Characterization of the complete plastid genome of Korean endemic, Ajuga spectabilis Nakai (Lamiaceae)

Abstract

Ajuga spectabilis Nakai is a Korean endemic species in Lamiaceae. In spite of its importance, genomic studies are not performed on this species. Here, we report the complete plastid genome sequences of A. spectabilis, which will provide valuable information for its natural conservation and future studies for the plastid genome evolution. The plastid genome is 150,417 bp in length, containing a large single-copy region (LSC) of 82,140 bp and a small single-copy (SSC) region of 17,165 bp which are separated by a pair of inverted repeats (IR) of 25,556 bp. It encodes 113 genes, including 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. The overall GC content is 38.3%, and those in the LSC, SSC, and IR regions are 36.4%, 32.2%, and 43.3%, respectively, which is consistent with other Ajuga species. Our phylogenetic analysis revealed that A. spectabilis formed a close relationship with A. ciliata and A. decumbens.

Keywords:

• Plastid genome
• Korean endemic
• Ajuga spectabilis
• Lamiaceae
• phylogenetic analyses

Acknowledgments

We would like to thank Tae-Hee Kim in Korean National Arboretum, and Ju Namgung in Gachon University (South Korea) for collecting samples used in this study.

Ethics approval and consent to participate

The material used in this study is widely distributed in Mt. Hwaya and does not belong to the IUCN Red List. No specific permits were required for plant collection. The study did not require ethical approval or consent, as no endangered or protected plant species were involved.

Credit authorship contribution statement

KK & JJ: Experimentation, Formal analysis, Data curation and interpretation, Writing- original draft. HJK & CYY: Project administration and design of the work. JHK: Conceptualization, Supervision, Writing-Review & Draft approval. All authors have read and approved the manuscript for publication, and all authors agreed to be accountable for all aspects of the work.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The complete chloroplast genome sequence we obtained from this study was archived in NCBI https://www.ncbi.nlm.nih.gov/nuccore/ON620078 under accession no. ON620078. The associated Bio project, SRA, and Bio-sample numbers are PRJNA847375, SRR19592548, and SAMN28933299 respectively.

Additional information

Funding

This work was supported by grants [KNA1-1-13, 14-1] received from the Scientific research of Korea National Arboretum and the Gachon University research fund of 2019 (GCU-2019-0821).