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| Plastome phylogenomics, systematics, and divergence time estimation of the Beilschmiedia group (Lauraceae) | |
| Li, Haiwen2; Liu, Bing; Davis, Charles C.; Yang, Yong | |
| 2020 | |
| Source Publication | MOLECULAR PHYLOGENETICS AND EVOLUTION
 |
| ISSN | 1055-7903 |
| Volume | 151 |
| Abstract | Intergeneric relationships of the Beilschmiedia group (Lauraceae) remain unresolved, hindering our understanding of their classification and evolutionary diversification. To remedy this, we sequenced and assembled complete plastid genomes (plastomes) from 25 species representing five genera spanning most major clades of Beilschmiedia and close relatives. Our inferred phylogeny is robust and includes two major clades. The first includes a monophyletic Endiandra nested within a paraphyletic Australasian Beilschmiedia group. The second includes (i) a subclade of African Beilschmiedia plus Malagasy Potameia, (ii) a subclade of Asian species including Syndiclis and Sinopora, (iii) the lone Neotropical species B. immersinervis, (iv) a subclade of core Asian Beilschmiedia, sister to the Neotropical species B. brenesii, and v) two Asian species including B. turbinata and B. glauca. The rampant non-monophyly of Beilschmiedia we identify necessitates a major taxonomic realignment of the genus, including but not limited to the mergers of Brassiodendron and Sinopora into the genera Endiandra and Syndiclis, respectively. Along these lines, the high degree of continental, clade-wide endemism we identify suggests that geographical distribution may be a good proxy for delineating taxa within this group. Our molecular divergence time estimates indicate that stem Beilschmiedia group members date to the Early Eocene (similar to 50 Ma); their crown age dates to the Eocene-Oligocene boundary (similar to 34 Ma). These findings contradict older estimates of the group and support mounting evidence that the origin and diversification of many pantropical angiosperm clades are not easily attributed to strict western Gondwanan vicariance. Finally, our study highlights the phylogenetic utility of plastomes in Lauraceace, and lays a solid foundation for future phylogenomic and biogeographic investigations within the family. |
| Keyword | Beilschmiedia group Lauraceae Molecular clock Plastome Phylogenomics Systematics |
| Subject Area | Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity |
| DOI | 10.1016/j.ympev.2020.106901 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | CHLOROPLAST GENOME SEQUENCE ; SP-NOV ; PHYLOGENETIC-RELATIONSHIPS ; EOCENE ; GENUS ; CLASSIFICATION ; BIOGEOGRAPHY ; ORGANIZATION ; CINNAMOMUM ; DISPERSAL |
| WOS Research Area | Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity |
| WOS ID | WOS:000557888000001 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Subtype | Article |
| Publication Place | SAN DIEGO |
| EISSN | 1095-9513 |
| Funding Organization | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31970205, 31470301, 31770211] ; China Scholarship CouncilChina Scholarship Council |
| Corresponding Author Email | cdavis@oeb.harvard.edu ; 710309338@qq.com |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/21634 |
| Collection | 系统与进化植物学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Davis, Charles C.] Harvard Univ Herbaria, Dept Organism & Evolutionary Biol, 22 Divin Ave, Cambridge, MA 02138 USA 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Haiwen,Liu, Bing,Davis, Charles C.,et al. Plastome phylogenomics, systematics, and divergence time estimation of the Beilschmiedia group (Lauraceae)[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2020,151. |
| APA | Li, Haiwen,Liu, Bing,Davis, Charles C.,&Yang, Yong.(2020).Plastome phylogenomics, systematics, and divergence time estimation of the Beilschmiedia group (Lauraceae).MOLECULAR PHYLOGENETICS AND EVOLUTION,151. |
| MLA | Li, Haiwen,et al."Plastome phylogenomics, systematics, and divergence time estimation of the Beilschmiedia group (Lauraceae)".MOLECULAR PHYLOGENETICS AND EVOLUTION 151(2020). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S105579032030（1135KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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