Impacts of biotype on the infection frequency of S-symbionts in the field populations of B. tabaci (B biotype: 17 populations, 456 adults in total; Q biotype: 44 populations, 1149 adults in total)*.

*The frequencies in columns sharing the same upper case letter are not significantly different at PRH or RHC) were calculated by multiplying the infection frequencies of whiteflies by each of the two or three symbionts. The expected (exp) and observed (obs) co-infection frequencies that share the same lower case letter are not significantly different at P

*具有相同大写字母的列所对应的频率，通过将烟粉虱的感染频率分别与两种或三种共生菌的感染频率相乘计算得到，且该类频率在PRH或RHC检验下无显著差异。具有相同小写字母的预期（exp）与观测（obs）共感染频率，在P水平下无显著差异。