Fig. 4From: Symbiont interactions with non-native hosts limit the formation of new symbiosesMean establishment of H. defensa in three aphid clones belonging to the L. pedunculatus biotype and three from the L. corniculatus biotype with standard error (black bars). The L. pedunculatus biotype frequently harbors H. defensa in field populations, whereas the L. corniculatus biotype does notBack to article page