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The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts.
Wan, Tao; Liu, Zhiming; Leitch, Ilia J; Xin, Haiping; Maggs-Kölling, Gillian; Gong, Yanbing; Li, Zhen; Marais, Eugene; Liao, Yiying; Dai, Can; Liu, Fan; Wu, Qijia; Song, Chi; Zhou, Yadong; Huang, Weichang; Jiang, Kai; Wang, Qi; Yang, Yong; Zhong, Zhixiang; Yang, Ming; Yan, Xue; Hu, Guangwan; Hou, Chen; Su, Yingjuan; Feng, Shixiu; Yang, Ji; Yan, Jijun; Chu, Jinfang; Chen, Fan; Ran, Jinhua; Wang, Xiaoquan; Van de Peer, Yves; Leitch, Andrew R; Wang, Qingfeng.
Afiliación
  • Wan T; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Liu Z; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Leitch IJ; Key Laboratory of Southern Subtropical Plant Diversity, FairyLake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, China.
  • Xin H; Key Laboratory of Southern Subtropical Plant Diversity, FairyLake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, China.
  • Maggs-Kölling G; Royal Botanic Gardens, Kew, Surrey, UK.
  • Gong Y; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Li Z; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Marais E; Gobabeb Research and Training Centre, Walvis Bay, Namibia.
  • Liao Y; State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China.
  • Dai C; Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium.
  • Liu F; Center for Plant Systems Biology, VIB, Ghent, Belgium.
  • Wu Q; Gobabeb Research and Training Centre, Walvis Bay, Namibia.
  • Song C; Key Laboratory of Southern Subtropical Plant Diversity, FairyLake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, China.
  • Zhou Y; School of Resources and Environmental Science, Hubei University, Wuhan, China.
  • Huang W; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Jiang K; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Wang Q; Seqhealth Technology, Wuhan, China.
  • Yang Y; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
  • Zhong Z; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Yang M; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Yan X; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, China.
  • Hu G; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, China.
  • Hou C; Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, China.
  • Su Y; College of Biology and Environment, Nanjing Forestry University, Nanjing, China.
  • Feng S; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Yang J; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Yan J; Key Laboratory of Southern Subtropical Plant Diversity, FairyLake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, China.
  • Chu J; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Chen F; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Ran J; Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
  • Wang X; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, China.
  • Van de Peer Y; Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, Guangdong, China.
  • Leitch AR; School of Life Sciences, Sun Yat-Sen University, Guangzhou, China.
  • Wang Q; Key Laboratory of Southern Subtropical Plant Diversity, FairyLake Botanical Garden, Shenzhen & Chinese Academy of Sciences, Shenzhen, China.
Nat Commun ; 12(1): 4247, 2021 07 12.
Article en En | MEDLINE | ID: mdl-34253727
The 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 (6.8 Gb/1 C) 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 (~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.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Genoma de Planta / Cycadopsida / Clima Desértico País/Región como asunto: Africa Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: China
Texto completo
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Genoma de Planta / Cycadopsida / Clima Desértico País/Región como asunto: Africa Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: China