@article{83956, author = {V{\'\i}tor Trovisco and Katsiaryna Belaya and Dmitry Nashchekin and Uwe Irion and George Sirinakis and Richard Butler and Jack Lee and Elizabeth Gavis and Daniel St Johnston}, title = {bicoid mRNA localises to the Drosophila oocyte anterior by random Dynein-mediated transport and anchoring.}, abstract = {

bicoid mRNA localises to the Drosophila oocyte anterior from stage 9 of oogenesis onwards to provide a local source for Bicoid protein for embryonic patterning. Live imaging at stage 9 reveals that bicoid mRNA particles undergo rapid Dynein-dependent movements near the oocyte anterior, but with no directional bias. Furthermore, bicoid mRNA localises normally in shot(2A2), which abolishes the polarised microtubule organisation. FRAP and photo-conversion experiments demonstrate that the RNA is stably anchored at the anterior, independently of microtubules. Thus, bicoid mRNA is localised by random active transport and anterior anchoring. Super-resolution imaging reveals that bicoid mRNA forms 110-120 nm particles with variable RNA content, but constant size. These particles appear to be well-defined structures that package the RNA for transport and anchoring.

}, year = {2016}, journal = {Elife}, volume = {5}, month = {10/2016}, issn = {2050-084X}, doi = {10.7554/eLife.17537}, language = {eng}, }