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.
Age distributions of LTR-retrotransposons in introns and genome. Distribution of LTR retrotransposon age represented by similarity between LTR regions (the higher similarity, the younger the elements) in a. large introns; b. V. vinifera genome. LTR pairs younger than 10,000 years are indicated by arrows
