Ancient gene transfer from algae to animals:Mechanisms and evolutionary significance
文献类型：期刊论文
| 作者 | Ni T1,2; Yue JP3; Sun GL3; Zou Y1,2; Wen JF[*]1; Huang JL[*]3 |
| 刊名 | BMC Evolutionary Biology
 |
| 出版日期 | 2012 |
| 卷号 | 12期号:X页码:e83 |
| 关键词 | gene transfer endosymbiosis plastids animal evolution |
| 通讯作者 | wenjf@mail.kiz.ac.cn ; huangj@ecu.edu |
| 合作状况 | 其它 |
| 英文摘要 | Background: Horizontal gene transfer (HGT) is traditionally considered to be rare in multicellular eukaryotes such as animals. Recently, many genes of miscellaneous algal origins were discovered in choanoflagellates. Considering that choanoflagellates are the existing closest relatives of animals, we speculated that ancient HGT might have occurred in the unicellular ancestor of animals and affected the long-term evolution of animals. Results: Through genome screening, phylogenetic and domain analyses, we identified 14 gene families, including 92 genes, in the tunicate Ciona intestinalis that are likely derived from miscellaneous photosynthetic eukaryotes. Almost all of these gene families are distributed in diverse animals, suggesting that they were mostly acquired by the common ancestor of animals. Their miscellaneous origins also suggest that these genes are not derived from a particular algal endosymbiont. In addition, most genes identified in our analyses are functionally related to molecule transport, cellular regulation and methylation signaling, suggesting that the acquisition of these genes might have facilitated the intercellular communication in the ancestral animal. Conclusions: Our findings provide additional evidence that algal genes in aplastidic eukaryotes are not exclusively derived from historical plastids and thus important for interpreting the evolution of eukaryotic photosynthesis. Most importantly, our data represent the first evidence that more anciently acquired genes might exist in animals and that ancient HGT events have played an important role in animal evolution. |
| 收录类别 | SCI |
| 资助信息 | This work is supported in part by 973 Program (2007CB815705), the Knowledge Innovation Program (KSCX2-EW-J-23), grant (30830018) from the NSFC, and grant (2008GA002) from Yunnan province to JW and a NSF Assembling the Tree of Life (ATOL) grant (DEB 0830024) to JH. |
| 语种 | 英语 |
| 公开日期 | 2012-09-20 |
| 源URL | [http://159.226.149.42:8088/handle/152453/7114]  |
| 专题 | 昆明动物研究所_真核细胞进化基因组 昆明动物研究所_遗传资源与进化国家重点实验室 |
| 作者单位 | 1.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China 2.Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 3.Department of Biology, East Carolina University, Greenville, NC 27858, USA |
| 推荐引用方式 GB/T 7714 | Ni T,Yue JP,Sun GL,et al. Ancient gene transfer from algae to animals:Mechanisms and evolutionary significance[J]. BMC Evolutionary Biology,2012,12(X):e83. |
| APA | Ni T,Yue JP,Sun GL,Zou Y,Wen JF[*],&Huang JL[*].(2012).Ancient gene transfer from algae to animals:Mechanisms and evolutionary significance.BMC Evolutionary Biology,12(X),e83. |
| MLA | Ni T,et al."Ancient gene transfer from algae to animals:Mechanisms and evolutionary significance".BMC Evolutionary Biology 12.X(2012):e83. |
入库方式： OAI收割
来源：昆明动物研究所
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