Characterization of the complete chloroplast genome of Fraxinus chiisanensis (Oleaceae), an endemic to Korea
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Fraxinus chiisanensis (Oleaceae), endemic to South Korea, is a deciduous tree and its natural populations are facing extinction due to habitat deterioration and low germination rates. Here, we characterized the complete chloroplast (cp) genome of F. chiisanensis using next-generation sequencing to provide an effective approach for achieving phylogenetic resolution and a fundamental conservation strategy. The F. chiisanensis cp genome was 155,541 bp in length with a typical quadripartite structure, including the large (86,386 bp) and small (17,767 bp) single-copy regions, separated by a pair of identical inverted repeats (25,694 bp). The genome encoded 132 genes, of which 113 were unique, including 80 protein coding genes, 29 tRNA genes, and 4 rRNA genes. The overall GC content of the cp genome was 37.9%. The Bayesian inference phylogram showed that F. chiisanensis is sister to the rest of the tribe Oleeae within Oleaceae.
KeywordsChloroplast genome Endemic species Fraxinus chiisanensis Oleaceae Oleeae Phylogenetic relationship
This work was supported by grants from Scientific research (KNA1-2-13,14-2) of Korea National Arboretum.
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