Peanut Ubiquitin4 promoter enables stable transgene expression and efficient CRISPR editing
A research team led by Dr. Xiaoqin Liu at the Peking University Institute of Advanced Agricultural Sciences has discovered and characterized a native peanut Ubiquitin4 promoter (AhUBQ4) with strong and consistent transcriptional activity. Recognizing the limitations of foreign promoters like CaMV 35S in peanut transformation—such as gene silencing and expression variability—the team sought a native solution to boost genetic engineering efficiency in this vital crop.
Using transcriptome data ...