The European Drosophila Population Genomics Consortium (DrosEU).
Department of Evolutionary Biology and Animal Ecology, Biology I, University of Freiburg, Freiburg im Breisgau, Germany.
Environ Microbiol Rep. 2020 Apr;12(2):220-228. doi: 10.1111/1758-2229.12826. Epub 2020 Feb 8.
The relative importance of host control, environmental effects and stochasticity in the assemblage of host-associated microbiomes is being debated. We analysed the microbiome among fly populations that were sampled across Europe by the European Drosophila Population Genomics Consortium (DrosEU). In order to better understand the structuring principles of the natural D. melanogaster microbiome, we combined environmental data on climate and food-substrate with dense genomic data on host populations and microbiome profiling. Food-substrate, temperature, and host population structure correlated with microbiome structure. Microbes, whose abundance was co-structured with host populations, also differed in abundance between flies and their substrate in an independent survey. This finding suggests common, host-related structuring principles of the microbiome on different spatial scales.
宿主控制、环境效应和随机性在宿主相关微生物组组装中的相对重要性仍存在争议。我们分析了欧洲果蝇种群基因组学联合会（DrosEU）在欧洲各地采样的果蝇种群中的微生物组。为了更好地理解自然果蝇微生物组的结构原则，我们将气候和食物基质的环境数据与宿主种群和微生物组分析的密集基因组数据相结合。食物基质、温度和宿主种群结构与微生物组结构相关。与宿主种群共同构建丰度的微生物，在独立调查中也在不同的蝇及其基质之间存在丰度差异。这一发现表明，在不同的空间尺度上，微生物组存在共同的、与宿主相关的结构原则。
