Yujin JeonP, Young-Kee Kim, and Jun-Ho Song

Department of Biology, Chungbuk National University, Cheongju, Korea

The genus Lamium L. (Lamiaceae) is the type genus of subfamily Lamioideae Harley and comprises approximately 16—40 species. Members of the genus are primarily distributed in the temperate and subtropical regions of Asia, North Africa, and Europe and some species have become introduced in various areas. In this study, the complete chloroplast genome of Lamium purpureum L. var. purpureum was newly sequenced. The chloroplast genome is 150,474 bp in length, with a GC content of 38.6%. The genome had a typical quadripartite structure and was composed of two inverted repeats (IRs; 25,506 bp), a large single-copy region (LSC; 82,459 bp), and a small single-copy region (SSC; 17,004 bp). It contained 117 unique genes, including 80 protein-coding genes, 33 transfer RNA genes, and four ribosomal RNA genes. Genetic divergence analysis revealed that the atpE-ndhC region exhibited the highest nucleotide diversity (π = 0.11226). The phylogenetic analysis based on complete chloroplast genomes indicated that Lamium forms a monophyletic group. These results represent the first complete chloroplast genome report for L. purpureum var. purpureum and offer valuable information for further studies of the genus.

* This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (RS-2023-00208589).