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.
Average pairwise number of nucleotide differences per site (nucleotide diversity, π) at synonymous (a, c) and nonsynonymous (b, d) sites calculated for three distinct regions (5′-terminal, central and 3′-terminal) of the cp (a, b) and rep (c, d) genes of begomoviruses using DnaSP v.5.
