Metatranscriptomic data reveal the effect of different community properties on multifunctional redundancy
Metatranscriptomic data reveal the effect of different community properties on multifunctional redundancy
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DOI：
10.1111/mec.14409
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发表时间：
2017-12-01
影响因子：
4.9
通讯作者：
Juergens, Klaus
中科院分区：
文献类型：
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作者：
Beier, Sara;Shen, Dandan;Juergens, Klaus
功能冗余 (FR) 的评估对于理解群落结构-功能关系至关重要，因为 FR 可以根据群落组成的变化缓冲群落的功能表现。我们引入了一种新颖的基于元转录组的方法来量化 FR，该方法可以解决多功能方面的问题。原核生物的 FR 在暴露于盐度变化后的水样中进行排名。对于许多类群之间共享大部分广泛功能的功能类别，FR 高于包含许多狭窄功能的功能类别。此外，群落特征对 FR 的影响比环境条件更大。该指标还允许估计选定的类群之间的 FR，并且如果群落在相似的环境条件下生长，则更密切相关的生物之间的 FR 较高。总体而言，我们的数据一方面揭示了功能多样性的显着影响，另一方面也揭示了个体群落成员的特征对 FR 的影响，尤其是在那些成员对盐度变化更敏感的群落中。
The assessment of functional redundancy (FR) is essential to understand community structure-function relationships because FR buffers the functional performance of communities against changes in community composition. We introduce a novel metatranscriptome-based approach to quantify FR, which permits multifunctional aspects to be addressed. FR among prokaryotes was ranked in water samples after exposure to changing salinity. FR was higher for functional categories with mostly broad functions shared among many taxa than for functional categories containing many narrow functions. Furthermore, community characteristics had a higher impact on FR than environmental conditions. The metric also allows FR to be estimated between selected groups of taxa, and FR was high between more closely related organisms if communities were grown in similar environmental conditions. Overall, our data revealed a pronounced influence of functional diversity on the one hand but also the characteristics of individual community members on FR, which was specifically high in those communities whose members were more sensitive to salinity changes.