Genomic Differences Between Two Formae Speciales Causing Root Rot in Cucumber.

The host specificity of () formae speciales has been reported to be linked to effector proteins known as Secreted in Xylem (SIX). These genes are associated with the non-autonomous mobile element miniature impala (), normally distributed on the accessory chromosomes. The pattern of associated with effector genes has been used to predict candidate effector profiles which characterize formae speciales.