Meynell E, Ewins A
J Bacteriol. 1973 Jan;113(1):71-5. doi: 10.1128/jb.113.1.71-75.1973.
Chromosomal genes from an Hfr donor, dependent for their transfer upon the integrated F factor, were not excluded by an F(+) recipient when the donor also carried an F-like R factor, and its sex pili contained, in addition to F pilin, another pilin of a different specificity.
来自高频重组(Hfr)供体的染色体基因,其转移依赖于整合的F因子,当供体还携带一个F样R因子且其性菌毛除了含有F菌毛蛋白外还含有另一种不同特异性的菌毛蛋白时,不会被F(+)受体排除。