Genomic variations in the 3'-termini of Rice stripe virus in the rotation between vector insect and host plant.

ABSTRACT: A large number of plant RNA viruses circulate between plants and insects. For RNA viruses, host alternations may impose a differential selective pressure on viral populations and induce variations in viral genomes. Here, we report the variations in the 3'-terminal regions of the multiple-segment RNA virus Rice stripe virus (RSV) that were discovered through de novo assembly of the genome using RNA sequencing data from infected host plants and vector insects. The newly assembled RSV genome contained 16- and 15-nt extensions at the 3'-termini of two genome segments compared with the published reference RSV genome. Our study demonstrated that these extensional sequences were consistently observed in two RSV isolates belonging to distinct genetic subtypes in RSV-infected rice, wheat and tobacc

SUBMITTER: Zhao W 

PROVIDER: S-EPMC6055815 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature