Metagenomic analysis of bacterial endophyte community structure and functions in Panax ginseng at different ages.

ABSTRACT: This study investigated the root-associated bacterial endophytes of Panax ginseng at different ages by shotgun metagenomic analysis. After mapping metagenome data to the complete ginseng genome to identify unmapped sequences, we predicted the structure and functions of ginseng bacterial endophytes by metagenomic rapid annotation using subsystems technology analysis. While Proteobacteria and Actinobacteria were the predominant phyla in all samples (2-6-year-old roots), class Alphaproteobacteria was most abundant in 3-, 4-, and 5-year-old plants. We found that 3-year-old P. ginseng had a 0.66% unmapped rate against the whole ginseng genome and showed the greatest diversity of endophytic bacteria (α diversity = 299). Prediction of endophytic bacterial functions at differe

SUBMITTER: Hong CE 

PROVIDER: S-EPMC6646489 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature