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Cortical cytoskeleton of giant moth eggs
Author(s) -
Jarnot B.,
Watson C.,
Laffan E.,
Nichols L.,
Geysen J.,
Berry S. J.
Publication year - 1988
Publication title -
molecular reproduction and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.745
H-Index - 105
eISSN - 1098-2795
pISSN - 1040-452X
DOI - 10.1002/mrd.1080010107
Subject(s) - biology , cytoskeleton , zoology , evolutionary biology , microbiology and biotechnology , ecology , genetics , cell
Unfertilized eggs of several species of giant moths contain a substantial cortical cytoskeleton. This structure is assembled during oogenesis, and contains actin as a major fibrillar component. The presence of actin was confirmed by gel electrophoresis and binding to phalloidin, DNase 1, and a monoclonal antibody against cytoskeletal actin. Several lines of evidence suggest that the fat body is a source of the actin in the oocyte and that the transport and acquisition of actin by the ovary are similar to the mechanism of vitellogenin acquisition. A possible role for the cortical cytoskeleton in directing early embryogenesis is discussed.