Abstract :
Two new studies reveal the role of microtubule polarity in the asymmetric localization of mRNAs. In this issue of Cell, show that the asymmetric localization of oskar mRNA in fruit fly oocytes results from a slight bias in the direction of its transport. Meanwhile, reporting in Developmental Cell find a subpopulation of microtubules that is critical for the asymmetric distribution of Vg1 mRNA in frog oocytes.
