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The complete chloroplast genome sequence of Dendrobium thyrsiflorum (Orchidaceae) and its phylogenetic analysis.

ABSTRACT: Dendrobium thyrsiflorum Rchb.f., a native species to China, is widely used as an important garden flower and a traditional Chinese medicine. Herein, the complete chloroplast (cp) genome of D. thyrsiflorum was deciphered by high-throughput sequencing. The cp genome exhibited a typical quadripartite cycle of 151,686 bp in length, comprising of a pair of inverted repeats (IRa and IRb) of 26,293 bp which were intersected by a large single copy (LSC) region of 84,749 bp and a small single copy (SSC) region of 14,351 bp. A total of 126 genes were de novo assembled in this cp genome, including 78 protein genes, 40 tRNA genes and 8 rRNA genes. Among these genes, 86 genes (22 tRNAs and 64 coding genes) were single copy, the rest were two-copy genes, and the average of GC content of the whole genome is 37.55%. Phylogenetic trees showed that the D. thyrsiflorum was closely related to D. devonianum. This study provides molecular information for future evolution, genetic and molecular biology studies of Dendrobium.

SUBMITTER: Zhu B

PROVIDER: S-EPMC7707769 | biostudies-literature |

REPOSITORIES: biostudies-literature

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