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The Complete Chloroplast Genomes of Nine Smilacaceae Species from Hong Kong: Inferring Infra- and Inter-Familial Phylogeny
The Smilacaceae is a cosmopolitan family consisting of 200-370 described species. The family includes two widely accepted genera, namely and . Among them, the taxonomical status of has been continuously challenged. Seven and two species can be found in Hong Kong, with most of them having medicinal i...
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Published in: | International journal of molecular sciences 2023-04, Vol.24 (8), p.7460 |
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Main Authors: | , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The Smilacaceae is a cosmopolitan family consisting of 200-370 described species. The family includes two widely accepted genera, namely
and
. Among them, the taxonomical status of
has been continuously challenged. Seven
and two
species can be found in Hong Kong, with most of them having medicinal importance. This study aims to revisit the infra-familial and inter-familial relationships of the Smilacaceae using complete chloroplast genomes. The chloroplast genomes of the nine Smilacaceae species from Hong Kong were assembled and annotated, which had sizes of 157,885 bp to 159,007 bp; each of them was identically annotated for 132 genes, including 86 protein-coding genes, 38 transfer RNA genes, and 8 ribosomal RNA genes. The generic status of
was not supported because it was nested within the
clade in the phylogenetic trees, echoing previous molecular and morphological studies. We suggest delimitating the genus
as a section under the genus
. The results of phylogenomic analysis support the monophyly of Smilacaceae and the exclusion of
from the family. This study contributes to the systematics and taxonomy of monocotyledons, authentication of medicinal Smilacaceae, and conservation of plant diversity. |
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ISSN: | 1422-0067 1422-0067 |
DOI: | 10.3390/ijms24087460 |