Coregulation of tandem duplicate genes slows evolution of subfunctionalization in mammals.

Coregulation of tandem duplicate genes slows evolution of subfunctionalization in mammals.
复制标题

DOI:
10.1126/science.aad8411
复制
发表时间:
2016-05-20
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Pritchard JK
Pritchard JK
中科院分区:
其他
文献类型:
--
作者:
Lan X;Pritchard JK

文献摘要

参考文献

被引文献

相似文献

基因复制是基因组进化的基本过程。然而,大多数年轻的重复基因会因功能丧失突变而退化,而允许一些重复基因对长期存活的因素仍然存在争议。一类模型来解释重复保留调用子或neofunctionalization,而其他人专注于共享基因剂量。来自46个人类和26个小鼠组织的RNA测序数据表明,表达的亚功能化演变缓慢,并且在胎盘哺乳动物中出现的重复中是罕见的,这可能是因为串联重复由共享的基因组元件共同调控。相反,与剂量共享假说一致,大多数年轻的重复基因被下调以匹配单拷贝基因的表达水平。因此,表达的剂量共享允许哺乳动物复制品的初始存活,随后是较慢的功能适应,从而能够长期保存。
Gene duplication is a fundamental process in genome evolution. However, most young duplicates are degraded by loss-of-function mutations, and the factors that allow some duplicate pairs to survive long-term remain controversial. One class of models to explain duplicate retention invokes sub- or neofunctionalization, whereas others focus on sharing of gene dosage. RNA-sequencing data from 46 human and 26 mouse tissues indicate that subfunctionalization of expression evolves slowly and is rare among duplicates that arose within the placental mammals, possibly because tandem duplicates are coregulated by shared genomic elements. Instead, consistent with the dosage-sharing hypothesis, most young duplicates are down-regulated to match expression levels of single-copy genes. Thus, dosage sharing of expression allows for the initial survival of mammalian duplicates, followed by slower functional adaptation enabling long-term preservation.
DOI: 10.1038/nmeth.3582
发表时间: 2015-11
期刊: Nature methods
影响因子: 48
作者:
van de Geijn B;McVicker G;Gilad Y;Pritchard JK
通讯作者: Pritchard JK
DOI: 10.1038/nature12531
发表时间: 2013-09-26
期刊: Nature
影响因子: 64.8
作者:
通讯作者: --
DOI: 10.1101/gr.155192.113
发表时间: 2014-01
期刊: Genome research
影响因子: 7
作者:
Battle A;Mostafavi S;Zhu X;Potash JB;Weissman MM;McCormick C;Haudenschild CD;Beckman KB;Shi J;Mei R;Urban AE;Montgomery SB;Levinson DF;Koller D
通讯作者: Koller D
DOI: 10.1126/science.1072047
发表时间: 2002-08-09
期刊: SCIENCE
影响因子: 56.9
作者:
Bailey, JA;Gu, ZP;Eichler, EE
通讯作者: Eichler, EE
DOI: 10.1126/science.1262110
发表时间: 2015-05-08
期刊: Science (New York, N.Y.)
影响因子: --
作者:
GTEx Consortium
通讯作者: GTEx Consortium