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Updated: Aug 2, 2025

Recombineering Homologous Recombination Constructs in Drosophila
Published on: July 13, 2013
Perfect duet: Dual recombinases improve genetic resolution
Hongxin Li1, Wendong Weng1, Bin Zhou1,2,3,4
1State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
Abstract:
As a powerful genetic tool, site-specific recombinases (SSRs) have been widely used in genomic manipulation to elucidate cell fate plasticity in vivo, advancing research in stem cell and regeneration medicine. However, the low resolution of conventional single-recombinase-mediated lineage tracing strategies, which rely heavily on the specificity of one marker gene, has led to controversial conclusions in many scientific questions. Therefore, different SSRs systems are combined to improve the accuracy of lineage tracing. Here we review the recent advances in dual-recombinase-mediated genetic approaches, including the development of novel genetic recombination technologies and their applications in cell differentiation, proliferation, and genetic manipulation. In comparison with the single-recombinase system, we also discuss the advantages of dual-genetic strategies in solving scientific issues as well as their technical limitations.
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