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题名: Widespread impact of horizontal gene transfer on plant colonization of land
作者: Yue, Jipei1, 2; Hu, Xiangyang1, 3; Sun, Hang1; Yang Yongping(杨永平)1, 3; Huang, Jinling2
刊名: NATURE COMMUNICATIONS
出版日期: 2012-10-01
卷号: 3
DOI: 10.1038/ncomms2148
文章类型: Article
英文摘要: In complex multicellular eukaryotes such as animals and plants, horizontal gene transfer is commonly considered rare with very limited evolutionary significance. Here we show that horizontal gene transfer is a dynamic process occurring frequently in the early evolution of land plants. Our genome analyses of the moss Physcomitrella patens identified 57 families of nuclear genes that were acquired from prokaryotes, fungi or viruses. Many of these gene families were transferred to the ancestors of green or land plants. Available experimental evidence shows that these anciently acquired genes are involved in some essential or plant-specific activities such as xylem formation, plant defence, nitrogen recycling as well as the biosynthesis of starch, polyamines, hormones and glutathione. These findings suggest that horizontal gene transfer had a critical role in the transition of plants from aquatic to terrestrial environments. On the basis of these findings, we propose a model of horizontal gene transfer mechanism in nonvascular and seedless vascular plants.
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: ARABIDOPSIS ; EVOLUTION ; EUKARYOTES ; GENOME ; ORIGIN ; DNA ; PHOTOSYNTHESIS ; MITOCHONDRIA ; ENVIRONMENT ; MYCORRHIZAS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000313514100062
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/20442
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China
2.E Carolina Univ, Dept Biol, Greenville, NC 27858 USA
3.Chinese Acad Sci, Inst Tibet Plateau Res, Kunming 650201, Peoples R China
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