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Male identity and sperm displacement in Drosophila melanogaster

, : Male identity and sperm displacement in Drosophila melanogaster. Journal of Insect Physiology 41(12): 1087-1092

In Drosophila melanogaster, most of the sperm stored in a female is often displaced by the sperm from a subsequent mating. The exact mechanism of sperm displacement in D. melanogaster is unknown. It is thought, however, that the process is mediated largely by the male accessory gland fluid that is passed to the female, with sperm, during mating. If a sperm incapacitation process is involved, a male's accessory gland fluid would have to be able to distinguish between self and nonself sperm. Otherwise a male would incapacitate his own sperm as well as the sperm already stored in the female. Accordingly, if displacement occurs by an incapacitation mechanism, a male should be able to displace his own sperm less than that of another male. This experiment investigated whether males differentially displaced stored sperm when it was their own as opposed to that of another male. Females were remated to the same or a different male that had been sterilised between matings, allowing the degree of displacement of first male sperm to be determined unambiguously. Although no differential displacement was observed, further evidence was obtained that sperm displacement is caused by accessory gland fluid. The results also suggest that sperm displacement is directed primarily against sperm stored in the seminal vesicle rather than the spermathecae.

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Accession: 002889470

DOI: 10.1016/0022-1910(95)00068-6

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Belima, N.I.; Manorik, A.V., 1967: The concentration of free amino acids in the wound sap, roots, and root secretions of some plants. Pea, yellow lupine, and corn plants were grown in sand culture on Hellriegel's solution. Determinations were made in 30-day-old plants of the content of free amino acids by quantitative paper chromatography. Histidine, aspartic acid, and tyro...

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Xu, H.; Zeng, T.; Liu, J-Ying.; Lei, Y.; Zhong, S.; Sheng, Y-Jian.; Zhou, Z.; Ren, H., 2014: Measures to reduce mother-to-child transmission of Hepatitis B virus in China: a meta-analysis. Mother-to-child transmission (MTCT) is the main mode of spread of hepatitis B virus (HBV) in China. We performed a meta-analysis to compare the effects of three measures for prevention of MTCT. A meta-analysis was performed on randomized controlle...

Tapia Granados, J.A.; Nieto García, F.J., 1994: Spanish version of the epidemiologic dictionary of J. M. Last. We comment briefly on the original edition of Last's dictionary of epidemiology and we make a detailed criticism of the translated version of the dictionary. We show several general problems of the spanish version and specifically discuss fou...

Ooi, E.C.; Youson, J.H., 1977: Morphogenesis and growth of the definitive opistho nephros during metamorphosis of anadromous sea lamprey petromyzon marinus. The definitive opisthonephros of the adult lamprey, P. marinus, developed during metamorphosis from the nephrogenic cord confined within a nephric fold and extending from the posterior tip of the larval opisthonephros to the cloaca. Clusters of ce...

Neelakandhan, K.S., 2000: Aortic arch aneurysms. Aneurysms involving the aortic arch are formidable surgical challenges. Though the first successful surgery was performed more than 40 years ago, the risk of surgical treatment remained prohibitively high until recently. Intra-operative protection...

Proskuryakova, AM.; Markovich, NYa., 1985: Ecology of Anopheles messeae Fall. in the headwaters of the future Sayan water storage reservoir (the Central Tuva Depression). Meditsinskaya Parazitologiya I Parazitarnye Bolezni, 541: 8-15

Jänne, J.; Raina, A., 1969: On the stimulation of ornithine decarboxylase and RNA polymerase activity in rat liver after treatment with growth hormone. Biochimica et Biophysica Acta 174(2): 769-772

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Soeta, T.; Ukaji, Y., 2014: Carboxylic acid free novel isocyanide-based reactions. In order to develop a practical method for the construction of drug-like and heterocyclic compounds, we have designed a novel Passerini- or Ugi-type reaction system where a compound (which we write in the general form as Z-X) composed of an electr...