Relative cellular viability and conjugational recombination proficiency of ΔrecQ and ΔxonA derivatives of wild-type, recB1080, recD and recD recB1080 strains.

aWild-type cellular viability of 1.0 corresponds to 1.3×108 of colony formers per ml at OD600 of 0.3.bWild type frequency of 1.0 corresponds to 11.3 Pro+ transconjugants per 100 Hfr3000 cells. Recombination frequency was corrected for the viability of recipients.a. 野生型细胞存活率取值为1.0时，对应光密度600nm（OD600）为0.3的条件下，每毫升含有1.3×10^8个菌落形成单位。b. 野生型频率取值为1.0时，对应每100个Hfr3000细胞可获得11.3个Pro+转接合子；重组频率已针对受体细胞的存活率完成校正。