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The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts
Wan, Tao1,2; Liu, Zhiming2; Leitch, Ilia J.; Xin, Haiping1; Maggs-Kolling, Gillian; Gong, Yanbing5; Li, Zhen6,7; Marais, Eugene4; Liao, Yiying2; Dai, Can8; Liu, Fan1,9; Wu, Qijia10; Song, Chi11; Zhou, Yadong1; Huang, Weichang12; Jiang, Kai12; Wang, Qi1,12; Yang, Yong13; Zhong, Zhixiang1; Yang, Ming2; Yan, Xue9; Hu, Guangwan1; Hou, Chen14; Su, Yingjuan15; Feng, Shixiu2; Yang, Ji16; Yan, Jijun17; Chu, Jinfang17; Chen, Fan17; Ran, Jinhua18; Wang, Xiaoquan18; Van de Peer, Yves6,7,19,20; Leitch, Andrew R.; Wang, Qingfeng1
AbstractThe gymnosperm Welwitschia mirabilis belongs to the ancient, enigmatic gnetophyte lineage. It is a unique desert plant with extreme longevity and two ever-elongating leaves. We present a chromosome-level assembly of its genome (6.8Gb/1C) together with methylome and transcriptome data to explore its astonishing biology. We also present a refined, high-quality assembly of Gnetum montanum to enhance our understanding of gnetophyte genome evolution. The Welwitschia genome has been shaped by a lineage-specific ancient, whole genome duplication (similar to 86 million years ago) and more recently (1-2 million years) by bursts of retrotransposon activity. High levels of cytosine methylation (particularly at CHH motifs) are associated with retrotransposons, whilst long-term deamination has resulted in an exceptionally GC-poor genome. Changes in copy number and/or expression of gene families and transcription factors (e.g. R2R3MYB, SAUR) controlling cell growth, differentiation and metabolism underpin the plant's longevity and tolerance to temperature, nutrient and water stress.
Subject AreaMultidisciplinary Sciences
Indexed BySCI
WOS Research AreaScience Citation Index Expanded (SCI-EXPANDED)
WOS IDWOS:000675329200003
Publication PlaceBERLIN
Funding OrganizationScientific Research Program of Sino-Africa Joint Research Center [SAJL201607, SAJL201614] ; Major Technical Research Project of the Innovation of Science and Technology Commission of Shenzhen [JSGG20140515164852417] ; Scientific Project of Shenzhen Urban Administration [201519] ; National Science Foundation of China [31870206, 31961143026] ; European Research Council (ERC) under the European Union [833522] ; Ghent University [BOF.MET.2021.0005.01]
Corresponding Author Emailxiaoq_wang@ibcas.ac.cn ; yves.vandepeer@psb.ugent.be ; a.r.leitch@qmul.ac.uk ; qfwang@wbgcas.cn
OAgold, Green Published
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Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Wuhan Bot Garden, Core Bot Gardens, Wuhan, Peoples R China
2.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan, Peoples R China
3.Shenzhen & Chinese Acad Sci, FairyLake Bot Garden, Key Lab Southern Subtrop Plant Diver, Shenzhen, Peoples R China
4.Leitch, Ilia J.] Royal Bot Gardens, Surrey, England
5.Gobabeb Res & Training Ctr, Walvis Bay, Namibia
6.Wuhan Univ, Coll Life Sci, State Key Lab Hybrid Rice, Wuhan, Peoples R China
7.Univ Ghent, Dept Plant Biotechnol & Bioinformat, Ghent, Belgium
8.VIB, Ctr Plant Syst Biol, Ghent, Belgium
9.Hubei Univ, Sch Resources & Environm Sci, Wuhan, Peoples R China
10.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan, Peoples R China
11.Seqhlth Technol, Wuhan, Peoples R China
12.China Acad Chinese Med Sci, Inst Chinese Mat Med, Beijing, Peoples R China
13.Shanghai Chenshan Bot Garden, Shanghai Key Lab Plant Funct Genom & Resources, Shanghai, Peoples R China
14.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing, Peoples R China
15.Guangdong Acad Forestry, Guangdong Prov Key Lab Silviculture Protect & Uti, Guangzhou, Guangdong, Peoples R China
16.Sun Yat Sen Univ, Sch Life Sci, Guangzhou, Peoples R China
17.Fudan Univ, Educ Key Lab Biodivers Sci & Ecol Engn, Shanghai, Peoples R China
18.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing, Peoples R China
19.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China
20.Univ Pretoria, Dept Biochem Genet & Microbiol, Ctr Microbial Ecol & Genom, Hatfield, South Africa
21.Nanjing Agr Univ, Acad Adv Interdisciplinary Studies, Coll Hort, Nanjing, Peoples R China
22.Leitch, Andrew R.] Queen Mary Univ London, Sch Biol & Chem Sci, London, England
Recommended Citation
GB/T 7714
Wan, Tao,Liu, Zhiming,Leitch, Ilia J.,et al. The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts[J]. NATURE COMMUNICATIONS,2021,12(1).
APA Wan, Tao.,Liu, Zhiming.,Leitch, Ilia J..,Xin, Haiping.,Maggs-Kolling, Gillian.,...&Wang, Qingfeng.(2021).The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts.NATURE COMMUNICATIONS,12(1).
MLA Wan, Tao,et al."The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts".NATURE COMMUNICATIONS 12.1(2021).
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