Plastome sequencing reveals phylogenetic relationships among Comastoma and related taxa (Gentianaceae) from the Qinghai-Tibetan Plateau

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	Plastome sequencing reveals phylogenetic relationships among Comastoma and related taxa (Gentianaceae) from the Qinghai-Tibetan Plateau
	Zhang, Yu; Yu, Jingya; Xia, Mingze; Chi, Xiaofeng; Khan, Gulzar; Chen, Shilong; Zhang, Faqi
	2021
发表期刊	ECOLOGY AND EVOLUTION
摘要	Genus Comastoma (subt. Swertiinae, Gentianaceae) contains species, such as Zangyinchen, that are important herbs in Tibetan medicine. The phylogenetic relationship of this within Gentianaceae and the circumscriptions of its species have long been controversial with conflicting morphological and molecular data reported. Here, we used whole chloroplast genome sequences for Comastoma species and related taxa to reconstruct their phylogeny and clarify their taxonomic relationships. The results revealed that the length of all plastome sequenced varied from 149 to 151 kb and have high similarity in structure and gene content. Phylogenomic analysis showed that Comastoma is a monophyletic group, closely related to the genus Lomatogonium. The divergence time estimation showed that Gentianaceae diverged at about 21.81 Ma, while the split of Comastoma occurred at 7.70 Ma. However, the results suggested the crown age of species formation in this genus is after 4.19 Ma. Our results suggest that QTP uplift, the alternation of Quaternary glaciation and interglaciation, and monsoon changes might have acted as drivers of speciation in Comastoma.
关键词	chloroplast Comastoma Gentianaceae phylogeny plastome Qinghai-Tibetan Plateau
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60686
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Yu,Yu, Jingya,Xia, Mingze,et al. Plastome sequencing reveals phylogenetic relationships among Comastoma and related taxa (Gentianaceae) from the Qinghai-Tibetan Plateau[J]. ECOLOGY AND EVOLUTION,2021.
APA	Zhang, Yu.,Yu, Jingya.,Xia, Mingze.,Chi, Xiaofeng.,Khan, Gulzar.,...&Zhang, Faqi.(2021).Plastome sequencing reveals phylogenetic relationships among Comastoma and related taxa (Gentianaceae) from the Qinghai-Tibetan Plateau.ECOLOGY AND EVOLUTION.
MLA	Zhang, Yu,et al."Plastome sequencing reveals phylogenetic relationships among Comastoma and related taxa (Gentianaceae) from the Qinghai-Tibetan Plateau".ECOLOGY AND EVOLUTION (2021).