Behavioral facilitation of reproduction in sexual and parthenogenetic Drosophila

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Science  04 Jan 1985:
Vol. 227, Issue 4682, pp. 77-78
DOI: 10.1126/science.3964961


In a normal bisexual laboratory strain of Drosophila mercatorum, females housed with either fertile or sterile males lay more eggs than do females housed in pairs or as isolates. Females of a derived parthenogenetic strain have suffered genetic loss of this behavioral facilitation of egg production, a loss comparable to the loss of sexual receptivity. Despite these losses there has been a large increase in fecundity in the parthenogenetic strain. These findings are compared with those in a parthenogenetic lizard.