The complete chloroplast genome sequence of Quercus kerrii (Fagaceae), and comparative analysis with related species

Abstract

Quercus kerrii Craib 1911 (section Cyclobalanopsis) is a widespread tree species in the tropical seasonal forests of southwest China and Northern Indo-China areas. In this study, we sequenced, assembled and annotated the complete chloroplast genome of Q. kerrii. The circular genome was 160,743 bp in length and had a GC content of 36.89%. The Q. kerrii chloroplast genome has a typical quadripartite structure, including two inverted repeat regions (length, 25,825 bp; GC content, 42.76%), a large single-copy region (length, 90,196 bp; GC content, 34.74%), and a small single-copy region (length, 18,897 bp; GC content, 30.60%). Genome annotation has indicated that the Q. kerrii chloroplast genome contained 131 genes, including 86 protein-coding genes, 37 tRNA, and eight rRNA. The phylogenetic tree showed that Q. kerrii had a close relationship with Q. schottkyana Rehder & E.H.Wilson 1916.

Keywords:

• Quercus section Cyclobalanopsis
• southwest China and Northern Indo-China
• phylogenetic analysis

Author contributions

Ji-You Wu and Zhi-Hui Li designed the study; Xiao-Long Jiang collected the samples; Ze-Yi Ouyang, Xiao-Long Jiang, and Ran Chen analyzed and interpreted the data; Ze-Yi Ouyang and Xiao-Long Jiang drafted the manuscript. All authors read and approved the final version of the manuscript.

Ethics statement

Quercus kerrii was not listed as a national and provincial key protected wild plant in China nor a threatened species on the IUCN Red List. For research purpose, therefore, no specific permissions or licenses were needed for the sampling of Q. kerrii according to the regulations of the People’s Republic of China on the protection of wild plants.

Disclosure statement

The authors declare no conflict of interest.

Data availability statement

The assembly chloroplast genome sequence of Quercus kerrii is available in GenBank of NCBI (https://www.ncbi.nlm.nih.gov/) under the accession numbers OP679796.1. The associated BioProject, SRA, and Bio-Sample numbers are PRJNA891795, SRR21966525, and SAMN31336113, respectively.

Additional information

Funding

This work was supported by the Hunan Natural Science Foundation [2022JJ40861], the Education Department of Hunan Province [21A0158], and Science and Technology Research Project of Hunan Province Forestry Department [XLK201706].