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.
Commercially important EFFs. (A) Genera in which the 64 EFFs with a prominent role in the global market belong. The number of species in each genus is indicated. (B) The top 20 most important EFFs are shown as a pyramid, which is divided into layers. The top layer represents the most traded EFF and the bottom layer the less traded, respectively.
