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Glass promotes the differentiation of both neuronal and non-neuronal cells in the Drosophila eye
WSU Dataset

UID: 85

Description
Multiple cell types can be specified from a single pool of progenitors through the combinatorial activity of transcriptional regulators, which activate distinct developmental programs to establish different cell fates. The zinc finger transcription factor Glass is required for neuronal progenitors in the Drosophila eye imaginal disc to acquire a photoreceptor identity. Glass is also expressed in non-neuronal cone and pigment cells, but its role in these cells is unknown. To examine how Glass activity is affected by the cellular context, the researchers misexpressed it in different tissues. When expressed in neuroblasts of the larval brain or in epithelial cells of the wing disc, Glass activated both a common core set of target genes and distinct gene sets specific to each tissue. In addition to photoreceptor-specific genes, Glass induced markers of cone and pigment cells. Cell type-specific glass mutations generated in cone or pigment cells using somatic CRISPR revealed autonomous developmental defects, and expressing Glass specifically in these cells partially rescued glass mutant phenotypes. Glass thus acts in both neuronal and non-neuronal cells to promote their differentiation into functional components of the eye, suggesting that it is a determinant of organ identity.
Subject of Study
Subject Domain
Keywords
Access Restrictions
Free to all
Access Instructions
Data can be accessed by clicking the above link.
Associated Publications
Equipment Used
Illumina HiSeq 2000
Dataset Format(s)
XLS
Dataset Size
5.5 MB
Grant Support
R01 EY013777/National Eye Institute
R21 EY024405/National Eye Institute
R21 EY024826/National Eye Institute
F31-EY025129/National Institute of Health
P30-CA016087/National Institute of Health