Drosophila Genotype Influences Commensal Bacterial Levels.

Host genotype can influence the composition of the commensal bacterial community in some organisms. Composition, however, is only one parameter describing a microbial community. Here, we test whether a second parameter-abundance of bacteria-is a heritable trait by quantifying the presence of four co...

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Main Authors: Angela M Early, Niroshan Shanmugarajah, Nicolas Buchon, Andrew G Clark
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5240971?pdf=render
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author Angela M Early
Niroshan Shanmugarajah
Nicolas Buchon
Andrew G Clark
author_facet Angela M Early
Niroshan Shanmugarajah
Nicolas Buchon
Andrew G Clark
author_sort Angela M Early
collection DOAJ
description Host genotype can influence the composition of the commensal bacterial community in some organisms. Composition, however, is only one parameter describing a microbial community. Here, we test whether a second parameter-abundance of bacteria-is a heritable trait by quantifying the presence of four commensal bacterial strains within 36 gnotobiotic inbred lines of Drosophila melanogaster. We find that D. melanogaster genotype exerts a significant effect on microbial levels within the fly. When introduced as monocultures into axenic flies, three of the four bacterial strains were reliably detected within the fly. The amounts of these different strains are strongly correlated, suggesting that the host regulates commensal bacteria through general, not bacteria-specific, means. While the correlation does not appear to be driven by simple variation in overall gut dimensions, a genetic association study suggests that variation in commensal bacterial load may largely be attributed to physical aspects of host cell growth and development.
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spelling doaj.art-8c9ddde1abbc4968aec5ead9196bbf122022-12-21T23:28:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01121e017033210.1371/journal.pone.0170332Drosophila Genotype Influences Commensal Bacterial Levels.Angela M EarlyNiroshan ShanmugarajahNicolas BuchonAndrew G ClarkHost genotype can influence the composition of the commensal bacterial community in some organisms. Composition, however, is only one parameter describing a microbial community. Here, we test whether a second parameter-abundance of bacteria-is a heritable trait by quantifying the presence of four commensal bacterial strains within 36 gnotobiotic inbred lines of Drosophila melanogaster. We find that D. melanogaster genotype exerts a significant effect on microbial levels within the fly. When introduced as monocultures into axenic flies, three of the four bacterial strains were reliably detected within the fly. The amounts of these different strains are strongly correlated, suggesting that the host regulates commensal bacteria through general, not bacteria-specific, means. While the correlation does not appear to be driven by simple variation in overall gut dimensions, a genetic association study suggests that variation in commensal bacterial load may largely be attributed to physical aspects of host cell growth and development.http://europepmc.org/articles/PMC5240971?pdf=render
spellingShingle Angela M Early
Niroshan Shanmugarajah
Nicolas Buchon
Andrew G Clark
Drosophila Genotype Influences Commensal Bacterial Levels.
PLoS ONE
title Drosophila Genotype Influences Commensal Bacterial Levels.
title_full Drosophila Genotype Influences Commensal Bacterial Levels.
title_fullStr Drosophila Genotype Influences Commensal Bacterial Levels.
title_full_unstemmed Drosophila Genotype Influences Commensal Bacterial Levels.
title_short Drosophila Genotype Influences Commensal Bacterial Levels.
title_sort drosophila genotype influences commensal bacterial levels
url http://europepmc.org/articles/PMC5240971?pdf=render
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