Fig. 4

Multiple factor analysis (MFA) and hierarchical clustering performed on 17 Ae. albopictus populations sampled from three different climatic regions. a Multiple factor analysis between genetic indices of all individuals and three environmental variables (temperature, rainfall and altitude) of 17 Ae. albopictus populations, populations of different clusters were marked with different colors; b hierarchical clustering of all 17 Ae. albopictus populations on the factor map