LYST and infection: Post-infection with P. cubensis, the expression levels of several pivotal genes, including one chalcone synthase (CHS) gene (MELO3C014767.2), two flavonol synthase (FLS) genes (MELO3C018422.2 and MELO3C032760.2), two chalcone isomerase (CHI) genes (MELO3C020146.2 and MELO3C025484.2), and one naringenin 3-dioxygenase (F3H) gene (MELO3C035229.2), were observed to be markedly suppressed in both cultivars.