Project description:Paenibacillus polymyxa is a root-associated plant growth-promoting rhizobacterium. It was reported that many strains of P. polymyxa naturally exhibited the phenotypic variation. In the phase variation, the characteristics of the wild-type ‘B’ and the variant ‘F’ are very different in sporulation formation, motility, antibiotic ability and so on. For better understanding of the actual physiological changes, we performed RNA-seq analyses of P. polymyxa E681 to compare genome wide patterns of gene expression. As a result, we obtained 1,062 differentially expressed genes related to flagellar assembly and transport systems.
Project description:Purpose: Panax vietnamensis Ha et Grushv., which contains various valuable ginsenosides, is an important herbal medicine of Vietnam. However, it is an endangered species listed in Vietnam Red Data Book due to over-harvseting. Investigation about genomic or trancriptomic resources is one of the necessary activities to conserve P. vietnamensis Materials and Methods:. In this study, we sequenced the transcriptomes of 1-year-old P. vietnamensis from leaves and roots using Illumina NovaSeqTM6000 system. Results: A total of 60,254,062 and 64,588,528 reads was obtained and then assembled into 45,495 and 49,133 unigenes for leaves and roots, respectively. More than 60% unigenes from two organs were functional annotated using at least one database among Kyoto Encyclopedia of Genes and Genomes, Pfam, Gene Ontology, NCBI non-redundant Protein, and Evolutionary genealogy of genes. Further, the predominant transcripts of each cDNA library were analyzed for different gene expression identification. In addition, 457 unigenes encoding enzymes involved in triterpenoid saponin biosynthesis via the mavelonate (MVA) and the non-MVA (also named as MEP pathways) were discovered.
