Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria

doi:10.3389/fpls.2023.1127443

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	Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria
	Xue,Bine; Song,Zhuqiu; Cai,Jie; Ma,Zhonghui; Huang,Jiuxiang; Li,Yuling; Yao,Gang
	2023
发表期刊	FRONTIERS IN PLANT SCIENCE
卷号	14 页码:1127443
摘要	Alsineae are one of the most taxonomically difficult tribes in Caryophyllaceae and consist of over 500 species distributed in the northern temperate zone. Recent phylogenetic results have improved our understanding on the evolutionary relationships among Alsineae members. Nevertheless, there are still some unresolved taxonomic and phylogenetic problems at the generic level, and the evolutionary history of major clades within the tribe was unexplored to date. In this study, we carried out phylogenetic analyses and divergence time estimation of Alsineae using the nuclear ribosomal internal transcribed spacer (nrITS) and four plastid regions (matK, rbcL, rps16, trnL-F). The present analyses yielded a robustly supported phylogenetic hypothesis of the tribe. Our results showed that the monophyletic Alsineae are strongly supported to be the sister of Arenarieae, and the inter-generic relationships within Alsineae were mostly resolved with strong support. Both molecular phylogenetic and morphological evidence supported the Asian species Stellaria bistylata and the two North American species Pseudostellaria jamesiana and Stellaria americana all should be recognized as new monotypic genera respectively, and three new genera Reniostellaria, Torreyostellaria, and Hesperostellaria were thereby proposed here. Additionally, molecular and morphological evidence also supported the proposal of the new combination Schizotechium delavayi. Nineteen genera were accepted within Alsineae and a key to these genera was provided. Molecular dating analysis suggested that Alsineae splitted from its sister tribe at ca. 50.2 million-years ago (Ma) during the early Eocene and began to diverge at ca. 37.9 Ma during the late Eocene, and divergent events within Alsineae occurred mainly since the late Oligocene. Results from the present study provide insights into the historical assembly of herbaceous flora in northern temperate regions.
关键词	Alsineae Caryophyllaceae diversification new combination new genus phylogeny RAPID RADIATION CHARACTER EVOLUTION MOLECULAR PHYLOGENY CARBON-CYCLE GENUS BIOGEOGRAPHY DIVERSITY DELIMITATION DUPLICATIONS DISPERSAL
学科领域	Plant Sciences
DOI	10.3389/fpls.2023.1127443
WOS记录号	WOS:001022933700001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74976
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Xue,Bine,Song,Zhuqiu,Cai,Jie,et al. Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria[J]. FRONTIERS IN PLANT SCIENCE,2023,14:1127443.
APA	Xue,Bine.,Song,Zhuqiu.,Cai,Jie.,Ma,Zhonghui.,Huang,Jiuxiang.,...&Yao,Gang.(2023).Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria.FRONTIERS IN PLANT SCIENCE,14,1127443.
MLA	Xue,Bine,et al."Phylogenetic analysis and temporal diversification of the tribe Alsineae (Caryophyllaceae) with the description of three new genera, Hesperostellaria, Reniostellaria and Torreyostellaria".FRONTIERS IN PLANT SCIENCE 14(2023):1127443.

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