Whole-genome sequencing identifies I-SceI-mediated transgene integration sites in Xenopus tropicalis snai2:eGFP line.

ABSTRACT: Transgenesis with the meganuclease I-SceI is a safe and efficient method, but the underlying mechanisms remain unclear due to the lack of information on transgene localization. Using I-SceI, we previously developed a transgenic Xenopus tropicalis line expressing enhanced green fluorescent protein driven by the neural crest-specific snai2 promoter/enhancer, which is a powerful tool for studying neural crest development and craniofacial morphogenesis. Here, we carried out whole-genome shotgun sequencing for the snai2:eGFP embryos to identify the transgene integration sites. With a 19x sequencing coverage, we estimated that 6 copies of the transgene were inserted into the Xenopus tropicalis genome in the hemizygous transgenic embryos. Two transgene integration loci adjacent to each other were

SUBMITTER: Wang J 

PROVIDER: S-EPMC9073676 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature