Characterization and phylogenetic analysis of the chloroplast genome in Elaeocarpus duclouxii.

Abstract

Elaeocarpus duclouxii, an evergreen tree species, is renowned for its fruits rich in flavonoids exhibiting potent antioxidant properties. Despite its significance, the chloroplast genome of this plant has remained unexplored until now. Our study presents the first comprehensive sequencing and analysis of the E. duclouxii chloroplast genome, revealing a circular DNA molecule of 158,148 base pairs. This genome comprises a large single-copy region of 85,700 base pairs, a small single-copy region of 17,672 base pairs, and a pair of inverted repeat regions totaling 27,388 base pairs. The genome encodes 132 genes, including 87 protein-coding genes, 37 transfer RNA genes, and 8 ribosomal RNA genes. Phylogenetic analyses indicate a close evolutionary relationship between E. duclouxii and E. sylvestris. This study not only represents the first phylogenetic investigation of E. duclouxii but also establishes a crucial genomic foundation for future research area such as conservation genetics, evolutionary biology, and potential biotechnological applications.