How do microbiota associated with an invasive seaweed vary across scales?
How do microbiota associated with an invasive seaweed vary across scales?
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DOI：
10.1111/mec.15470
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发表时间：
2020-06-13
影响因子：
4.9
通讯作者：
Weinberger, Florian
中科院分区：
文献类型：
--
作者：
Bonthond, Guido;Bayer, Till;Weinberger, Florian
社区是由规模依赖过程形成的。为了研究不同尺度下微生物群落的多样性和变化，入侵和广泛分布的海藻--虫叶琼脂藻提供了一个独特的机会。我们的特点是亲和真核生物社区与此holobiont在其已知的分布范围，这在北方半球延伸。我们的数据显示，在holobiont的社区组成和多样性在当地不同，但也较大的地理尺度。虽然过程在局部尺度上起作用（即，在种群内）是相关微生物群落的主要结构驱动因素，群落组成的变化也取决于在更大地理尺度上作用的过程。有趣的是，最大的分析规模（即，天然和非天然范围）解释了预测功能组的流行率的变化，这可能表明在入侵过程中发生了微生物群的功能转变。虽然在局部范围内微生物群的高变异性支持A.为了使蚯蚓成为通才寄主，我们还鉴定了一些核心类群。这些地理上独立的holobiont成员意味着共同引入特定的微生物群可能会进一步促进入侵过程。
Communities are shaped by scale dependent processes. To study the diversity and variation of microbial communities across scales, the invasive and widespread seaweedAgarophyton vermiculophyllumpresents a unique opportunity. We characterized pro- and eukaryotic communities associated with this holobiont across its known distribution range, which stretches over the northern hemisphere. Our data reveal that community composition and diversity in the holobiont vary at local but also larger geographic scales. While processes acting at the local scale (i.e., within population) are the main structuring drivers of associated microbial communities, changes in community composition also depend on processes acting at larger geographic scales. Interestingly, the largest analysed scale (i.e., native and non-native ranges) explained variation in the prevalence of predicted functional groups, which could suggest a functional shift in microbiota occurred over the course of the invasion process. While high variability in microbiota at the local scale supportsA. vermiculophyllumto be a generalist host, we also identified a number of core taxa. These geographically independent holobiont members imply that cointroduction of specific microbiota may have additionally promoted the invasion process.