Stepwise polarisation of the Drosophila follicular epithelium
نویسندگان
چکیده
منابع مشابه
Patterning: JAK-STAT Signalling in the Drosophila Follicular Epithelium
During Drosophila oogenesis the follicular epithelium becomes subdivided into distinct cell populations. New reports have established that the Janus kinase (JAK) signalling pathway plays an important role in this process.
متن کاملThe Drosophila RNA-binding protein HOW controls the stability of dgrasp mRNA in the follicular epithelium
Post-transcriptional regulation of RNA stability and localization underlies a wide array of developmental processes, such as axon guidance and epithelial morphogenesis. In Drosophila, ectopic expression of the classically Golgi peripheral protein dGRASP at the plasma membrane is achieved through its mRNA targeting at key developmental time-points, in a process critical to follicular epithelium ...
متن کاملDifferential expression of the Drosophila zinc finger gene jim in the follicular epithelium
The Drosophila gene jim was identified by an enhancer trap line showing asymmetric dorso-ventral expression in the follicular epithelium. It gives rise to the jim-1 and jim-2 transcripts that contain distinct 5'-UTRs but encode the same nine C(2)H(2) zinc finger protein. From stage 10A onward, jim-1 RNA is transcribed in squamous cells while jim-2 RNA is specific to all non-antero-dorsal column...
متن کاملThe receptor tyrosine phosphatase Dlar and integrins organize actin filaments in the Drosophila follicular epithelium
BACKGROUND Regulation of actin structures is instrumental in maintaining proper cytoarchitecture in many tissues. In the follicular epithelium of Drosophila ovaries, a system of actin filaments is coordinated across the basal surface of cells encircling the oocyte. These filaments have been postulated to regulate oocyte elongation; however, the molecular components that control this cytoskeleta...
متن کاملTop–DER- and Dpp-dependent requirements for the Drosophila fos/kayak gene in follicular epithelium morphogenesis
The Drosophila fos (Dfos)/kayak gene has been previously identified as a key regulator of epithelial cell morphogenesis during dorsal closure of the embryo and fusion of the adult thorax. We show here that it is also required for two morphogenetic movements of the follicular epithelium during oogenesis. Firstly, it is necessary for the proper posteriorward migration of main body follicle cells ...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2010
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2009.11.027