Rice stripe virus-derived siRNAs play different regulatory roles in rice and in the insect vector Laodelphax striatellus.

ABSTRACT:

Background

Most plant viruses depend on vector insects for transmission. Upon viral infection, virus-derived small interfering RNAs (vsiRNAs) can target both viral and host transcripts. Rice stripe virus (RSV) is a persistent-propagative virus transmitted by the small brown planthopper (Laodelphax striatellus, Fallen) and can cause a severe disease on rice.

Results

To investigate how vsiRNAs regulate gene expressions in the host plant and the insect vector, we analyzed the expression profiles of small RNAs (sRNAs) and mRNAs in RSV-infected rice and RSV-infected planthopper. We obtained 88,247 vsiRNAs in rice that were predominantly derived from the terminal regions of the RSV RNA segments, and 351,655 vsiRNAs in planthopper that displayed relatively even distributions on RSV

SUBMITTER: Yang M 

PROVIDER: S-EPMC6172784 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature