The virulence plasmid associated with AHPND in shrimp appears to have originated from Vibrio owensii through a process of homologous recombination of parental plasmids and the transposable insertion of two large fragments - Yesheng Yan; Haojie Lu; Xiaosha Liang; Tianqi Xu; Shuling Yan; Yongxin Yu; Yongjie Wang (Journal of Invertebrate Pathology, 2024)