Abstract
Melastoma dodecandrum, the only creeping species in the Melastoma genus, serves as a medicinal herb in southeast China. It belongs to the huge family Melastomataceae, which contains over 5000 species worldwide. In this study, we used next-generation sequencing to determine the complete chloroplast genome sequences of M. dodecandrum, which is a circular molecule of 156,611 bp in length. After annotation, we identified 131 putative genes in total, comprised of 85 protein-coding genes, 38 transfer RNA genes and 8 ribosomal RNA genes. Genome structure, GC content, repeat sequences and codon usage were investigated to gain a comprehensive understanding of this genome. Furthermore, we conducted comparative genome analyses between the M. dodecandrum genome and that of four other Melastomataceae species. Additionally, a phylogenetic analysis was performed based on available chloroplast genomes of Melastomataceae species and several Myrtaceae species, revealing the taxonomic relationships between M. dodecandrum and related species. In conclusion, our study represents the first look into the complete chloroplast genome of M. dodecandrum, providing abundant information for further studies such as species identification, taxonomy and phylogenetic resolution of Melastomataceae species.
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Abbreviations
- cp:
-
Chloroplast
- gDNA:
-
Genomic DNA
- IR:
-
Inverted repeat
- LSC:
-
Large single copy
- ML:
-
Maximum likelihood
- NCBI:
-
National Center for Biotechnology Information
- NGS:
-
Next generation sequencing
- NJ:
-
Neighbor-joining
- SSC:
-
Small single copy
- SSR:
-
Simple sequence repeats
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Zheng, X., Ren, C., Huang, S. et al. Structure and features of the complete chloroplast genome of Melastoma dodecandrum. Physiol Mol Biol Plants 25, 1043–1054 (2019). https://doi.org/10.1007/s12298-019-00651-x
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DOI: https://doi.org/10.1007/s12298-019-00651-x