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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Divergence of functional effects among bacterial sRNA paralogs

Fig. 4

a Single-copy Pxr homologs from different species blocked M. xanthus development but there is large functional variation among the paralogs in Cystobacter. Spore production by OC Δpxr-derived strains carrying integrated pxr homologs from different myxobacterial species are shown. Dark grey bars indicate single-copy Pxr homologs and light grey bars indicate Pxr paralogs. Arrows indicate that no spores were produced at the lower limit of detection. Error bars represent standard deviations. b Northern blot showing the expression of Pxr-L and Pxr-S produced by the OC Δpxr-derived strains integrated with pxr homologs from different species of myxobacteria and the control strains. The asterisk marks binding of the probe to non-Pxr RNAs

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