New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes
The genus Allium, with over 900 species, is one of the largest monocotyledonous genera and is widely accepted with 15 recognized subgenera and 72 sections. The robust subgeneric and sectional relationships within Allium have long been not resolved. Based on 76 species of Allium (a total of 84 access...
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1124277/full |
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| author | JiYoung Yang Seon-Hee Kim Hee-Young Gil Hyeok-Jae Choi Seung-Chul Kim |
| author_facet | JiYoung Yang Seon-Hee Kim Hee-Young Gil Hyeok-Jae Choi Seung-Chul Kim |
| author_sort | JiYoung Yang |
| collection | DOAJ |
| description | The genus Allium, with over 900 species, is one of the largest monocotyledonous genera and is widely accepted with 15 recognized subgenera and 72 sections. The robust subgeneric and sectional relationships within Allium have long been not resolved. Based on 76 species of Allium (a total of 84 accessions), we developed a highly resolved plastome phylogenetic framework by integrating 18 newly sequenced species (20 accessions) in this study and assessed their subgeneric and sectional relationships, with special emphasis on the two subgenera Anguinum and Rhizirideum. We retrieved the three major evolutionary lines within Allium and found that the two subgenera Anguinum and Rhizirideum are monophyletic whereas others are highly polyphyletic (e.g., Allium, Cepa, Polyprason, and Melanocrommyum). Within the subgenus Anguinum, two strongly supported sublineages in East Asian and Eurasian-American were found. Allium tricoccum in North America belonged to the Eurasian clade. The distinct taxonomic status of A. ulleungense and its sister taxon were further determined. In subg. Rhizirideum, the Ulleung Island endemic A. dumebuchum shared its most recent common ancestor with the species from Mongolia and the narrow Korean endemic A. minus. Two Ulleung Island endemics were estimated to originate independently during the Pleistocene. In addition, a separate monotypic sectional treatment of the east Asian A. macrostemon (subg. Allium) and sister relationship between A. condensatum and A. chinense was suggested. |
| first_indexed | 2024-04-09T23:30:11Z |
| format | Article |
| id | doaj.art-defc06f87a514196a9d8171ef367863e |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-09T23:30:11Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-defc06f87a514196a9d8171ef367863e2023-03-21T06:07:05ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-03-011410.3389/fpls.2023.11242771124277New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomesJiYoung Yang0Seon-Hee Kim1Hee-Young Gil2Hyeok-Jae Choi3Seung-Chul Kim4Research Institute for Dok-do and Ulleung-do Island, Kyungpook National University, Daegu, Republic of KoreaDepartment of Botany, Graduate School of Science, Kyoto University, Kyoto, JapanDivision of Forest Biodiversity, Korea National Arboretum, Pocheon, Republic of KoreaDepartment of Biology and Chemistry, Changwon National University, Changwon, Republic of KoreaDepartment of Biological Sciences, Sungkyunkwan University, Suwon, Republic of KoreaThe genus Allium, with over 900 species, is one of the largest monocotyledonous genera and is widely accepted with 15 recognized subgenera and 72 sections. The robust subgeneric and sectional relationships within Allium have long been not resolved. Based on 76 species of Allium (a total of 84 accessions), we developed a highly resolved plastome phylogenetic framework by integrating 18 newly sequenced species (20 accessions) in this study and assessed their subgeneric and sectional relationships, with special emphasis on the two subgenera Anguinum and Rhizirideum. We retrieved the three major evolutionary lines within Allium and found that the two subgenera Anguinum and Rhizirideum are monophyletic whereas others are highly polyphyletic (e.g., Allium, Cepa, Polyprason, and Melanocrommyum). Within the subgenus Anguinum, two strongly supported sublineages in East Asian and Eurasian-American were found. Allium tricoccum in North America belonged to the Eurasian clade. The distinct taxonomic status of A. ulleungense and its sister taxon were further determined. In subg. Rhizirideum, the Ulleung Island endemic A. dumebuchum shared its most recent common ancestor with the species from Mongolia and the narrow Korean endemic A. minus. Two Ulleung Island endemics were estimated to originate independently during the Pleistocene. In addition, a separate monotypic sectional treatment of the east Asian A. macrostemon (subg. Allium) and sister relationship between A. condensatum and A. chinense was suggested.https://www.frontiersin.org/articles/10.3389/fpls.2023.1124277/fullAllium ulleungenseAllium dumebuchumUlleung Islandplastome evolutioninfrageneric classification |
| spellingShingle | JiYoung Yang Seon-Hee Kim Hee-Young Gil Hyeok-Jae Choi Seung-Chul Kim New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes Frontiers in Plant Science Allium ulleungense Allium dumebuchum Ulleung Island plastome evolution infrageneric classification |
| title | New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes |
| title_full | New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes |
| title_fullStr | New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes |
| title_full_unstemmed | New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes |
| title_short | New insights into the phylogenetic relationships among wild onions (Allium, Amaryllidaceae), with special emphasis on the subgenera Anguinum and Rhizirideum, as revealed by plastomes |
| title_sort | new insights into the phylogenetic relationships among wild onions allium amaryllidaceae with special emphasis on the subgenera anguinum and rhizirideum as revealed by plastomes |
| topic | Allium ulleungense Allium dumebuchum Ulleung Island plastome evolution infrageneric classification |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1124277/full |
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