Complete plastome sequence of castanopsis hainanensis merr.1922: an endemic species in hainan

Abstract

This Castanopsis hainanensis Merr.1922, a tree species native to Hainan province, possesses desirable characteristics such as firmness, density, and resistance to water and humidity. It is commonly used in the construction of beams, columns, floors, furniture, and agricultural tools. In this study, we present a comprehensive analysis of the complete plastome of C. hainanensis. The total length of the plastome is 160,826 bp, which includes a Large Single-Copy (LSC) region, a Small Single-Copy (SSC) region, and two Inverted Repeats (IRs). The lengths of the IR regions are 90,471 bp, 18,957 bp, and 25,699 bp, respectively. The plastome contains a total of 261 genes, including 130 protein-coding genes (with sixteen genes duplicated in the IR), 37 tRNA genes (with seven genes duplicated in the IR), and eight rRNA genes (5S rRNA, 4.5S rRNA, 16S rRNA, and 23S rRNA). The overall G/C content in the plastome of C. hainanensis is 35.9%. This comprehensive analysis provides valuable insights into the genetic composition and organization of the plastome of C. hainanensis, contributing to our understanding of the evolutionary and functional aspects of this species.