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
Source Publication	ECOLOGY AND EVOLUTION
Abstract	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.
Keyword	chloroplast Comastoma Gentianaceae phylogeny plastome Qinghai-Tibetan Plateau
Document Type	期刊论文
Identifier	http://210.75.249.4/handle/363003/60686
Collection	中国科学院西北高原生物研究所
Recommended Citation 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).

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