Phenotype and Genotype. (A) Disease symptoms caused by XAC, XauB, and XauC on leaves of three different citrus species. The lesions caused by XAC and XauB are similar but differ in size. XauC causes a hypersensitive response in C. limonia and C. sinensis, with C. aurantifolia as a true host. The pictures were taken 21 days after inoculation. (B) Venn diagram showing the numbers of protein-coding orthologous genes shared among the three strains.
Moreira et al. BMC Genomics 2010 11:238 doi:10.1186/1471-2164-11-238