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.
Nucleotide substitution rates in Nicotiana genes. Frequency histograms showing the rate of synonymous nucleotide substitutions (Ks) in orthologous genes between N. tabacum and S. lycopersicum (A), N. sylvesteris and N. tomentosiformis (B), N. tabacum and N. sylvesteris (C) and N. tabacum and N. tomentosiformis (D).
