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DOI | 10.1038/s41586-019-0901-4 |
Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes | |
Lax, Gordon1; Eglit, Yana1; Eme, Laura2,3; Bertrand, Erin M.1; Roger, Andrew J.2; Simpson, Alastair G. B.1 | |
2019-02-06 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2018 |
卷号 | 564期号:7736页码:410-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; Sweden |
英文摘要 | Almost all eukaryote life forms have now been placed within one of five to eight supra-kingdom-level groups using molecular phylogenetics(1-4). The 'phylum' Hemimastigophora is probably the most distinctive morphologically defined lineage that still awaits such a phylogenetic assignment. First observed in the nineteenth century, hemimastigotes are free-living predatory protists with two rows of flagella and a unique cell architecture(5-7); to our knowledge, no molecular sequence data or cultures are currently available for this group. Here we report phylogenomic analyses based on high-coverage, cultivation-independent transcriptomics that place Hemimastigophora outside of all established eukaryote supergroups. They instead comprise an independent supra-kingdom-level lineage that most likely forms a sister clade to the 'Diaphoretickes' half of eukaryote diversity (that is, the 'stramenopiles, alveolates and Rhizaria' supergroup (Sar), Archaeplastida and Cryptista, as well as other major groups). The previous ranking of Hemimastigophora as a phylum understates the evolutionary distinctiveness of this group, which has considerable importance for investigations into the deep-level evolutionary history of eukaryotic life-ranging from understanding the origins of fundamental cell systems to placing the root of the tree. We have also established the first culture of a hemimastigote (Hemimastix kukwesjijk sp. nov.), which will facilitate future genomic and cellbiological investigations into eukaryote evolution and the last eukaryotic common ancestor. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000453834900060 |
WOS关键词 | SINGLE-CELL TRANSCRIPTOMICS ; MULTIPLE SEQUENCE ALIGNMENT ; RNA-SEQ ; TREE ; EVOLUTION ; PHYLOGENY ; MITOCHONDRIAL ; OPISTHOKONTS ; PROTISTA ; GENOMICS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203030 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Dalhousie Univ, Ctr Comparat Genom & Evolutionary Bioinformat, Dept Biol, Halifax, NS, Canada; 2.Dalhousie Univ, Dept Biochem & Mol Biol, Ctr Comparat Genom & Evolutionary Bioinformat, Halifax, NS, Canada; 3.Uppsala Univ, Dept Cell & Mol Biol, Sci Life Lab, Uppsala, Sweden |
推荐引用方式 GB/T 7714 | Lax, Gordon,Eglit, Yana,Eme, Laura,et al. Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes[J]. NATURE,2019,564(7736):410-+. |
APA | Lax, Gordon,Eglit, Yana,Eme, Laura,Bertrand, Erin M.,Roger, Andrew J.,&Simpson, Alastair G. B..(2019).Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes.NATURE,564(7736),410-+. |
MLA | Lax, Gordon,et al."Hemimastigophora is a novel supra-kingdom-level lineage of eukaryotes".NATURE 564.7736(2019):410-+. |
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