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A genome for gnetophytes and early evolution of seed plants
文献类型：期刊论文
| 作者 | Wan, Tao2,3; Liu, Zhi-Ming4; Li, Ling-Fei2; Leitch, Andrew R.5; Leitch, Ilia J.6; Lohaus, Rolf7,8; Liu, Zhong-Jian9,10; Xin, Hai-Ping3,11; Gong, Yan-Bing12; Liu, Yang2 |
| 刊名 | NATURE PLANTS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 4期号:2页码:82-89 |
| ISSN号 | 2055-026X |
| DOI | 10.1038/s41477-017-0097-2 |
| 英文摘要 | Gnetophytes are an enigmatic gymnosperm lineage comprising three genera, Gnetum, Welwitschia and Ephedra, which are morphologically distinct from all other seed plants. Their distinctiveness has triggered much debate as to their origin, evolution and phylogenetic placement among seed plants. To increase our understanding of the evolution of gnetophytes, and their relation to other seed plants, we report here a high-quality draft genome sequence for Gnetum montanum, the first for any gnetophyte. By using a novel genome assembly strategy to deal with high levels of heterozygosity, we assembled >4 Gb of sequence encoding 27,491 protein-coding genes. Comparative analysis of the G. montanum genome with other gymnosperm genomes unveiled some remarkable and distinctive genomic features, such as a diverse assemblage of retrotransposons with evidence for elevated frequencies of elimination rather than accumulation, considerable differences in intron architecture, including both length distribution and proportions of (retro) transposon elements, and distinctive patterns of proliferation of functional protein domains. Furthermore, a few gene families showed Gnetum-specific copy number expansions (for example, cellulose synthase) or contractions (for example, Late Embryogenesis Abundant protein), which could be connected with Gnetum's distinctive morphological innovations associated with their adaptation to warm, mesic environments. Overall, the G. montanum genome enables a better resolution of ancestral genomic features within seed plants, and the identification of genomic characters that distinguish Gnetum from other gymnosperms. |
| 资助项目 | Novogene Bioinformatics Institute, Beijing, China[NHT140016] ; Novogene Bioinformatics Institute, Beijing, China[NVT140016004] ; Scientific Project of Shenzhen Urban Administration[201519] ; Innovation of Science and Technology Commission of Shenzhen[JSGG20140515164852417] ; Sino-Africa Joint Research Center[SAJL201607] ; Ghent University[01MR0310W] ; European Union Seventh Framework Programme under European Research Council[322739-DOUBLEUP] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000425119600012 |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/3796]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Wang, Qing-Feng; Van de Peer, Yves; Zhang, Jin-Bo; Wang, Xiao-Ming |
| 作者单位 | 1.Univ Pretoria, Genom Res Inst, Pretoria, South Africa 2.Shenzhen & Chinese Acad Sci, Fairy Lake Bot Garden, Key Lab Southern Subtrop Plant Divers, Shenzhen, Peoples R China 3.Chinese Acad Sci, Sinoafrica Joint Res Ctr, Wuhan, Hubei, Peoples R China 4.Novogene Bioinformat Inst, Beijing, Peoples R China 5.Queen Mary Univ London, Sch Biol & Chem Sci, London, England 6.Royal Bot Gardens, Jodrell Lab, Richmond, England 7.Univ Ghent, Dept Plant Biotechnol & Bioinformat, Ghent, Belgium 8.Ctr Plant Syst Biol VIB, Ghent, Belgium 9.Natl Orchid Conservat Ctr China, Shenzhen Key Lab Orchid Conservat & Utilizat, Shenzhen, Peoples R China 10.Orchid Conservat & Res Ctr, Shenzhen, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Tao,Liu, Zhi-Ming,Li, Ling-Fei,et al. A genome for gnetophytes and early evolution of seed plants[J]. NATURE PLANTS,2018,4(2):82-89. |
| APA | Wan, Tao.,Liu, Zhi-Ming.,Li, Ling-Fei.,Leitch, Andrew R..,Leitch, Ilia J..,...&Wang, Xiao-Ming.(2018).A genome for gnetophytes and early evolution of seed plants.NATURE PLANTS,4(2),82-89. |
| MLA | Wan, Tao,et al."A genome for gnetophytes and early evolution of seed plants".NATURE PLANTS 4.2(2018):82-89. |
入库方式： OAI收割
来源：武汉植物园
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