Abstract

Pistia stratiotes is an invasive aquatic weed in South China. In this study, the first complete chloroplast (cp) genome of P. stratiotes was reported and phylogenetic analysis was conducted with Araceae species based on the cp genome sequences. The genome is a circular molecule of 164,551 bp in length with 36.00% average GC content and includes a large single-copy region (90,705 bp), a small single-copy region (21,886 bp), and two inverted repeat regions (25,980 bp). It contains a total of 129 genes, including 84 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The maximum likelihood tree indicated that P. stratiotes is related to the genus of Alocasia. The cp genome will provide useful molecular data for further phylogenetic and evolutionary analysis of P. stratiotes.