Abstract:
BACKGROUND:Bacterial non-coding RNAs act by base-pairing as regulatory elements in crucial biological processes. We performed the identification of trans-encoded small RNAs (sRNA) from the genomes of Mycoplama hyopneumoniae, Mycoplasma flocculare and Mycoplasma hyorhinis, which are Mycoplasma species that have been identified in the porcine respiratory system. RESULTS:A total of 47, 15 and 11 putative sRNAs were predicted in M. hyopneumoniae, M. flocculare and M. hyorhinis, respectively. A comparative genomic analysis revealed the presence of species or lineage specific sRNA candidates. Furthermore, the expression profile of some M. hyopneumoniae sRNAs was determined by a reverse transcription amplification approach, in three different culture conditions. All tested sRNAs were transcribed in at least one condition. A detailed investigation revealed a differential expression profile for two M. hyopneumoniae sRNAs in response to oxidative and heat shock stress conditions, suggesting that their expression is influenced by environmental signals. Moreover, we analyzed sRNA-mRNA hybrids and accessed putative target genes for the novel sRNA candidates. The majority of the sRNAs showed interaction with multiple target genes, some of which could be linked to pathogenesis and cell homeostasis activity. CONCLUSION:This study contributes to our knowledge of Mycoplasma sRNAs and their response to environmental changes. Furthermore, the mRNA target prediction provides a perspective for the characterization and comprehension of the function of the sRNA regulatory mechanisms.
journal_name
BMC Genomicsjournal_title
BMC genomicsauthors
Siqueira FM,de Morais GL,Higashi S,Beier LS,Breyer GM,de Sá Godinho CP,Sagot MF,Schrank IS,Zaha A,de Vasconcelos ATdoi
10.1186/s12864-016-3061-zsubject
Has Abstractpub_date
2016-10-25 00:00:00pages
743issue
Suppl 8issn
1471-2164pii
10.1186/s12864-016-3061-zjournal_volume
17pub_type
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