The complete plastid genome sequence of Ilex suaveolens (H. Lév.) Loes, the most abundant medicinal holly in Mount Huangshan

Abstract

Holly (Ilex L.) is a woody dioecious genus cultivated as pharmaceutical, ornamentals, and industrial materials. Ilex suaveolens (H. Lév.) Loes is an endemic medicinal holly with a predominant distribution in Mount Huangshan, China. In the present work, the complete plastid genome of I. suaveolens was de novo sequenced by high-throughput sequencing technology. The newly-assembled plastid genome holds 37.6% of the overall GC content and a length of 157,857 bp, comprising a large single-copy (LSC, 87,255 bp), a small single-copy (SSC, 18,398 bp), and a pair of inverted repeat (IRs, 26,102 bp) regions. The plastid genome annotation suggested the presence of a total of 89 protein-encoding genes, 37 transfer RNA (tRNA) genes, and eight ribosomal RNA (rRNA) genes. The plastome-mediated phylogenetic topology revealed that I. suaveolens clustered together with I. szechwanenesis and I. viridis in the same clade, and a strong relationship between clades and biogeography was found. These data contribute to the understanding of genetic diversity and conservation study of Ilex in Mount Huangshan.

Keywords:

• Ilex suaveolens
• plastid genome
• phylogenetic analysis
• genetic diversity
• conservation

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The complete plastid genome data that support the findings of this study are openly available in the GenBank of NCBI (https://www.ncbi.nlm.nih.gov/) under the accession number of MN830249. The raw sequence reads have been deposited in GSA database (https://bigd.big.ac.cn/gsa/) associated with the accession number of CRR147931.

Additional information

Funding

This research was supported by the National Natural Science Foundation of China [31700525];The Scientific Research Foundation for High-Level Talents of Nanjing Forestry University [GXL2017011; GXL2017012]; The Undergraduate Innovation and Entrepreneurship Training Programs [201910298115Y; 2020NFUSPITP0819].