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.
Unrooted neighbor-joining tree for haplotypes derived from a concatenated sequence of 105 European and 12 CGC strains of C. elegans. Subscripts indicate the number of strains per haplotype and strain origin (Fra, France; Ger, Germany; Sco, Scotland). Bootstrap values >70% are indicated below the branches. Haplotype designations are as in Figure 1.
