A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis

Abstract Background Angelica L. sensu lato is a taxonomically complex genus, and many studies have utilized morphological and molecular features to resolve its classification issues. In Taiwan, there are six taxa within Angelica, and their taxonomic treatments have been a subject of controversy. In...

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Main Authors: Jenn-Che Wang, Hung-Hsin Chen, Tsai-Wen Hsu, Kuo-Hsiang Hung, Chi-Chun Huang
Format: Article
Language:English
Published: SpringerOpen 2024-01-01
Series:Botanical Studies
Subjects:
Online Access:https://doi.org/10.1186/s40529-023-00407-7
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author Jenn-Che Wang
Hung-Hsin Chen
Tsai-Wen Hsu
Kuo-Hsiang Hung
Chi-Chun Huang
author_facet Jenn-Che Wang
Hung-Hsin Chen
Tsai-Wen Hsu
Kuo-Hsiang Hung
Chi-Chun Huang
author_sort Jenn-Che Wang
collection DOAJ
description Abstract Background Angelica L. sensu lato is a taxonomically complex genus, and many studies have utilized morphological and molecular features to resolve its classification issues. In Taiwan, there are six taxa within Angelica, and their taxonomic treatments have been a subject of controversy. In this study, we conducted a comprehensive analysis incorporating morphological and molecular (cpDNA and nrDNA) characteristics to revise the taxonomic treatments of Angelica in Taiwan. Results As a result of our research, we have revised the classification between A. dahurica var. formosana and A. pubescens and merged two varieties of A. morrisonicola into a single taxon. A new taxon, A. aliensis, has been identified and found to share a close relationship with A. tarokoensis. Based on the morphological and molecular characteristics data, it has been determined that the former three taxa should be grouped into the Eurasian Angelica clade, while the remaining four taxa should belong to the littoral Angelica clade. Furthermore, Angelica species in Taiwan distributed at higher altitudes displayed higher genetic diversity, implying that the central mountain range of Taiwan serves as a significant reservoir of plant biodiversity. Genetic drift, such as bottlenecks, has been identified as a potential factor leading to the fixation or reduction of genetic diversity of populations in most Angelica species. We provide key to taxa, synopsis, phenology, and distribution for each taxon of Taiwan. Conclusions Our comprehensive analysis of morphological and molecular features has shed light on the taxonomic complexities within Angelica in Taiwan, resolving taxonomic issues and providing valuable insights into the phylogenetic relationships of Angelica in Taiwan.
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spelling doaj.art-bb96a6104ff3457d8afadaf25645ff372024-03-05T16:23:47ZengSpringerOpenBotanical Studies1999-31102024-01-0165111810.1186/s40529-023-00407-7A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensisJenn-Che Wang0Hung-Hsin Chen1Tsai-Wen Hsu2Kuo-Hsiang Hung3Chi-Chun Huang4Department of Life Science, National Taiwan Normal UniversityDepartment of Life Science, National Taiwan Normal UniversityWild Plants Division, Taiwan Biodiversity Research InstituteGraduate Institute of Bioresources, Pingtung University of Science and TechnologyWild Plants Division, Taiwan Biodiversity Research InstituteAbstract Background Angelica L. sensu lato is a taxonomically complex genus, and many studies have utilized morphological and molecular features to resolve its classification issues. In Taiwan, there are six taxa within Angelica, and their taxonomic treatments have been a subject of controversy. In this study, we conducted a comprehensive analysis incorporating morphological and molecular (cpDNA and nrDNA) characteristics to revise the taxonomic treatments of Angelica in Taiwan. Results As a result of our research, we have revised the classification between A. dahurica var. formosana and A. pubescens and merged two varieties of A. morrisonicola into a single taxon. A new taxon, A. aliensis, has been identified and found to share a close relationship with A. tarokoensis. Based on the morphological and molecular characteristics data, it has been determined that the former three taxa should be grouped into the Eurasian Angelica clade, while the remaining four taxa should belong to the littoral Angelica clade. Furthermore, Angelica species in Taiwan distributed at higher altitudes displayed higher genetic diversity, implying that the central mountain range of Taiwan serves as a significant reservoir of plant biodiversity. Genetic drift, such as bottlenecks, has been identified as a potential factor leading to the fixation or reduction of genetic diversity of populations in most Angelica species. We provide key to taxa, synopsis, phenology, and distribution for each taxon of Taiwan. Conclusions Our comprehensive analysis of morphological and molecular features has shed light on the taxonomic complexities within Angelica in Taiwan, resolving taxonomic issues and providing valuable insights into the phylogenetic relationships of Angelica in Taiwan.https://doi.org/10.1186/s40529-023-00407-7AngelicacpDNAnrDNATaxonomic revisionTaiwan
spellingShingle Jenn-Che Wang
Hung-Hsin Chen
Tsai-Wen Hsu
Kuo-Hsiang Hung
Chi-Chun Huang
A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
Botanical Studies
Angelica
cpDNA
nrDNA
Taxonomic revision
Taiwan
title A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
title_full A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
title_fullStr A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
title_full_unstemmed A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
title_short A taxonomic revision of the genus Angelica (Apiaceae) in Taiwan with a new species A. aliensis
title_sort taxonomic revision of the genus angelica apiaceae in taiwan with a new species a aliensis
topic Angelica
cpDNA
nrDNA
Taxonomic revision
Taiwan
url https://doi.org/10.1186/s40529-023-00407-7
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