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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Repeated evolution of asymmetric genitalia and right-sided mating behavior in the Drosophila nannoptera species group

Fig. 1

The aedeagus of male Drosophila pachea is asymmetric. SEM images of a single phallus in lateral-dorsal and dorsal-apical view. Note the asymmetric position of two subapical spurs, located on the ventral side of the aedeagus, and the asymmetric position of the gonopore. The white arrows point to the gonopore. The scale bar is equivalent to 100 μm

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