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

Xinran Chong; Yunlong Li; Yanwei Zhou; Hong Chen; Xinzhi Li; Naiwei Li; Xiaoqing Lu; Fan Zhang

doi:10.1080/23802359.2021.1882904

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

Mitochondrial DNA B Resour. 2021 Mar 11;6(3):796-797. doi: 10.1080/23802359.2021.1882904.

Authors

Xinran Chong¹, Yunlong Li¹, Yanwei Zhou¹, Hong Chen¹, Xinzhi Li², Naiwei Li¹, Xiaoqing Lu¹, Fan Zhang¹

Affiliations

¹ Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, PR China.
² Jiangsu Forestry Bureau, Nanjing, Jiangsu, PR China.

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.

Grants and funding

This work was supported by the Jiangsu Key Laboratory for the Research and Utilization of Plant Resources under grant No. [JSPKLB201805] and the Forestry Science and Technology Popularization Demonstration Project of the central finance [Su(2018)TG001].