Cell sorting scheme and its impact on bacterial diversity of the samples. Cell sorting scheme and its impact on bacterial diversity of the samples. (A)

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Multivariate Data Analysis Chapter 1 - Introduction.

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Cell sorting scheme and its impact on bacterial diversity of the samples. Cell sorting scheme and its impact on bacterial diversity of the samples. (A) FACS biplots showing setup of sorting gates in comparison with negative controls. Each sample was used in two separated sorting rounds: (i) active-bacterium sorting and (ii) IgA-coated-bacterium sorting. For each fraction, 540,000 cells were separated and 16S rRNA genes were amplified and sequenced. FSC, forward scatter. (B) Canonical correspondence analysis of ordination of fractionated fecal samples by fitting their overall bacterial composition into variables of active-F, inactive-F, IgA-pos-F, and IgA-neg-F. The fractionated samples are numbered 1 to 24 and are colored in accordance with the fraction colors. Analysis showed that the fractions have a significant influence on the bacterial composition, meaning that the differences among samples belonging to different fractions may be detected in the subsequent analysis. Mária Džunková et al. mSphere 2016; doi:10.1128/mSphere.00101-16