Close-up on FISH detection of <i>Wolbachia</i> in infected ovaries.

<p><i>Wolbachia</i> appear in red and mostly cluster around the nucleus (blue). The yellow patterns at the periphery of some oocytes correspond to a type of vesicle which content autofluoresces both in red and green. In this Mature I ovary the germarium is on the left side, then some Small uninfected oocytes (e.g. *), and Medium size oocytes with representatives from the category “poorly infected” (**) and highly infected (***). Red: <i>Wolbachia</i> FISH probe W1,2-Cy3, green: phalloidin, blue: DAPI.