GSE195893
Oo-site: A dashboard to visualize gene expression during Drosophila oogenesis reveals meiotic entry is regulated post-transcriptionally
Determining how stem cell differentiation is controlled has important implications for understanding the etiology of degenerative disease and designing regenerative therapies. In vivo analyses of stem cell model systems have revealed regulatory paradigms for stem cell self-renewal and differentiation. The germarium of the female Drosophila gonad, which houses both germline and somatic stem cells, is one such model system. Bulk mRNA sequencing (RNA-seq), single cell (sc) RNA-seq, and bulk translation efficiency of mRNAs is available for stem cells and their differentiating progeny within the Drosophila germarium. However, visualizing those data is hampered by lack of a tool to spatially map gene expression and translational data in the germarium. Here, we have developed Oo-site (https://www.ranganlab.com/Oo-site), a tool for visualizing bulk- and scRNA-seq and translational efficiency data during different stages of germline differentiation, that makes these data accessible to non-bioinformaticians. Using this tool, we recapitulated previously reported expression patterns of developmentally regulated genes and discovered that meiotic genes, such as those that regulate the synaptonemal complex, are regulated at the level of translation. Overall design: polysome-seq of duplicate samples of ovaries from germline bam RNAi; hs-bam to determine cyst expression