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. 2016 Dec 13:6:38893.
doi: 10.1038/srep38893.

The biogeography of soil archaeal communities on the eastern Tibetan Plateau

Yu Shi  1 , Jonathan M Adams  2 , Yingying Ni  1 , Teng Yang  1 , Xin Jing  3 , Litong Chen  4 , Jin-Sheng He  3   4 , Haiyan Chu  1
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The biogeography of soil archaeal communities on the eastern Tibetan Plateau

Yu Shi et al. Sci Rep. .

Abstract (VSports在线直播)

The biogeographical distribution of soil bacterial communities has been widely investigated. However, there has been little study of the biogeography of soil archaeal communities on a regional scale. Here, using high-throughput sequencing, we characterized the archaeal communities of 94 soil samples across the eastern Tibetan Plateau. Thaumarchaeota was the predominant archael phylum in all the soils, and Halobacteria was dominant only in dry soils. Archaeal community composition was significantly correlated with soil moisture content and C:N ratio, and archaeal phylotype richness was negatively correlated with soil moisture content (r = -0. 47, P < 0. 01). Spatial distance, a potential measure of the legacy effect of evolutionary and dispersal factors, was less important than measured environmental factors in determining the broad scale archaeal community pattern. These results indicate that soil moisture and C:N ratio are the key factors structuring soil archaeal communities on the eastern Tibetan Plateau. Our findings suggest that archaeal communities have adjusted their distributions rapidly enough to reach range equilibrium in relation to past environmental changes e. g. in water availability and soil nutrient status. This responsiveness may allow better prediction of future responses of soil archaea to environmental change in these sensitive ecosystems. VSports手机版.

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Conflict of interest statement

The authors declare no competing financial interests.

VSports注册入口 - Figures

Figure 1
Figure 1. Relative abundance of the dominant archaeal phyla/genus in all soils combined, and in soils separated according to vegetation types categories.
Abbreviations: All: all the soil samples; AM: Alpine Meadow; AS: Alpine Steppe; DS: Desert Steppe.
Figure 2
Figure 2. Multivariate Regression Trees (MRT) analysis of the archaeal community data associated the environmental variables.
Figure 3
Figure 3. Ordination of soil archaeal community data, db-RDA using soil moisture and C:N ratio as environmental variables.
Sites have been color coded according to vegetation type.
Figure 4
Figure 4. Distance-decay curves of similarity for the archaeal communities.
Environmental distance were fitted on the archaeal community similarity. The relationships between archaeal community and environmental or spatial distance were evaluated by Partial Mantel test.
See this image and copyright information in PMC

References (VSports注册入口)

    1. Fuhrman J. A. Microbial community structure and its functional implications. Nature 459, 193–199 (2009). - PubMed
    1. Horner-Devine M. C., Lage M., Hughes J. B. & Bohannan B. J. M. A taxa-area relationship for bacteria. Nature 432, 750–753 (2004). - PubMed
    1. Green J. L., Bohannan B. J. M. & Whitaker R. J. Microbial Biogeography: From Taxonomy to Traits. Science 320, 1039–1043 (2008). - PubMed (V体育官网入口)
    1. Fierer N. & Jackson R. B. The diversity and biogeography of soil bacterial communities. Proc. Natl. Acad. Sci. USA 103, 626–631 (2006). - PMC - PubMed
    1. Chu H. Y. et al.. Soil bacterial diversity in the Arctic is not fundamentally different from that found in other biomes. Environ. Microbiol. 12, 2998–3006 (2010). - PubMed

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