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Título

Zebrafish Enhancer Detection (ZED) Vector: A New Tool to Facilitate Transgenesis and the Functional Analysis of cis-Regulatory Regions in Zebrafish

Autor Bessa, José ; Tena, Juan J. ; Calle-Mustienes, Elisa de la ; Fernández-Miñán, Ana ; Naranjo, Silvia ; Fernández, Almudena; Montoliu, Lluís; Akalin, Altuna; Lenhard, Boris; Casares, Fernando ; Gómez-Skarmeta, José Luis
Palabras clave Zebrafish
Insulators
Transgenesis
Fecha de publicación sep-2009
EditorJohn Wiley & Sons
Citación Developmental Dynamics
ResumenThe identification and characterization of the regulatory activity of genomic sequences is crucial for understanding how the information contained in genomes is translated into cellular function. The cisregulatory sequences control when, where, and how much genes are transcribed and can activate (enhancers) or repress (silencers) gene expression. Here, we describe a novel Tol2 transposon-based vector for assessing enhancer activity in the zebrafish (Danio rerio). This Zebrafish Enhancer Detector (ZED) vector harbors several key improvements, among them a sensitive and specific minimal promoter chosen for optimal enhancer activity detection, insulator sequences to shield the minimal promoter from position effects, and a positive control for transgenesis. Additionally, we demonstrate that highly conserved noncoding sequences homologous between humans and zebrafish largely with enhancer activity largely retain their tissue-specific enhancer activity during vertebrate evolution. More strikingly, insulator sequences from mouse and chicken, but not conserved in zebrafish, maintain their insulator capacity when tested in this model.
Versión del editorhttp://dx.doi.org/ 10.1002/dvdy.22051
URI http://hdl.handle.net/10261/40211
DOI10.1002/dvdy.22051
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