Abstract
We have used double-stranded RNA-mediated interference (RNAi) to study Drosophila cytokinesis. We show that double-stranded RNAs for anillin, acGAP,pavarotti, rho1, pebble,spaghetti squash, syntaxin1A, andtwinstar all disrupt cytokinesis in S2 tissue culture cells, causing gene-specific phenotypes. Our phenotypic analyses identify genes required for different aspects of cytokinesis, such as central spindle formation, actin accumulation at the cell equator, contractile ring assembly or disassembly, and membrane behavior. Moreover, the cytological phenotypes elicited by RNAi reveal simultaneous disruption of multiple aspects of cytokinesis. These phenotypes suggest interactions between central spindle microtubules, the actin-based contractile ring, and the plasma membrane, and lead us to propose that the central spindle and the contractile ring are interdependent structures. Finally, our results indicate that RNAi in S2 cells is a highly efficient method to detect cytokinetic genes, and predict that genome-wide studies using this method will permit identification of the majority of genes involved inDrosophila mitotic cytokinesis.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 28, 2002, 6:37 p.m.) |
Deposited | 4 years, 3 months ago (May 26, 2021, 8:25 p.m.) |
Indexed | 1 month, 3 weeks ago (July 2, 2025, 2:31 p.m.) |
Issued | 23 years, 1 month ago (July 1, 2002) |
Published | 23 years, 1 month ago (July 1, 2002) |
Published Print | 23 years, 1 month ago (July 1, 2002) |
@article{Somma_2002, title={Molecular Dissection of Cytokinesis by RNA Interference inDrosophilaCultured Cells}, volume={13}, ISSN={1939-4586}, url={http://dx.doi.org/10.1091/mbc.01-12-0589}, DOI={10.1091/mbc.01-12-0589}, number={7}, journal={Molecular Biology of the Cell}, publisher={American Society for Cell Biology (ASCB)}, author={Somma, Maria Patrizia and Fasulo, Barbara and Cenci, Giovanni and Cundari, Enrico and Gatti, Maurizio}, editor={McIntosh, J. Richard}, year={2002}, month=jul, pages={2448–2460} }