The complete chloroplast genome of horned holly, Ilex cornuta Lindl. (Aquifoliaceae)

摘要

Ilex cornuta Lindl. is a species distributed in eastern China and Korea, utilized as traditional medical plants as well as horticultural species. Here, we completed chloroplast genome of I. cornuta . Its length is 157,224?bp long and has four subregions: 86,610?bp of large single copy (LSC) and 18,429?bp of small single copy (SSC) regions are separated by 26,092?bp of inverted repeat (IR) regions including 131 genes (86 protein-coding genes, eight rRNAs, and 37 tRNAs). The overall GC content of this chloroplast genome is 37.7% and those in the LSC, SSC, and IR regions are 35.7%, 31.9%, and 42.9%, respectively. Phylogenetic trees show that I. cornuta is clustered in Section Ilex clade clearly. In addition, two Ilex species from South America are not in a basal clade, which is different from previous phylogenetic study, suggesting more Ilex chloroplast genomes are required to understand phylogenetic relationships of Ilex species.