Home
Reference Report
| Reference | |||
|---|---|---|---|
| Citation | Benoit, B., He, C.H., Zhang, F., Votruba, S.M., Tadros, W., Westwood, J.T., Smibert, C.A., Lipshitz, H.D., Theurkauf, W.E. (2009). An essential role for the RNA-binding protein Smaug during the Drosophila maternal-to-zygotic transition. Development 136(6): 923--932. (Export to RIS) | ||
| FlyBase ID | FBrf0206725 | ||
| Publication Type | Research paper | ||
| PubMed ID | 19234062 | ||
| PubMed Abstract | Genetic control of embryogenesis switches from the maternal to the zygotic genome during the maternal-to-zygotic transition (MZT), when maternal mRNAs are destroyed, high-level zygotic transcription is initiated, the replication checkpoint is activated and the cell cycle slows. The midblastula transition (MBT) is the first morphological event that requires zygotic gene expression. The Drosophila MBT is marked by blastoderm cellularization and follows 13 cleavage-stage divisions. The RNA-binding protein Smaug is required for cleavage-independent maternal transcript destruction during the Drosophila MZT. Here, we show that smaug mutants also disrupt syncytial blastoderm stage cell-cycle delays, DNA replication checkpoint activation, cellularization, and high-level zygotic expression of protein coding and micro RNA genes. We also show that Smaug protein levels increase through the cleavage divisions and peak when the checkpoint is activated and zygotic transcription initiates, and that transgenic expression of Smaug in an anterior-to-posterior gradient produces a concomitant gradient in the timing of maternal transcript destruction, cleavage cell cycle delays, zygotic gene transcription, cellularization and gastrulation. Smaug accumulation thus coordinates progression through the MZT. | ||
| DOI | 10.1242/dev.031815 | ||
| Related Publication(s) | |||
Recent Updates
|
|||
| Description |
What does this section display?
This section contains items that were added to this record for each release.
It currently only tracks new links between this FlyBase report and other
FlyBase data classes (e.g. genes, references, stocks) or controlled
vocabulary terms (e.g. GO, anatomy terms).
What does this section not display?
This section does not currently display links that were removed or gene model changes.
|
||
| Update Feed |
Click the icon below to subscribe to this FlyBase record and receive updates automatically through your
feed reader.
|
||
| FB2013_03 | |||
| FB2013_02 | |||
| All updates | Click here to see a list of all updates to this record from FB2010_08 and on. | ||
|
Associated Information
|
|||
| Comments | |||
| Associated Files | |||
|
Other Information
|
|||
| Secondary IDs | |||
| Language of Publication | English | ||
| Additional Languages of Abstract | |||
| Also Published As | |||
|
Parent Publication
|
|||
| Publication Type | Journal | ||
| Abbreviation | Development | ||
| Title | Development | ||
| Publication Year | 1987- | ||
| ISBN/ISSN | 0950-1991 | ||
|
Data from Reference
|
|||
| Genes (14)
|
|||