The complete chloroplast genome sequence and phylogenetic analysis of Ilex × Koehneana ‘Wirt L. Winn’ (Aquifoliaceae)

Abstract

Ilex × Koehneana ‘Wirt L. Winn’, an important ornamental tree, has been widely distributed in southeastern China. In this study, we assembled and characterized the complete chloroplast (cp) genome of I. Koehneana to investigate its phylogenetic relationship. The whole cp genome of I. Koehneana is 157,538 bp, which contained a large single-copy (LSC) region of 87,055 bp and a small single-copy (SSC) region of 18,429 bp, and a pair of inverted repeats (IR) of 52,054 bp. A total of 137 genes, including 90 protein-coding genes, eight rRNAs, and 39 tRNAs, were identified. Phylogenetic analysis based on 74 conserved protein-coding genes revealed that I. Koehneana is closely related to I. ‘tall boy’.

Keywords

• ilex × koehneana ‘wirt l. winn’
• chloroplast genome
• phylogenetic analysis