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Faculty & Research


Geraldine Seydoux

Department Affiliation Primary: Molecular Biology & Genetics
Phone Numbers410-614-4622
Fax: 410-955-9124
School of Medicine Address725 N. Wolfe Street
706 PCTB
Baltimore MD 21205
Link to Lab Homepage
Geraldine Seydoux

Research Topic: Molecular Genetics of Embryonic Polarity and Germ Cell Development

Our lab studies the earliest stages of embryogenesis to understand how single-celled eggs develop into complex multicellular embryos. We focus on the choice between soma and germline, one of the first developmental decisions faced by embryos. Our goal is to identify and characterize the molecular mechanisms that activate embryonic development, polarize embryos, and distinguish between somatic and germline cells. We use genetic, molecular and biochemical techniques and use the Caenorhabditis elegans as a model system. We are also developing methods for scalable and seamless genome editing using CRISPR/Cas9 in C. elegans. 


Wang, J. T., Smith, J. , Chen, B. C., Schmidt, H., Rasoloson, D., Paix, A. , Lambrus, B. G., Calidas, D., Betzig, E. and Seydoux, G. (2014) . Regulation of RNA granule dynamics by phosphorylation of serine-rich, intrinsically-disordered proteins in C. elegans. eLife, Dec 23;4. doi: 10.7554/eLife.04591. 
PubMed Reference
Paix, A. , Wang, Y. Lee, CY S., Calidas, D., Lu, T. Smith, J., Schmidt, H., Seydoux, G. (2014) A scalable method for seamless genome editing by homology-directed repair of Cas9-induced cuts. Genetics, Vol. 198, 1–10 December 2014. doi: 10.1534/genetics.114.170423
PubMed Reference​

Griffin E , Odde D and Seydoux G. Regulation of the MEX-5 gradient by a spatially-segregated kinase-phosphatase cycle (2011). Cell, 16;146(6):955-68.
PubMed Reference  

Motegi F, Zonies S, Hao Y,  Cuenca A , Griffin E, Seydoux G. (2011). Microtubules induce self-organization of polarized PAR domains in C. elegans zygotes. Nature Cell Biology, 13(11):1361-7.
PubMed Reference 

Gallo C, Wang J, Motegi F, Seydoux,G. (2010). Cytoplasmic partitioning of P granule components is not required to specify the germline in C. elegans. Science, 17;330(6011):1685-9.
PubMed Reference