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.
The putative physical distribution of PnFL clones in 19 P. trichocarpa chromosomes (top: north; bottom: south). Each red pixel shows a locus that corresponds to a PnFL clone. The number underneath each chromosome is the chromosome number and that above is the distribution index (see Methods).
