Synergistic effect of amino acid substitutions in CYP51B for prochloraz resistance in Fusarium fujikuroi

Autor: FangJing Li, Akio Ebihara, Yuri Sakahara, Sarara Matsumoto, Reina Ueno, WanXue Bao, Makoto Kimura, Shin-ichi Fuji, Masafumi Shimizu, Koji Kageyama, Haruhisa Suga
Rok vydání: 2022
Předmět:
Zdroj: Pesticide biochemistry and physiology. 189
ISSN: 1095-9939
Popis: Prochloraz has been used to control Fusarium fujikuroi, the causative pathogen of rice bakanae disease. Linkage analysis of FfCYP51 genes in the progenies obtained from crossing prochloraz moderately resistant and sensitive strains suggested that the FfCYP51B gene is involved in prochloraz resistance. Sequence comparison revealed that the prochloraz-resistant strain had an F511S or S312T/F511S substitution in FfCYP51B compared with the sensitive strains. The contribution of the S312T and F511S substitutions in FfCYP51B to prochloraz resistance was investigated by creating S/F-, T/F-, or T/S- types at 312/511 codons from the S/S-type, which is a natural moderately resistant strain, using a gene-editing technique. T/S exhibited the highest prochloraz resistance, followed by S/S-, T/F-, and S/F-types. These results indicated that the S312T and F511S substitutions in FfCYP51B had a synergistic effect on prochloraz resistance in F. fujikuroi.
Databáze: OpenAIRE