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.
Diagram of gene and taxon sampling design, showing relationships among the three data sets analyzed. a) Five-gene complete matrix (123 taxa; from Regier et al. 2009). b) Partially augmented matrix, deliberately incomplete, created by adding 21 genes for just 41 of the 123 taxa in the five-gene complete matrix. c) More-genes-only matrix, consisting of just the 41 species sequenced for all 26 genes.
