ZFIN ID: ZDB-PUB-160129-16
A Plasmid Set for Efficient Bacterial Artificial Chromosome (BAC) Transgenesis in Zebrafish
Fuentes, F., Reynolds, E., Lewellis, S.W., Venkiteswaran, G., Knaut, H.
Date: 2016
Source: G3 (Bethesda)   6(4): 829-34 (Journal)
Registered Authors: Fuentes, Fernando, Knaut, Holger, Lewellis, Stephen, Venkiteswaran, Gayatri
Keywords: BAC transgenesis, gene expression, zebrafish
MeSH Terms:
  • Animals
  • Animals, Genetically Modified
  • Chromosomes, Artificial, Bacterial*
  • Embryo, Nonmammalian/metabolism
  • Gene Expression
  • Gene Order
  • Gene Targeting
  • Gene Transfer Techniques*
  • Genetic Vectors/genetics
  • Plasmids/genetics*
  • Transgenes*
  • Zebrafish/genetics*
PubMed: 26818072 Full text @ G3 (Bethesda)
Transgenesis of large DNA constructs is essential for gene function analysis. Recently, Tol2 transposase-mediated transgenesis has emerged as a powerful tool to insert bacterial artificial chromosome (BAC) DNA constructs into the genome of zebrafish. For efficient transgenesis, the genomic DNA piece in the BAC construct needs to be flanked by Tol2 transposon sites and the constructs should contain a transgenesis marker for easy identification of transgenic animals. We report a set of plasmids that contain targeting cassettes that allow the insertion of Tol2 sites and different transgenesis markers into BACs. Using BACs containing these targeting cassettes, we show that transgenesis is as efficient as iTol2, that pre-selecting for expression of the transgenesis marker increases the transgenesis rate and that BAC transgenics faithfully recapitulate the endogenous gene expression patterns and allow for the estimation of the endogenous gene expression levels.