Genetic diversity and silencing suppression effects of Rice yellow mottle virus and the P1 protein.

ABSTRACT:

Background

PTGS (post-transcriptional gene silencing) is used to counter pathogenic invasions, particularly viruses. In return, many plant viruses produce proteins which suppress silencing directed against their RNA. The diversity of silencing suppression at the species level in natural hosts is unknown.

Results

We investigated the functional diversity of silencing suppression among isolates of the African RYMV (Rice yellow mottle virus) in rice. The RYMV-P1 protein is responsible for cell-to-cell movement and is a silencing suppressor. Transgenic gus-silencing rice lines were used to investigate intra-specific and serogroup silencing suppression diversity at two different levels: that of the virion and the P1 silencing suppressor protein. Our data provide evidence that sile

SUBMITTER: Sire C 

PROVIDER: S-EPMC2390521 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature