An archaeal origin of eukaryotes supports only two primary domains of life

Review

关键词: ARCHAEBACTERIAL ORIGIN;    EVOLUTIONARY TREES;    EUBACTERIAL GENES;    RNA-POLYMERASES;    CELL-DIVISION;    RIBOSOMAL-RNA;    GENOME;    SEQUENCE;    PHYLOGENY;    CRENARCHAEOTA;   

DOI  :  10.1038/nature12779

来源: SCIE

【 摘 要 】

The discovery of the Archaea and the proposal of the three-domains 'universal' tree, based on ribosomal RNA and core genes mainly involved in protein translation, catalysed new ideas for cellular evolution and eukaryotic origins. However, accumulating evidence suggests that the three-domains tree may be incorrect: evolutionary trees made using newer methods place eukaryotic core genes within the Archaea, supporting hypotheses in which an archaeon participated in eukaryotic origins by founding the host lineage for the mitochondrial endosymbiont. These results provide support for only two primary domains of life-Archaea and Bacteria-because eukaryotes arose through partnership between them.

【 授权许可】

Free