Genome reduction as the dominant mode of evolution.
Genome reduction as the dominant mode of evolution.
复制标题
DOI:
10.1002/bies.201300037
复制
发表时间:
2013-09
期刊:
影响因子:
--
通讯作者:
Koonin EV
中科院分区:
文献类型:
--
作者:
Wolf YI;Koonin EV
A common belief is that evolution generally proceeds towards greater complexity at both the organismal and the genomic level, numerous examples of reductive evolution of parasites and symbionts notwithstanding. However, recent evolutionary reconstructions challenge this notion. Two notable examples are the reconstruction of the complex archaeal ancestor and the intron-rich ancestor of eukaryotes. In both cases, evolution in most of the lineages was apparently dominated by extensive loss of genes and introns, respectively. These and many other cases of reductive evolution are consistent with a general model composed of two distinct evolutionary phases: the short, explosive, innovation phase that leads to an abrupt increase in genome complexity, followed by a much longer reductive phase, which encompasses either a neutral ratchet of genetic material loss or adaptive genome streamlining. Quantitatively, the evolution of genomes appears to be dominated by reduction and simplification, punctuated by episodes of complexification.
登录
查看更多内容
影响因子:
15.9
作者:
Al-Khodor S;Price CT;Kalia A;Abu Kwaik Y
通讯作者:
Abu Kwaik Y
影响因子:
3
作者:
Bollback JP
通讯作者:
Bollback JP
影响因子:
5.8
作者:
Ames, Ryan M.;Money, Daniel;Lovell, Simon C.
通讯作者:
Lovell, Simon C.
影响因子:
4.5
作者:
Blanc, Guillaume;Ogata, Hiroyuki;Robert, Catherine;Audic, Stephane;Suhre, Karsten;Vestris, Guy;Claverie, Jean-Michel;Raoult, Didier
通讯作者:
Raoult, Didier
影响因子:
3.4
作者:
Carmel, Liran;Rogozin, Igor B.;Koonin, Eugene V.
通讯作者:
Koonin, Eugene V.