Assembly and sequence analysis of the chloroplast genome of Amorphophallus atroviridis Hett 1994

Amorphophallus is valued for its glucomannan-rich tubers and ornamental inflorescences. We sequenced the first complete chloroplast genome of Amorphophallus atroviridis Hett, 1994 using the PacBio Revio platform. The assembled chloroplast genome is 175,133 bp in length and contains a large single-copy region (94,561 bp), a small single-copy region (14,862 bp), and two inverted repeat regions (32,855 bp each). A total of 128 genes were annotated, including 84 protein-coding genes, 36 transfer RNA genes, and 8 ribosomal RNA genes. Phylogenetic analysis of 14 Araceae species confirmed a monophyletic Amorphophallus clade, with A. atroviridias closely related to five species. This study provides a fundamental resource for phylogenetic studies and further genetic research in Araceae.