Table 5.
χ 2 analysis showing statistically significant differences between the number of core and accessory genes from different COG functions within each Xylella fastidiosa subspecies
| Subspecies | Functional group | Accessory sum | Core sum |
|---|---|---|---|
| Xylella fastidiosa subsp. fastidiosa | Cellular Processes and Signaling (CPS) | 9,214 | 28,475 |
| Information Storage and Processing (ISP) | 8,159 | 31,538 | |
| Metabolism (M) | 17,018 | 56,590 | |
| Multiple categories (MU) | 1,719 | 5,301 | |
| Poorly characterized (P) | 166,938 | 124,154 | |
| χ2 = 49,336, df = 4, P < 2.2 × 10−16* | |||
| Xylella fastidiosa subsp. multiplex | Cellular Processes and Signaling (CPS) | 3,086 | 3,132 |
| Information Storage and Processing (ISP) | 2,906 | 3,817 | |
| Metabolism (M) | 6,186 | 6,185 | |
| Multiple categories (MU) | 572 | 633 | |
| Poorly characterized (P) | 33,890 | 17,239 | |
| χ2 = 2,503.1, df = 4, P < 2.2 × 10−16* | |||
| Xylella fastidiosa subsp. pauca | Cellular Processes and Signaling (CPS) | 14,599 | 6,416 |
| Information Storage and Processing (ISP) | 14,937 | 6,823 | |
| Metabolism (M) | 27,773 | 12,422 | |
| Multiple categories (MU) | 2,728 | 1,043 | |
| Poorly characterized (P) | 136,883 | 25,835 | |
| χ2 = 7,591.9, df = 4, P < 2.2 × 10−16* | |||
Accessory sum, sum of accessory genes from all isolates within each subspecies; Core sum, sum of core genes from all isolates within each subspecies. Bold values correspond to p-values < 0.05. These values have also been marked with asterisk (*).
*
Statistically significant differences.