The genome of Fusarium oxysporum infecting Camelina sativa.

Fusarium wilt, an important fungal disease worldwide, is caused by members of the Fusarium oxysporum species complex (FOSC). Host specificity in FOSC is given by differences in the effectors arsenal, including SIX (secreted in xylem) protein genes. Camelina sativa (L) Crantz, a member of Brassicaceae family has gained attention as a re-emerging oil-seed crop. Fusarium wilt symptoms reported on the crop in 2018 led to the isolation of Fusarium oxysporum strains from camelina seeds. Koch's postulates proved the ability of two Fusarium oxysporum isolates to cause Fusarium wilt on camelina. Genome analysis (genome size 57.3 Mb)showed a unique SIX gene profile of the strains that may explain the differential infection capacity of different Brassicaceae plants. The strains are therefore different from other FOSC infecting Brassicaceae, including Fusarium oxysporum f.sp. raphani and conglutinans, suggesting the existence of a further differentiation within formae specials infecting this important plant family.