TABLE 2.
ANOSIM and PERMANOVA statistics and their respective mean P valuesa
Serotype(s) | Grouping factor/responseb | ANOSIM |
PERMANOVA |
||
---|---|---|---|---|---|
R statistic | Mean uncorrected P value | F statistic | Mean uncorrected P value | ||
Antimicrobial resistance gene sequences | |||||
All | Serotype | 0.234c | <0.001c | 15.598d | <0.001d |
Typhimurium | Source | 0.079 | 0.040 | 2.937 | 0.020 |
Typhimurium | Location | 0.045 | 0.105 | 2.093 | 0.074 |
Newport | Source | 0.034 | 0.169 | 3.405 | 0.004 |
Newport | Location | 0.241c | 0.002c | 3.185 | 0.008 |
Dublin | Source | 0.041 | 0.188 | 1.578 | 0.231 |
Dublin | Location | 0.145 | 0.064 | 5.366 | 0.004 |
Phenotypic antimicrobial resistance/susceptibility profiles | |||||
All | Serotype | 0.200c | <0.001c | 1.037 | 0.433 |
Typhimurium | Source | 0.122 | 0.015 | 6.796 | 0.012 |
Typhimurium | Location | −0.003 | 0.417 | 0.181 | 0.727 |
Newport | Source | −0.030 | 1.000 | 1.739 | 0.053 |
Newport | Location | 0.103 | 0.072 | 1.699 | 0.074 |
Dublin | Source | 0.089 | 0.053 | 1.060 | 0.477 |
Dublin | Location | 0.481c | <0.001c | 4.717d | <0.001d |
Plasmid replicon presence/absence profiles | |||||
All | Serotype | 0.350c | <0.001c | 21.800d | <0.001d |
Typhimurium | Source | 0.025 | 0.201 | −0.299 | 0.853 |
Typhimurium | Location | 0.107 | 0.009 | 6.077 | 0.011 |
Newport | Source | −0.030 | 0.934 | 2.118 | 0.042 |
Newport | Location | 0.098 | 0.074 | 1.572 | 0.105 |
Dublin | Source | 0.040 | 0.146 | 1.521 | 0.116 |
Dublin | Location | 0.408c | <0.001c | 4.466d | <0.001d |
Rows in boldface indicate that at least one test was significant (P < 0.05) after a Holm-Bonferroni correction was applied.
Grouping factors used were serotype (only for “All isolates”), source (bovine or human), and location (New York or Washington State).
Significant ANOSIM test (P < 0.05) after a Holm-Bonferroni correction was applied.
Significant PERMANOVA test (P < 0.05) after a Holm-Bonferroni correction was applied.