Figure 1
From: Fluorescent sperm in a transparent worm: validation of a GFP marker to study sexual selection
In vivo micrographs of a GFP-expressing individual [hereafter GFP(+)] and a wild type individual [hereafter GFP(-)]. A, the GFP(+) worm, bright green, next to the GFP(-) worm, dark gray. B and C, increasingly magnified views of the sperm storage organ of the GFP(-) worm containing fluorescent sperm received from the GFP(+) worm. Scale bars represent 400, 60 and 40 μm in A, B and C, respectively.