The nature of the last universal common ancestor

被引:96
作者
Penny, D
Poole, A
机构
[1] Massey Univ, Inst Mol BioSci, Palmerston North, New Zealand
[2] Stockholm Univ, Dept Mol Biol, S-10691 Stockholm, Sweden
关键词
D O I
10.1016/S0959-437X(99)00020-9
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Cytologically, prokaryotes appear simpler and thus evolutionarily 'older' than eukaryotes. In terms of RNA processing, however, prokaryotes are sophisticated and eukaryotes, which retain many features of an RNA-world, appear primitive. The last universal common ancestor may have been mesophilic and could have had many features of the eukaryote genome, but its cytology is unknown.
引用
收藏
页码:672 / 677
页数:6
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