Impacts of geographical location on the diversity and infection frequency of S-symbionts in the field populations of Q biotype <i>B. tabaci</i>^*.

*The frequencies in columns sharing the same upper case letter are not significantly different at P<0.017 (multiple comparisons with Bonferroni corrections). The expected (exp) and observed (obs) co-infection frequencies that share the same lower case letter are not significantly different at P<0.05 (nonparametric tests χ2).