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Updated: Sep 14, 2026

Novel Sequence Discovery by Subtractive Genomics
Published on: January 25, 2019
The complete chloroplast genome sequence and phylogenetic analysis of Amorphophallus gigas
Wei Wang1, Kai Chen1, Jiamin Mu1
1Yunnan Key Laboratory of Konjac Biology, College of Agronomy, Yunnan International Joint Laboratory of Konjac Resources Conservation and Utilization, Kunming University, Kunming, China.
Abstract:
We sequenced the complete chloroplast genome of Amorphophallus gigas, a perennial monocotyledonous herb in Araceae, using HiFi technology. The genome is 173,034 bp in length with a GC content of 34.96%. It exhibits a typical quadripartite structure: a large single-copy (LSC) region of 95,283 bp, a small single-copy (SSC) region of 15,675 bp, and a pair of inverted repeat (IR) regions of 31,038 bp each. It encodes 130 genes (85 protein-coding, 37 tRNA, 8 rRNA). Phylogenetic analysis revealed that A. gigas is closely related to A. titanum, forming a distinct clade. This study provides valuable genomic resources for understanding the evolution of Amorphophallus and Araceae.
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