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.
Relationship between heterosis index H and epistasis index I (truncated at 5, the highest value being 16.82). The values on the left of the vertical dotted line of abscissa 1 correspond to antagonist epistasis. The positive H values correspond to best-parent heterosis
