FIG. 2.

Infection dynamics for male-killing and non-male-killing spiroplasmas during aging of D. melanogaster adults, expressed in terms of the number of dnaA copies per insect (A) or per host ef1α gene copy (B). Ten replicated measurements were obtained. The error bars indicate standard errors. An asterisk indicates that there is a significant difference between NSRO-infected females and NSRO-A-infected females (asterisks above the lines) or between NSRO-A-infected females and males (asterisks below the lines) (P < 0.05, as determined by the Mann-Whitney U test).