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Título

The Complex Tale of the achaete–scute Complex: A Paradigmatic Case in the Analysis of Gene Organization and Function During Development

AutorCelis, José F. de; García-Bellido, Antonio
Palabras claveDrosophila
achaete-scute gene complex (AS-C)
Fecha de publicaciónjul-2009
EditorGenetics Society of America
CitaciónGenetics 182(3): 631–639 (2009)
ResumenThe achaete–scute gene complex (AS-C) contains four genes encoding transcription factors of the bHLH family, achaete, scute, lethal of scute, and asense located in 40 kb of DNA containing multiple cis-regulatory position-specific enhancers. These genes play a key role in the commitment of epidermal cells toward a neural fate, promoting the formation of both sensory organs in the peripheral nervous system (bristles) of the adult and of neuroblasts in the central nervous system of the embryo. The analysis of the AS-C initially focused on the variations in positional specificity of effects of achaete (ac) and scute (sc) alleles on macrochaete bristle pattern in the Drosophila adult epidermis, and from there it evolved as a key entry point into understanding the molecular bases of pattern formation and cell commitment. In this perspective, we describe how the study of the AS-C has contributed to the understanding of eukaryotic gene organization and the dissection of the developmental mechanisms underlying pattern formation.
Versión del editorhttp://dx.doi.org/10.1534/genetics.109.104083
URIhttp://hdl.handle.net/10261/25006
DOI10.1534/genetics.109.104083
ISSN0016-6731
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