Plastome characteristics and species identification of Chinese medicinal wintergreens (Gaultheria, Ericaceae)

doi:10.1016/j.pld.2022.06.002

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	Plastome characteristics and species identification of Chinese medicinal wintergreens (Gaultheria, Ericaceae)
	Xu, Yan-Ling; Shen, Hao-Hua; Du, Xin-Yu; Lu, Lu
	2022
发表期刊	PLANT DIVERSITY
卷号	44 期号:6 页码:519-529
摘要	Wintergreen oil is a folk medicine widely used in foods, pesticides, cosmetics and drugs. In China, nine out of 47 species within Gaultheria (Ericaceae) are traditionally used as Chinese medicinal wintergreens; however, phylogenetic approaches currently used to discriminating these species remain unsatisfactory. In this study, we sequenced and characterized plastomes from nine Chinese wintergreen species and identified candidate DNA barcoding regions for Gaultheria. Each Gaultheria plastome contained 110 unique genes (76 protein-coding, 30 tRNA, and four rRNA genes). Duplication of trnfM, rps14, and rpl23 genes were detected, while all plastomes lacked ycf1 and ycf2 genes. Gaultheria plastomes shared substantially contracted SSC regions that contained only the ndhF gene. Moreover, plastomes of Gaultheria leucocarpa var. yunnanensis contained an inversion in the LSC region and an IR expansion to cover the ndhF gene. Multiple rearrangement events apparently occurred between the Gaultheria plastomes and those from several previously reported families in Ericales. Our phylogenetic reconstruction using 42 plastomes revealed well-supported relationships within all nine Gaultheria species. Additionally, seven mutational hotspot regions were identified as potential DNA barcodes for Chinese medicinal wintergreens. Our study is the first to generate complete plastomes and describe the structural variations of the complicated genus Gaultheria. In addition, our findings provide important resources for identification of Chinese medicinal wintergreens. Copyright (c) 2022 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	DNA barcodes Gene duplication Plastome Repeat sequences Structural variation CHLOROPLAST GENOME PHYLOGENETIC ANALYSIS INVERTED REPEAT EVOLUTION SEQUENCE DNA SOFTWARE INSIGHTS REARRANGEMENTS ORGANIZATION
DOI	10.1016/j.pld.2022.06.002
收录类别	SCI
WOS记录号	WOS:000935830000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74721
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Xu, Yan-Ling,Shen, Hao-Hua,Du, Xin-Yu,et al. Plastome characteristics and species identification of Chinese medicinal wintergreens (Gaultheria, Ericaceae)[J]. PLANT DIVERSITY,2022,44(6):519-529.
APA	Xu, Yan-Ling,Shen, Hao-Hua,Du, Xin-Yu,&Lu, Lu.(2022).Plastome characteristics and species identification of Chinese medicinal wintergreens (Gaultheria, Ericaceae).PLANT DIVERSITY,44(6),519-529.
MLA	Xu, Yan-Ling,et al."Plastome characteristics and species identification of Chinese medicinal wintergreens (Gaultheria, Ericaceae)".PLANT DIVERSITY 44.6(2022):519-529.

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