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Phylogenomics and morphological evolution of the mega-diverse genus Artemisia (Asteraceae: Anthemideae): implications for its circumscription and infrageneric taxonomy
Jiao,Bohan; Chen,Chen; Wei,Meng; Niu,Guohao; Zheng,Jiye; Zhang,Guojin; Shen,Jiahao; Vitales,Daniel; Valles,Joan; Verloove,Filip; Erst,Andrey S.; Soejima,Akiko; Mehregan,Iraj; Kokubugata,Goro; Chung,Gyu-Young; Ge,Xuejun; Gao,Lianming; Yuan,Yuan; Joly,Cyprien; Jabbour,Florian; Wang,Wei; Shultz,Leila M.; Gao,Tiangang
2023
Source PublicationANNALS OF BOTANY
ISSN1095-8290
Volume131Issue:5Pages:867-883
AbstractBackground and Aims Artemisia is a mega-diverse genus consisting of similar to 400 species. Despite its medicinal importance and ecological significance, a well-resolved phylogeny for global Artemisia, a natural generic delimitation and infrageneric taxonomy remain missing, owing to the obstructions from limited taxon sampling and insufficient information on DNA markers. Its morphological characters, such as capitulum, life form and leaf, show marked variations and are widely used in its infrageneric taxonomy. However, their evolution within Artemisia is poorly understood. Here, we aimed to reconstruct a well-resolved phylogeny for global Artemisia via a phylogenomic approach, to infer the evolutionary patterns of its key morphological characters and to update its circumscription and infrageneric taxonomy. Methods We sampled 228 species (258 samples) of Artemisia and its allies from both fresh and herbarium collections, covering all the subgenera and its main geographical areas, and conducted a phylogenomic analysis based on nuclear single nucleotide polymorphisms (SNPs) obtained from genome skimming data. Based on the phylogenetic framework, we inferred the possible evolutionary patterns of six key morphological characters widely used in its previous taxonomy. Key Results The genus Kaschgaria was revealed to be nested in Artemisia with strong support. A well-resolved phylogeny of Artemisia consisting of eight highly supported clades was recovered, two of which were identified for the first time. Most of the previously recognized subgenera were not supported as monophyletic. Evolutionary inferences based on the six morphological characters showed that different states of these characters originated independently more than once. Conclusions The circumscription of Artemisia is enlarged to include the genus Kaschgaria. The morphological characters traditionally used for the infrageneric taxonomy of Artemisia do not match the new phylogenetic tree. They experienced a more complex evolutionary history than previously thought. We propose a revised infrageneric taxonomy of the newly circumscribed Artemisia, with eight recognized subgenera to accommodate the new results.
KeywordArtemisia phylogenomics taxonomy morphological evolution generic delimitation infrageneric taxonomy genome skimming NUCLEAR RIBOSOMAL DNA MOLECULAR PHYLOGENY SUBGENUS TRIDENTATAE ALLIES ANTHEMIDEAE ENDEMIC ARTEMISIA TREE L. CLASSIFICATION GENERA ORIGIN
Subject AreaPlant Sciences
DOI10.1093/aob/mcad051
WOS IDWOS:001001455800012
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/74891
Collection中国科学院昆明植物研究所
Recommended Citation
GB/T 7714
Jiao,Bohan,Chen,Chen,Wei,Meng,et al. Phylogenomics and morphological evolution of the mega-diverse genus Artemisia (Asteraceae: Anthemideae): implications for its circumscription and infrageneric taxonomy[J]. ANNALS OF BOTANY,2023,131(5):867-883.
APA Jiao,Bohan.,Chen,Chen.,Wei,Meng.,Niu,Guohao.,Zheng,Jiye.,...&Gao,Tiangang.(2023).Phylogenomics and morphological evolution of the mega-diverse genus Artemisia (Asteraceae: Anthemideae): implications for its circumscription and infrageneric taxonomy.ANNALS OF BOTANY,131(5),867-883.
MLA Jiao,Bohan,et al."Phylogenomics and morphological evolution of the mega-diverse genus Artemisia (Asteraceae: Anthemideae): implications for its circumscription and infrageneric taxonomy".ANNALS OF BOTANY 131.5(2023):867-883.
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