Journal
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 268, Issue 1475, Pages 1527-1532Publisher
ROYAL SOC
DOI: 10.1098/rspb.2001.1673
Keywords
Drosophila; ejaculate; phosphorus; oogenesis; donation
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Oogenesis in Drosophila requires a significant amount of phosphorus. Oocytes mature in follicles, each of which contains 15 highly polyploid, transcriptionally active chromosomes. We show that the demand for phosphorus is met in part from the male's ejaculate following mating Females incorporate phosphorus-32 from radiolabelled males into their ovaries, specifically into their nucleic acids. Male-derived phosphorus is also present in significant amounts in mature oocytes. The mechanism by which phosphorus uptake from the female reproductive tract occurs must differ front that previously reported for radiolabelled carbon and hydrogen derived from ejaculatory proteins, as phosphorus uptake is observed in species not showing female incorporation of radiolabel derived from ejaculate proteins.
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