Table 4 Ecological effects of positively selected genes
Positively selected genes | Selected lineage | Related to host shift | Related to homologous recombination | Putative ecological effects |
|---|---|---|---|---|
RpfB, RpfC (XCM0813, XCM0815) | X. citri pv. citri | Yes | Yes | Altering pathogenicity to favor exploration of different host |
DsbD (XCM1788) | I2 branch | No | Yes | Increasing copper tolerance in escaping from copper-containing bactericides |
PotG (XCM0993) | X. citri pv. vesicatoria | Yes | Yes | Reducing AMF colonization of host plant and increasing infectivity |
BtuB (XCM3148) | I1 branch (X. citri pv. mangiferaeindicae) | Yes | No | Increasing iron uptake with host-shifting from citrus to mango |
HrpF (XCM1612) | I2, I3 branches | Yes | Yes | Controlling invasive routes and host specificity of X. citri |
EcpD (XCM0369) | XCM-L | No | No | Helping pili assembly and associating with virulence |
XynA (XCM1323) | I5 branch | No | No | Breaking down xylan and causing virulence |