In silico prediction and expression profile analysis of small non-coding RNAs in Herbaspirillum seropedicae SmR1
| Autor: | Vânia Pobre, Maria B. R. Steffens, Rose A. Monteiro, Tatiane Dobrzanski, Emanuel Maltempi de Souza, Helba Cirino de Souza Barbosa, Fábio O. Pedrosa, Cecília M. Arraiano, Leandro F. Moreno |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Riboswitch
Herbaspirillum lcsh:QH426-470 Herbaspirillum seropedicae SmR1 In silico lcsh:Biotechnology Rfam Computational biology Herbaspirillum seropedicae Proteomics Genome Diazotrophic bacterium 03 medical and health sciences Nitrogen fixation lcsh:TP248.13-248.65 Genetics Computer Simulation Gene Bacterial plant interaction 030304 developmental biology 0303 health sciences Nitrates biology 030306 microbiology food and beverages Gene Expression Regulation Bacterial biology.organism_classification 6. Clean water lcsh:Genetics RNA Bacterial Regulatory RNA Flavanones RNA Small Untranslated DNA microarray sRNA Biotechnology Research Article |
| Zdroj: | BMC Genomics BMC Genomics, Vol 21, Iss 1, Pp 1-13 (2020) |
| ISSN: | 1471-2164 |
| Popis: | Background Herbaspirillum seropedicae is a diazotrophic bacterium from the β-proteobacteria class that colonizes endophytically important gramineous species, promotes their growth through phytohormone-dependent stimulation and can express nif genes and fix nitrogen inside plant tissues. Due to these properties this bacterium has great potential as a commercial inoculant for agriculture. The H. seropedicae SmR1 genome is completely sequenced and annotated but despite the availability of diverse structural and functional analysis of this genome, studies involving small non-coding RNAs (sRNAs) has not yet been done. We have conducted computational prediction and RNA-seq analysis to select and confirm the expression of sRNA genes in the H. seropedicae SmR1 genome, in the presence of two nitrogen independent sources and in presence of naringenin, a flavonoid secreted by some plants. Results This approach resulted in a set of 117 sRNAs distributed in riboswitch, cis-encoded and trans-encoded categories and among them 20 have Rfam homologs. The housekeeping sRNAs tmRNA, ssrS and 4.5S were found and we observed that a large number of sRNAs are more expressed in the nitrate condition rather than the control condition and in the presence of naringenin. Some sRNAs expression were confirmed in vitro and this work contributes to better understand the post transcriptional regulation in this bacterium. Conclusions H. seropedicae SmR1 express sRNAs in the presence of two nitrogen sources and/or in the presence of naringenin. The functions of most of these sRNAs remains unknown but their existence in this bacterium confirms the evidence that sRNAs are involved in many different cellular activities to adapt to nutritional and environmental changes. |
| Databáze: | OpenAIRE |
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