Environmental conditions and neutral processes shape the skin microbiome of European catfish (Silurus glanis) populations of Southwestern France
Environmental conditions and neutral processes shape the skin microbiome of European catfish (Silurus glanis) populations of Southwestern France
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DOI：
10.1111/1758-2229.12774
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发表时间：
2019-08-01
影响因子：
3.3
通讯作者：
Bouletreau, Stephanie
中科院分区：
文献类型：
--
作者：
Chiarello, Marlene;Paz-Vinas, Ivan;Bouletreau, Stephanie
硬骨鱼与不同的微生物群落相互作用，对宿主适应性起着至关重要的作用。虽然肠道微生物组已被广泛研究，但皮肤微生物组一直被忽视。具体而言，没有评估宿主和环境因素对微生物组变异性的相对影响以及形成鱼皮微生物组的中性过程。在这里，我们评估了在法国西南部的四个地点采样的欧洲鲶鱼（Silurus glanis）的皮肤微生物组。我们评估了个体特征（体型和遗传背景）、局部环境和中性过程在塑造皮肤微生物组中的相对作用。鲶鱼皮肤微生物组组成与先前研究的具有高丰度的γ-变形菌门和拟杆菌门的其他淡水鱼类物种不同。我们发现鲶鱼个体基因型和体型对其相关皮肤微生物组的结构没有影响。地理位置是最好的鲶鱼皮肤微生物组结构预测因子，以及微生物组组装的中性模型。
Teleost fishes interact with diverse microbial communities, playing crucial functions for host fitness. While gut microbiome has been extensively studied, skin microbiome has been overlooked. Specifically, there is no assessment of the relative impact of host and environmental factors on microbiome variability as well as neutral processes shaping fish skin microbiome. Here, we assessed the skin microbiome of a Siluriforme, the European catfish (Silurus glanis) sampled in four sites located in Southwestern France. We assessed the relative roles of individual features (body size and genetic background), local environment and neutral processes in shaping skin microbiome. Catfish skin microbiome composition was distinct to that of other freshwater fish species previously studied with high abundances of Gammaproteobacteria and Bacteroidetes. We found no effect of catfish individual genotype and body size on the structure of its associated skin microbiome. Geographical location was the best catfish skin microbiome structure predictor, together with neutral models of microbiome assembly.