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. 2017 Mar 24;8:502. doi: 10.3389/fmicb.2017.00502

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Copyright © 2017 Yang, Huang, Zhao, Sun, Yan, Wang, Li, Huang, Zhang, Liu and Gun.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Co-occurrence networks of bacterial genera constructed on the healthy and diarrheic piglets. Co-occurrence networks were deduced from 15 marker genera that were identified from 16S rRNA sequencing. Each node represents a genus, the size of each node is proportional to the relative abundance; the color of the nodes indicates their taxonomic assignment. Connection of paired nodes represent Spearman correlation coefficient (red) above 0.5 or below 0.5 (cyan), the thickness of each connection is proportional to the r-value.