A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Reference Report

Reference
Citation Cherbas, L., Willingham, A., Zhang, D., Yang, L., Zou, Y., Eads, B.D., Carlson, J.W., Landolin, J.M., Kapranov, P., Dumais, J., Samsonova, A., Choi, J.H., Roberts, J., Davis, C.A., Tang, H., van Baren, M.J., Ghosh, S., Dobin, A., Bell, K., Lin, W., Langton, L., Duff, M.O., Tenney, A.E., Zaleski, C., Brent, M.R., Hoskins, R.A., Kaufman, T.C., Andrews, J., Graveley, B.R., Perrimon, N., Celniker, S.E., Gingeras, T.R., Cherbas, P. (2011). The transcriptional diversity of 25 Drosophila cell lines.  Genome Res. 21(2): 301--314. (Export to RIS)
FlyBase ID FBrf0213077
Publication Type Research paper
PubMed ID 21177962
PubMed Abstract Drosophila melanogaster cell lines are important resources for cell biologists. Here, we catalog the expression of exons, genes, and unannotated transcriptional signals for 25 lines. Unannotated transcription is substantial (typically 19% of euchromatic signal). Conservatively, we identify 1405 novel transcribed regions; 684 of these appear to be new exons of neighboring, often distant, genes. Sixty-four percent of genes are expressed detectably in at least one line, but only 21% are detected in all lines. Each cell line expresses, on average, 5885 genes, including a common set of 3109. Expression levels vary over several orders of magnitude. Major signaling pathways are well represented: most differentiation pathways are "off" and survival/growth pathways "on." Roughly 50% of the genes expressed by each line are not part of the common set, and these show considerable individuality. Thirty-one percent are expressed at a higher level in at least one cell line than in any single developmental stage, suggesting that each line is enriched for genes characteristic of small sets of cells. Most remarkable is that imaginal disc-derived lines can generally be assigned, on the basis of expression, to small territories within developing discs. These mappings reveal unexpected stability of even fine-grained spatial determination. No two cell lines show identical transcription factor expression. We conclude that each line has retained features of an individual founder cell superimposed on a common "cell line" gene expression pattern.
DOI 10.1101/gr.112961.110
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Language of Publication English
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Publication Type Journal
Abbreviation Genome Res.
Title Genome Research
Publication Year 1995-
ISBN/ISSN 1088-9051
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