Since Avr-Pik and AvrPiz-t genes are highly expressed during infection, and studies of two M. oryzae isolate-specific sequences and Verticillium dahliae indicated that lineage-specific genomic regions are enriched in genes encoding new effectors [35], we explored the expression patterns of 645 small candidate effectors in 98–06 through CAST assay. Here, TBXT is linked to infection.