Journal
MITOCHONDRIAL DNA PART B-RESOURCES
Volume 6, Issue 9, Pages 2725-2726Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/23802359.2021.1955769
Keywords
Cardamine amaraeformis; chloroplast genome; Brassicaceae; phylogenetic tree
Categories
Funding
- Korea National Arboretum, Republic of Korea [KNA1-1-13, 14-1]
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The study sequenced and characterized the complete chloroplast genome of Cardamine amaraeformis, aiding in distinguishing it from C. scutata and revealing its phylogenetic relationship within the Cardamine lineage.
The plant Cardamine amaraeformis Nakai. is considered an endemic plant to Korea. However, due to the similar morphological characteristics of C. amaraeformis with C. scutata, it is not easy to distinguish these two species. Here, the complete chloroplast genome of C. amaraeformis was sequenced and characterized. The chloroplast genome of C. amaraeformis was 155,598 bp in length, comprising a large single-copy (LSC) region of 84,574 bp and a small single-copy (SSC) region of 17,976 bp and a pair of inverted repeats (IRs) of 26,524 bp. The genome contained 131 genes, including 86 protein-coding (PCGs), 37 tRNA and 8 rRNA genes. Of those, 6 PCGs, 8 tRNA and 4 rRNA genes were duplicated in the IR region and one gene was a pseudogene. The GC content of the C. amaraeformis chloroplast genome was 36.3%. Phylogenetic analysis revealed that all Cardamine species formed a monophyletic clade and C. amaraeformis was closely associated with C. parviflora. Therefore, the present study could help to distinguish C. scutata and resolve the phylogenetic relationships among the Cardamine lineage.
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