LvWRKY75 enhances the transcription of LvMYB5 and promotes anthocyanin biosynthesis in lily petals during the blooming phase.

Anthocyanin accumulation plays a crucial role in enhancing Lilium petal colouration; however, breeding efforts are hindered by our lack of understanding of the complex molecular mechanism behind the pigment's synthesis. This study explores the potential role of the WRKY family gene WRKY75 in anthocyanin synthesis in lilies. Contrary to the inhibitory effect observed in Arabidopsis thaliana, both transient silencing and overexpression analyses of LvWRKY75 indicate that the gene positively regulates anthocyanin synthesis in lilies.