Bäumler A J, Heffron F
Department of Medical Microbiology and Immunology, Texas A&M University, College Station 77843-1114, USA.
J Bacteriol. 1998 Apr;180(8):2220-3. doi: 10.1128/JB.180.8.2220-2223.1998.
The Salmonella enterica smpB-nrdE intergenic region contains about 45 kb of DNA that is not present in Escherichia coli. This DNA region was not introduced by a single horizontal transfer event, but was generated by multiple insertions and/or deletions that gave rise to a mosaic structure in this area of the chromosome.
肠炎沙门氏菌的smpB - nrdE基因间区域包含约45 kb的DNA,这在大肠杆菌中不存在。该DNA区域并非由单一的水平转移事件引入,而是由多次插入和/或缺失产生,这些插入和/或缺失在染色体的这一区域形成了镶嵌结构。