The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis

doi:10.1016/j.molp.2019.10.017

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	The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis
	Liu, Jin 11,12; Shi, Cong 10,11; Shi, Cheng-Cheng 1; Li, Wei 9; Zhang, Qun-Jie 9; Zhang, Yun 8; Li, Kui 6,7; Lu, Hui-Fang 5; Shi, Chao 11; Zhu, Si-Tao 1
刊名	MOLECULAR PLANT
	2020-02-03
卷号	13 期号:2 页码:336-350
关键词	rubber tree rubber biosynthesis chromosome evolution whole-genome duplication domestication
ISSN号	1674-2052
DOI	10.1016/j.molp.2019.10.017
通讯作者	Liu, Xin(liuxin@genomics.cn) ; Gao, Li-Zhi(lgaogenomics@163.com)
英文摘要	The rubber tree, Hevea brasiliensis, produces natural rubber that serves as an essential industrial raw material. Here, we present a high-quality reference genome for a rubber tree cultivar GT1 using single-molecule real-time sequencing (SMRT) and Hi-C technologies to anchor the similar to 1.47-Gb genome assembly into 18 pseudochromosomes. The chromosome-based genome analysis enabled us to establish a model of spurge chromosome evolution, since the common paleopolyploid event occurred before the split of Hevea and Manihot. We show recent and rapid bursts of the three Hevea-specific LTR-retrotransposon families during the last 10 million years, leading to the massive expansion by similar to 65.88% (similar to 970 Mbp) of the whole rubber tree genome since the divergence from Manihot. We identify large-scale expansion of genes associated with whole rubber biosynthesis processes, such as basal metabolic processes, ethylene biosynthesis, and the activation of polysaccharide and glycoprotein lectin, which are important properties for latex production. A map of genomic variation between the cultivated and wild rubber trees was obtained, which contains similar to 15.7 million high-quality single-nucleotide polymorphisms. We identified hundreds of candidate domestication genes with drastically lowered genomic diversity in the cultivated but not wild rubber trees despite a relatively short domestication history of rubber tree, some of which are involved in rubber biosynthesis. This genome assembly represents key resources for future rubber tree research and breeding, providing novel targets for improving plant biotic and abiotic tolerance and rubber production.
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
WOS记录号	WOS:000510842700012
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/70818]
专题	昆明植物研究所_中国西南野生生物种质资源库
通讯作者	Liu, Xin; Gao, Li-Zhi
作者单位	1.BGI Qingdao, Qingdao 266555, Peoples R China 2.Univ Washington, Howard Hughes Med Inst, Seattle, WA 98195 USA 3.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 5.BGI Shenzhen, Shenzhen 518083, Peoples R China 6.Novogene Bioinformat Inst, Beijing 100083, Peoples R China 7.Nanjing Univ, Sch Life Sci, Nanjing 210023, Peoples R China 8.Southwest China Forestry Univ, Asia Pacific Trop Forestry Germplasm Inst, Kunming 650224, Yunnan, Peoples R China 9.South China Agr Univ, Inst Genom & Bioinformat, Guangzhou 510642, Peoples R China 10.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jin,Shi, Cong,Shi, Cheng-Cheng,et al. The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis[J]. MOLECULAR PLANT,2020,13(2):336-350.
APA	Liu, Jin.,Shi, Cong.,Shi, Cheng-Cheng.,Li, Wei.,Zhang, Qun-Jie.,...&Gao, Li-Zhi.(2020).The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis.MOLECULAR PLANT,13(2),336-350.
MLA	Liu, Jin,et al."The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis".MOLECULAR PLANT 13.2(2020):336-350.