Plastome structure and phylogeny of Gnetum luofuense C.Y. Cheng (Gnetaceae, Gnetales)

Abstract

This article describes the complete chloroplast genome of Gnetum luofuense. The G. luofense plastome was 114,795 bp in length, containing a large single copy region (66,103 bp) and a small single copy region (9438 bp), separated by two inverted repeat regions (19,627 bp). The genome lost all ndh genes and contained 116 genes, including 68 protein-coding genes, 40 tRNA genes, and eight rRNA genes. The GC content was 33.3%, 12 genes all contained an intron, ycf3 gene contained two introns while rps12 was a transpliced gene. Phylogenetic analysis using 61 concatenated protein-coding genes suggests that G. luofuense with the rest of other gnetophytes were sister to or nested within all conifers.

Keywords:

• Gnetaceae
• Gnetales
• Gnetum luofuense
• complete chloroplast genome
• plastome

Disclosure statement

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

Data availability statement

All chloroplast genome sequences generated and used in this study are accessible via NCBI GenBank database. The complete nucleotide sequence of G. luofuense plastome was deposited in NCBI GenBank with accession number MT663149 (https://www.ncbi.nlm.nih.gov/nuccore/MT663149).

Additional information

Funding

This research was supported by CAS-TWAS President’s Fellowship, Fourth National Survey of Chinese Traditional Medicine Resources Project [GZY-KJS-2018-004], and National Science Foundation of China [31870206].