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.
Comparative analysis of population structure in the pea aphid host races on alfalfa and clover (STRUCTURE, K = 2). The proportional representation of the two clusters in each of 100 pea aphid genotypes from alfalfa is shown on the left side of each panel; results for aphids collected from red clover are on the right. Marker classes are defined in the text.
