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Paternal products and by–products in Drosophila development

S. Pitnick, T.L. Karr
Published 7 May 1998.DOI: 10.1098/rspb.1998.0366
S. Pitnick
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T.L. Karr
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Abstract

Tails of fertilizing spermatozoa persist throughout embryogenesis in Drosophila species and can be observed within the midguts of larvae after hatching. Throughout development, sperm proteins slowly diffuse or are stripped from the giant sperm tail residing within the embryo's anterior end. The shape and position of the sperm within the embryo are regulated such that, during organ formation, the unused portion of the sperm is enveloped by the developing midgut. This persistent, paternally derived structure is composed of the sperm's mitochondrial derivatives and appears to be defaecated by the larva soon after hatching. These complex sperm–egg interactions may represent mechanisms to avoid intragenomic conflict by ensuring strictly maternal inheritance of mitochondrial DNA (mtDNA).

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7 May 1998
Volume 265, issue 1398
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Paternal products and by–products in Drosophila development
S. Pitnick, T.L. Karr
Proc. R. Soc. Lond. B 1998 265 821-826; DOI: 10.1098/rspb.1998.0366. Published 7 May 1998
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Paternal products and by–products in Drosophila development

S. Pitnick, T.L. Karr
Proc. R. Soc. Lond. B 1998 265 821-826; DOI: 10.1098/rspb.1998.0366. Published 7 May 1998

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