evolution would benefit from a similarly holistic approach.
引用
收藏
页码:7327 / 7336
页数:10
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