Figure 1

Sampling locations of Aphis gossypii and repartition of microsatellite lineages in greater China. Lineage 1 is shown in red and Lineage 2 is shown in green. Groups revealed by STRUCTURE analysis of microsatellite data are shown. For population abbreviations, see Table 2. ArcView GIS (version 3.2, http://www.resources.esri.com) was used to produce a distribution map based on the geographical coordinates of the localities, which were obtained with a Global Positioning System receive. The base map (Greater China 1: 4,000,000) for the analysis was obtained the URL: http://www.diva-gis.org/gdata.