Reprogramming the maternal zebrafish genome after fertilization to match the paternal methylation pattern.
Reprogramming the maternal zebrafish genome after fertilization to match the paternal methylation pattern.
复制标题
DOI：
10.1016/j.cell.2013.04.030
复制
发表时间：
2013-05-09
期刊：
影响因子：
64.5
通讯作者：
Cairns BR
中科院分区：
文献类型：
--
作者：
Potok ME;Nix DA;Parnell TJ;Cairns BR
Early vertebrate embryos must achieve totipotency and prepare for zygotic genome activation (ZGA). To understand this process, we determined the DNA methylation (DNAme) profiles of zebrafish gametes, embryos at different stages, and somatic muscle and compared them to gene activity and histone modifications. Sperm chromatin patterns are virtually identical to those at ZGA. Unexpectedly, the DNA of many oocyte genes important for germ-line functions (i.e., piwil1) or early development (i.e., hox genes) is methylated, but the loci are demethylated during zygotic cleavage stages to precisely the state observed in sperm, even in parthenogenetic embryos lacking a replicating paternal genome. Furthermore, this cohort constitutes the genes and loci that acquire DNAme during development (i.e., ZGA to muscle). Finally, DNA methyltransferase inhibition experiments suggest that DNAme silences particular gene and chromatin cohorts at ZGA, preventing their precocious expression. Thus, zebrafish achieve a totipotent chromatin state at ZGA through paternal genome competency and maternal genome DNAme reprogramming.
登录
查看更多内容
影响因子：
64.8
作者：
Hajkova, Petra;Ancelin, Katia;Waldmann, Tanja;Lacoste, Nicolas;Lange, Ulrike C.;Cesari, Francesca;Lee, Caroline;Almouzni, Genevieve;Schneider, Robert;Surani, M. Azim
通讯作者：
Surani, M. Azim
影响因子：
4.5
作者：
Kobayashi H;Sakurai T;Imai M;Takahashi N;Fukuda A;Yayoi O;Sato S;Nakabayashi K;Hata K;Sotomaru Y;Suzuki Y;Kono T
通讯作者：
Kono T
影响因子：
2.7
作者：
Martin, CC;Laforest, L;Ekker, M
通讯作者：
Ekker, M
影响因子：
16.8
作者：
Brykczynska, Urszula;Hisano, Mizue;Peters, Antoine H. F. M.
通讯作者：
Peters, Antoine H. F. M.
DOI：
10.1002/jez.b.21189
发表时间：
2007-09-15
影响因子：
2.2
作者：
Hoffman, Trevor L.;Javier, Anna L.;Schilling, Thomas F.
通讯作者：
Schilling, Thomas F.