Phylogenomic insights into the reticulate evolution of Camellia sect. Paracamellia Sealy (Theaceae)

doi:10.1111/jse.12948

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	Phylogenomic insights into the reticulate evolution of Camellia sect. Paracamellia Sealy (Theaceae)
	Qin,Sheng-Yuan; Chen,Kai; Zhang,Wen-Ju; Xiang,Xiao-Guo; Zuo,Zheng-Yu; Guo,Cen; Zhao,Yao; Li,Lin-Feng; Wang,Yu-Guo; Song,Zhi-Ping; Yang,Ji; Yang,Xiao-Qiang; Zhang,Jian; Jin,Wei-Tao; Wen,Qiang; Zhao,Song-Zi; Chen,Jia-Kuan; Li,De-Zhu; Rong,Jun
	2023
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1759-6831
摘要	Polyploids are common in Camellia sect. Paracamellia, which contain many important oil crop species. However, their complex evolutionary history is largely unclear. In this study, 22 transcriptomes and 19 plastomes of related species of Camellia were sequenced and assembled, providing the most completed taxa sampling of Camellia sect. Oleifera and C. sect. Paracamellia. Phylogenetic trees were reconstructed with predicted single-copy nuclear genes and plastomes. Phylogenetic trees with nuclear genes demonstrated that C. sect. Oleifera should be merged into C. sect. Paracamellia. Cytonuclear discordance and network analyses suggested hybridizations among polyploid species and relatives. The divergence of major clades in C. sect. Paracamellia was dated to be during the middle to late Miocene from the ancestral Lingnan region, and a rapid diversification during the Quaternary was found, probably through hybridization and polyploidization. The tetraploid Camellia meiocarpa Hu may have originated from hybridization between closely related diploid species. The hexaploid Camellia oleifera C. Abel probably originated from hybridization between closely related diploid and tetraploid (e.g., C. meiocarpa) species. The octoploid Camellia vietnamensis T. C. Huang ex Hu could have originated from hybridization between hexaploid C. oleifera and the closely related diploid species. Hybridization and polyploidization played an important role in generating the rich variation of important fruit traits, especially increased fruit size in polyploid species.
关键词	Camellia oleifera hybridization phylogenomics plastome polyploidization transcriptome EVERGREEN BROADLEAVED FORESTS HISTORY DYNAMICS OLEIFERA CHINA PHYLOGEOGRAPHY ALIGNMENT TREE
学科领域	Plant Sciences
DOI	10.1111/jse.12948
收录类别	SCI
WOS记录号	WOS:000939632700001
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75259
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Qin,Sheng-Yuan,Chen,Kai,Zhang,Wen-Ju,et al. Phylogenomic insights into the reticulate evolution of Camellia sect. Paracamellia Sealy (Theaceae)[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2023.
APA	Qin,Sheng-Yuan.,Chen,Kai.,Zhang,Wen-Ju.,Xiang,Xiao-Guo.,Zuo,Zheng-Yu.,...&Rong,Jun.(2023).Phylogenomic insights into the reticulate evolution of Camellia sect. Paracamellia Sealy (Theaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION.
MLA	Qin,Sheng-Yuan,et al."Phylogenomic insights into the reticulate evolution of Camellia sect. Paracamellia Sealy (Theaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION (2023).

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