Figure 4. Northern analysis of the Smr14 and Smr15 sRNAs in S. meliloti. Maps of the genomic regions (not drawn to scale) of all the genes predicted by the αr14 and αr15 CMs in S. meliloti 1021 are shown to the left of the panels. Numbers denote coordinates of the genes in the genome. Name of the oligonucleotide probes used to hybridize each membrane are indicated to the right and their corresponding nucleotide sequences are listed in Table 2. RNA samples were obtained from logarithmic (log) and stationary phase (st) S. meliloti 1021 cultures in TY broth. 5S RNA was also probed as RNA loading control.