TY - JOUR
T1 - Retinal determination genes function along with cell-cell signals to regulate Drosophila eye development
T2 - Examples of multi-layered regulation by master regulators
AU - Baker, Nicholas E.
AU - Firth, Lucy C.
PY - 2011/7
Y1 - 2011/7
N2 - It is thought that retinal determination (RD) gene products define the response made to cell-cell signals in the field of eye development by binding to enhancers of genes that are also regulated by cell-cell signaling pathways. In Drosophila, RD genes, including eyeless, teashirt, eyes absent, dachsous, and sine oculis, are required for normal eye development and can induce ectopic eyes when mis-expressed. Characterization of the enhancers responsible for eye expression of the hedgehog, shaven, and atonal genes, as well as the dynamics of RD gene expression themselves, now suggest a multilayered network whereby transcriptional regulation by either RD genes or cell-cell signaling pathways can sometimes be indirect and mediated by other transcription factor intermediates. In this updated view of the interaction between extracellular information and cell intrinsic programs during development, regulation of individual genes might sometimes be several steps removed from either the RD genes or the cell-cell signaling pathways that nevertheless govern their expression.
AB - It is thought that retinal determination (RD) gene products define the response made to cell-cell signals in the field of eye development by binding to enhancers of genes that are also regulated by cell-cell signaling pathways. In Drosophila, RD genes, including eyeless, teashirt, eyes absent, dachsous, and sine oculis, are required for normal eye development and can induce ectopic eyes when mis-expressed. Characterization of the enhancers responsible for eye expression of the hedgehog, shaven, and atonal genes, as well as the dynamics of RD gene expression themselves, now suggest a multilayered network whereby transcriptional regulation by either RD genes or cell-cell signaling pathways can sometimes be indirect and mediated by other transcription factor intermediates. In this updated view of the interaction between extracellular information and cell intrinsic programs during development, regulation of individual genes might sometimes be several steps removed from either the RD genes or the cell-cell signaling pathways that nevertheless govern their expression.
KW - Cell-cell signal
KW - Drosophila eye
KW - Eyeless
KW - Positional information
KW - Retinal determination gene
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U2 - 10.1002/bies.201000131
DO - 10.1002/bies.201000131
M3 - Article
C2 - 21607995
AN - SCOPUS:79959259912
SN - 0265-9247
VL - 33
SP - 538
EP - 546
JO - BioEssays
JF - BioEssays
IS - 7
ER -