Population sequencing enhances understanding of tea plant evolution

被引：194

作者：

Wang, Xinchao ^{[1
]}

Feng, Hu ^{[2
]}

Chang, Yuxiao ^{[2
]}

Ma, Chunlei ^{[1
]}

Wang, Liyuan ^{[1
]}

Hao, Xinyuan ^{[1
]}

Li, A'lun ^{[2
]}

Cheng, Hao ^{[1
]}

Wang, Lu ^{[1
]}

Cui, Peng ^{[2
]}

Jin, Jiqiang ^{[1
]}

Wang, Xiaobo ^{[2
]}

Wei, Kang ^{[1
]}

Ai, Cheng ^{[2
]}

Zhao, Sheng ^{[2
]}

Wu, Zhichao ^{[2
]}

Li, Youyong ^{[3
]}

Liu, Benying ^{[3
]}

Wang, Guo-Dong ^{[4
,5
]}

Chen, Liang ^{[1
]}

Ruan, Jue ^{[2
]}

Yan, Yajun ^{[1
]}

机构：

[1] Chinese Acad Agr Sci, Natl Ctr Tea Plant Improvement, Minist Agr & Rural Affairs, Tea Res Inst,Key Lab Tea Biol & Resource Utilizat, Hangzhou 310008, Peoples R China

[2] Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Minist Agr & Rural Affairs, Lingnan Guangdong Lab Modern Agr,Genome Anal Lab, Shenzhen 518120, Peoples R China

[3] Yunnan Acad Agr Sci, Tea Res Inst, Menghai 650231, Peoples R China

[4] Chinese Acad Sci, Kunming Inst Zool, State Key Lab Genet Resources & Evolut, Kunming 650223, Yunnan, Peoples R China

[5] Chinese Acad Sci, Ctr Excellence Anim Evolut & Genet, Kunming 650223, Yunnan, Peoples R China

来源：

NATURE COMMUNICATIONS | 2020年 / 11卷 / 01期

关键词：

PSEUDOMONAS-SYRINGAE; PROVIDE INSIGHTS; REFERENCE GENOME; RESISTANCE; TREE; DOMESTICATION; DISRUPTION; SELECTION;

D O I：

10.1038/s41467-020-18228-8

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Tea is an economically important plant characterized by a large genome, high heterozygosity, and high species diversity. In this study, we assemble a 3.26-Gb high-quality chromosome-scale genome for the 'Longjing 43' cultivar of Camellia sinensis var. sinensis. Genomic resequencing of 139 tea accessions from around the world is used to investigate the evolution and phylogenetic relationships of tea accessions. We find that hybridization has increased the heterozygosity and wide-ranging gene flow among tea populations with the spread of tea cultivation. Population genetic and transcriptomic analyses reveal that during domestication, selection for disease resistance and flavor in C. sinensis var. sinensis populations has been stronger than that in C. sinensis var. assamica populations. This study provides resources for marker-assisted breeding of tea and sets the foundation for further research on tea genetics and evolution.

引用

页数：10

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