The complete chloroplast genome of ornamental plant Hosta ensata (Asparagaceae)

Abstract

Hosta ensata (Asparagaceae) is a perennial plant with great value for its decorative leaves and colorful flowers, which is massively cultivated in parks and gardens for ornamental purposes. Here, the complete chloroplast genome of the H. ensata has been constructed from the Illumina sequencing data. The circular cp genome is 156,712 bp in size and comprises of a pair of inverted repeat (IR) regions of 24,646 bp each, a large single-copy (LSC) region of 85,284 bp, and a small single-copy (SSC) region of 22,136 bp. The total GC content is 37.8%, while the corresponding values of the LSC, SSC, and IR regions are 35.9, 33.1, and 43.3%, respectively. The chloroplast genome contains 131 genes, including 85 protein-coding genes, 8 ribosomal RNA genes, and 38 transfer RNA genes. The maximum-likelihood phylogenetic analysis showed a strong sister relationship with Hosta yingeri and Hosta capitata in Hosta. Our findings provide a foundation for further investigation of chloroplast genome evolution in ornamental plant Hosta.

Keywords

• hosta ensata
• illumina sequencing
• phylogenetic analysis
• chloroplast genome