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Abstract
The complete chloroplast genome (cpDNA) sequence of an endemic conifer species, Armand pine Pinus armandii Franch., is determined in this study. The cpDNA was 117,265 bp in length, containing a pair of 475 bp inverted repeat (IR) regions those distinguished in large and small single copy (LSC and SSC) regions of 64,548 and 51,767 bp in length, respectively. The cpDNA contained 114 genes, including 74 protein-coding genes (74 PCG species), 4 ribosomal RNA genes (four rRNA species) and 36 transfer RNA genes (33 tRNA species). Out of these genes, 12 harbor a single intron and most of the genes occurred in a single copy. The overall AT content of the Armand pine cpDNA was 61.2%, while the corresponding values of the LSC, SSC and IR regions were 62.0%, 60.2% and 62.7%, respectively. A phylogenetic analysis revealed that P. armandii chloroplast genome is closely related to that of the P. koraiensis within the genus Pinus.
Declaration of interest
This study was co-supported by the National Natural Science Foundation of China (41101058), the Specialized Research Fund for the Doctoral Program of Higher Education (20126101120021), the Natural Science Basic Research Plan in Shaanxi Province of China (2014JQ3084), the Scientific Research Program Funded by Shaanxi Provincial Education Department (2013JK0713), the Open Foundation of Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education) (ZS14008), the Scientific Research Funds (12NW18) in Northwest University and the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT).
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.