Neighbor-joining tree illustrating the relationships of the migratory locust populations in China based on allelic frequencies at eight microsatellite loci. This is a tree based on Cavalli-Sforza's chord distance (Dc) from the microsatellite loci. The tree based on Nei's standard genetic distance (Ds) has highly concordant topology and thus is not shown. Numbers above branches are percentage bootstrap support values from 1000 replicates (only values > 50% shown). The African population 'F' was used as the outgroup. Color codes: Blue for samples from North China (Mengxin region + East China), red for South China, and orange for Tibetan region.