노산부용(H. paramutabilis)의 엽록체 유전체 조립 및

주요 아욱과 식물 종 간 유전구조·계통학적 분석

장소정*, 문영범, 신한나

(국립산림과학원 산림생명자원연구부 임목자원연구과)

Complete Chloroplast Genome Assembly of Hibiscus paramutabilis and Comparative Analysis of the Malvaceae Family

So Jung Jang*, Young-bum Moon, Hanna Shin

(Department of Forest Bio-resources, National Institute of Forest Science)

Abstract: Hibiscus paramutabilis L. H. Bailey is a woody ornamental species of the family Malvaceae, native to southeastern China, and is notable for its large flowers and extended flowering period under temperate climatic conditions. Despite increasing availability of chloroplast (cp) genome data for the genus Hibiscus, the cp genome of H. paramutabilis has not yet been reported. In this study, we assembled the complete cp genome of H. paramutabilis and conducted comparative analyses of genome structure and phylogenetic relationships within the family Malvaceae. The cp genome was 160,933 bp in length and comprised 129 unique genes, including 45 genes related to photosynthesis 74 genes involved in transcription and translation, and 10 genes associated with other metabolic and regulatory functions. Comparative analyses with three other woody Hibiscus species native to East Asia (H. syriacus, H. sinosyriacus, and H. taiwanesis) showed that the cp genome structure of H. paramutabilis was most similar to that of H. taiwanesis. Phylogenetic analysis based on coding sequence (CDS) regions across Malvaceae species further revealed that H. paramutabilis, H. mutabilis, and H. taiwanensis formed a clade more closely related to the genus Abelmoschus, whereas H. syriacus and H. sinosyriacus showed closer affinity to species of the genus Gossypium, despite their geographic proximity. These results provide insights into the phylogenetic relationships and systematic classification of the genus Hibiscus within the family Malvaceae.

Acknowledgement: This study was supported by the Research Program of National Institute of Forest Science (Grant number FG0403-2023-02-2025).

Keywords: Hibiscus paramutabilis, complete chloroplast genome, family Malvaceae, genome structure, phylogenetic analysis