Mating Speed and Courtship Behaviour of Inbred Strains of Drosophila Melanogaster
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Abstract
Three inbred wildtype strains of Drosophila melanogaster, Amherst, Novosibirsk and Pacific differ in mating speed. An analysis of courtship behaviour reveals significant differences between genotypes in the latency and duration of courtship, attributable to differences in sexual response thresholds between males and levels of receptivity between females. There are significant interstrain differences in the proportions of time spent in, and bout lengths of, the principal elements of courtship behaviour of males with virgin females. Virgin females differ from fertilised females in their repertoire of courtship rejection responses and there are significant strain differences in the rates of rejection response. However, rate of rejection was not found to be a good indicator of the female's receptivity. Extrusion forms the characteristic rejection movement of fertilised females and has consequences which are genotype dependent, serving to inhibit further courtship by the male in some strains and to avoid copulation in others. Preening appears to serve as a displacement activity in males which are persistently rejected by females.
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| All Time | Past 365 days | Past 30 Days | |
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Mating Speed and Courtship Behaviour of Inbred Strains of Drosophila Melanogaster
In: BehaviourSearch for other papers by Kevin Connolly in
Current site
Google Scholar
PubMed
Search for other papers by Barrie Burnet in
Current site
Google Scholar
PubMed
Search for other papers by Marie Kearney in
Current site
Google Scholar
PubMed
Search for other papers by Lynn Eastwood in
Current site
Google Scholar
PubMed
Abstract
Three inbred wildtype strains of Drosophila melanogaster, Amherst, Novosibirsk and Pacific differ in mating speed. An analysis of courtship behaviour reveals significant differences between genotypes in the latency and duration of courtship, attributable to differences in sexual response thresholds between males and levels of receptivity between females. There are significant interstrain differences in the proportions of time spent in, and bout lengths of, the principal elements of courtship behaviour of males with virgin females. Virgin females differ from fertilised females in their repertoire of courtship rejection responses and there are significant strain differences in the rates of rejection response. However, rate of rejection was not found to be a good indicator of the female's receptivity. Extrusion forms the characteristic rejection movement of fertilised females and has consequences which are genotype dependent, serving to inhibit further courtship by the male in some strains and to avoid copulation in others. Preening appears to serve as a displacement activity in males which are persistently rejected by females.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 444 | 64 | 5 |
| Full Text Views | 173 | 5 | 0 |
| PDF Views & Downloads | 37 | 0 | 0 |
