Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The viroids are also classified by their subfamilies. Viroids in bold are those reported in this article. The underlined names represent viroids whose structures were elucidated in other reports [24]. The characteristics described in the paper are listed on the right.
