Variations in genetic diversity in cultivated Pistacia chinensis

doi:10.3389/fpls.2022.1030647

KIB OpenIR

	Variations in genetic diversity in cultivated Pistacia chinensis
	Han, Biao; Zhang, Ming-Jia; Xian, Yang; Xu, Hui; Cui, Cheng-Cheng; Liu, Dan; Wang, Lei; Li, De-Zhu; Li, Wen-Qing; Xie, Xiao-Man
	2022
发表期刊	FRONTIERS IN PLANT SCIENCE
卷号	13 页码:1030647
摘要	Identification of the evolution history and genetic diversity of a species is important in the utilization of novel genetic variation in this species, as well as for its conservation. Pistacia chinensis is an important biodiesel tree crop in China, due to the high oil content of its fruit. The aim of this study was to uncover the genetic structure of P. chinensis and to investigate the influence of intraspecific gene flow on the process of domestication and the diversification of varieties. We investigated the genetic structure of P. chinensis, as well as evolution and introgression in the subpopulations, through analysis of the plastid and nuclear genomes of 39 P. chinensis individuals from across China. High levels of variation were detected in the P. chinensis plastome, and 460 intraspecific polymorphic sites, 104 indels and three small inversions were identified. Phylogenetic analysis and population structure using the plastome dataset supported five clades of P. chinensis. Population structure analysis based on the nuclear SNPs showed two groups, clearly clustered together, and more than a third of the total individuals were classified as hybrids. Discordance between the plastid and nuclear genomes suggested that hybridization events may have occurred between highly divergent samples in the P. chinensis subclades. Most of the species in the P. chinensis subclade diverged between the late Miocene and the mid-Pliocene. The processes of domestication and cultivation have decreased the genetic diversity of P. chinensis. The extensive variability and structuring of the P. chinensis plastid together with the nuclear genomic variation detected in this study suggests that much unexploited genetic diversity is available for improvement in this recently domesticated species.
关键词	discordance genetic diversity nuclear SNPs Pistacia chinensis plastome MOLECULAR EVOLUTION RATES POPULATIONS SELECTION ALIGNMENT HISTORY
DOI	10.3389/fpls.2022.1030647
收录类别	SCI
WOS记录号	WOS:000889958200001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75635
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Han, Biao,Zhang, Ming-Jia,Xian, Yang,et al. Variations in genetic diversity in cultivated Pistacia chinensis[J]. FRONTIERS IN PLANT SCIENCE,2022,13:1030647.
APA	Han, Biao.,Zhang, Ming-Jia.,Xian, Yang.,Xu, Hui.,Cui, Cheng-Cheng.,...&Xie, Xiao-Man.(2022).Variations in genetic diversity in cultivated Pistacia chinensis.FRONTIERS IN PLANT SCIENCE,13,1030647.
MLA	Han, Biao,et al."Variations in genetic diversity in cultivated Pistacia chinensis".FRONTIERS IN PLANT SCIENCE 13(2022):1030647.

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