In Vivo Colocalisation of oskar mRNA and Trans-Acting Proteins Revealed by Quantitative Imaging of the Drosophila Oocyte

Musa M. Mhlanga, Diana P. Bratu, Auguste Genovesio, Agata Rybarska, Nicolas Chenouard, Ulf Nehrbass, Jean Christophe Olivo-Marin

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

Efficient mRNA transport in eukaryotes requires highly orchestrated relationships between nuclear and cytoplasmic proteins. For oskar mRNA, the Drosophila posterior determinant, these spatio-temporal requirements remain opaque during its multi-step transport process. By in vivo covisualization of oskar mRNA with Staufen, its putative trafficking protein, we find oskar mRNA to be present in particles distinct from Staufen for part of its transport. oskar mRNA stably associated with Staufen near the posterior pole. We observe oskar mRNA to oligomerize as hundreds of copies forming large particles which are necessary for its long range transport and localization. We show the formation of these particles occurs in the nurse cell nucleus in an Hrp48-dependent manner. We present a more refined model of oskar mRNA transport in the Drosophila oocyte.

Original languageEnglish
Article numbere0006241
JournalPLoS ONE
Volume4
Issue number7
DOIs
Publication statusPublished - 2009
Externally publishedYes

Fingerprint

Dive into the research topics of 'In Vivo Colocalisation of oskar mRNA and Trans-Acting Proteins Revealed by Quantitative Imaging of the Drosophila Oocyte'. Together they form a unique fingerprint.

Cite this