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. 2019 Dec 17;10:2874. doi: 10.3389/fmicb.2019.02874

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Copyright © 2019 Singh, Haque and Mande.

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) and the copyright owner(s) 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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Alpha diversity trends observed in gut microbiota samples across urban and tribal samples. Changes in the gut microbial community structure were observed in terms of alpha-diversity measures: Shannon index, Simpson index, and Chao index. (A) Box plots depicting community diversity comparison between urban and tribal groups. Tribal samples showed significantly higher diversity (BH-corrected p-values < 0.1) than urban cohorts. (B) Box plots depicting a similar pattern of higher diversity in tribes when compared between different geographical regions (Urban, Ahmedabad; Tribal, Andhra, Assam, Manipur, and Sikkim). For each alpha-diversity measure, viz. Shannon, Simpson, and Chao, statistical comparisons with corrected p-values corresponding to each paired geographical region comparison are shown as a sub-plot. The colors indicated in the legend provided for the figure can be used to interpret the statistical significance of the obtained corrected p-value.