Detailed transcriptome analysis of the plant growth promoting Paenibacillus riograndensis SBR5 by using RNA-seq technology

BMC Genomics

Research Article

Jörn Kalinowski¹  Marta Irla²  Volker F. Wendisch³  Luciana Fernandes Brito³ 

[1] Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany;Department of Biotechnology and Food Science, Norwegian University of Science and Technology, Trondheim, Norway;Department of Genetics of Prokaryotes, Faculty of Biology, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany;Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany;

关键词: Paenibacillus riograndensis;    RNA sequencing;    Transcriptional start sites;    Promoter motifs;    Ribosome biding sites;    Operon structures;    Paenibacillus sonchi;   

DOI  :  10.1186/s12864-017-4235-z

 received in 2017-05-11, accepted in 2017-10-23,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundThe plant growth promoting rhizobacterium Paenibacillus riograndensis SBR5 is a promising candidate to serve as crop inoculant. Despite its potential in providing environmental and economic benefits, the species P. riograndensis is poorly characterized. Here, we performed for the first time a detailed transcriptome analysis of P. riograndensis SBR5 using RNA-seq technology.ResultsRNA was isolated from P. riograndensis SBR5 cultivated under 15 different growth conditions and combined together in order to analyze an RNA pool representing a large set of expressed genes. The resultant total RNA was used to generate 2 different libraries, one enriched in 5′-ends of the primary transcripts and the other representing the whole transcriptome. Both libraries were sequenced and analyzed to identify the conserved sequences of ribosome biding sites and translation start motifs, and to elucidate operon structures present in the transcriptome of P. riograndensis. Sequence analysis of the library enriched in 5′-ends of the primary transcripts was used to identify 1082 transcription start sites (TSS) belonging to novel transcripts and allowed us to determine a promoter consensus sequence and regulatory sequences in 5′ untranslated regions including riboswitches. A putative thiamine pyrophosphate dependent riboswitch upstream of the thiamine biosynthesis gene thiC was characterized by translational fusion to a fluorescent reporter gene and shown to function in P. riograndensis SBR5.ConclusionsOur RNA-seq analysis provides insight into the P. riograndensis SBR5 transcriptome at the systems level and will be a valuable basis for differential RNA-seq analysis of this bacterium.

【 授权许可】

CC BY   
© The Author(s). 2017