MALE GENOTYPE AFFECTS FEMALE LONGEVITY IN DROSOPHILA MELANOGASTER

R Sawby, KA Hughes - Evolution, 2001 - academic.oup.com
R Sawby, KA Hughes
Evolution, 2001academic.oup.com
Abstract Several recent studies suggest that interactions with conspecific males can reduce
the longevity of female Drosophila melanogaster or support the idea that male and female
fitness components are involved in antagonistic interactions. Here we report that males from
third‐chromosome isogenic lines demonstrated significant genetic variation in male
reproductive performance and in the longevity of their mates. Increased male performance
was marginally significantly associated with one measure of increased female survival rate …
Abstract
Abstract Several recent studies suggest that interactions with conspecific males can reduce the longevity of female Drosophila melanogaster or support the idea that male and female fitness components are involved in antagonistic interactions. Here we report that males from third‐chromosome isogenic lines demonstrated significant genetic variation in male reproductive performance and in the longevity of their mates. Increased male performance was marginally significantly associated with one measure of increased female survival rate. However, there was no indication of tradeoffs or negative correlations between male reproductive success and female survival. We discuss alternative hypotheses for the cause of the induced variation in female longevity.
Oxford University Press
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