Coregulation of tandem duplicate genes slows evolution of subfunctionalization in mammals.
Coregulation of tandem duplicate genes slows evolution of subfunctionalization in mammals.
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DOI:
10.1126/science.aad8411
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发表时间:
2016-05-20
期刊:
影响因子:
--
通讯作者:
Pritchard JK
中科院分区:
文献类型:
--
作者:
Lan X;Pritchard JK
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.
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影响因子:
48
作者:
van de Geijn B;McVicker G;Gilad Y;Pritchard JK
通讯作者:
Pritchard JK
影响因子:
64.8
作者:
通讯作者:
--
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
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