Abstract
Malus prunifolia is a species of crabapple tree with high ecological and economic values. In this study, we assembled its complete chloroplast genome from high-throughput sequencing data. The circular double-stranded genome is 160,041 bp in length, and exhibits a typical quadripartite structure of the large (LSC, 88,119 bp) and small (SSC, 19,204 bp) single-copy regions, separated by a pair of inverted repeat regions (IRs, 26,359 bp each). It contains 129 genes, including 84 protein-coding genes (77 PCG species), 37 transfer RNA genes (30 tRNA species) and eight ribosomal RNA genes (four rRNA species). The nucleotide composition is asymmetric (31.32 % A, 18.64 % C, 17.92 % G & 32.12 % T) with an overall A+T content of 63.44 %. Phylogenetic analysis corroborated the traditional morphological taxonomy of the family Rosaceae, and indicated that M. prunifolia was phylogenetically closely related to the genus Pyrus.
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