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Table 2.

Effect of genital sensilla of hybrid males (D. melanogaster female × D. simulans male) with females of the two parental species

Mating posture
NMating eventsCentral (%)Left side (%)Right side (%)Copulation latency (min)
(D. melanogaster × D. simulans) hybrid males with D. simulans females       
Control 30 26 92.4 3.8 3.8 47.8±6.8 
Left-side ablation 18 10 90 10 37.4±9.2 
(D. melanogaster × D. simulans) hybrid males with D. melanogaster females       
Control 30 100 24.5±4.5 
Left-side ablation 18 100 49±18 
Mating posture
NMating eventsCentral (%)Left side (%)Right side (%)Copulation latency (min)
(D. melanogaster × D. simulans) hybrid males with D. simulans females       
Control 30 26 92.4 3.8 3.8 47.8±6.8 
Left-side ablation 18 10 90 10 37.4±9.2 
(D. melanogaster × D. simulans) hybrid males with D. melanogaster females       
Control 30 100 24.5±4.5 
Left-side ablation 18 100 49±18 

To increase the probability of mating, flies were observed en masse for 2 h. No significant effects were found on copulation latency or duration (data not shown).

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