The H3K9 methyltransferase SETDB1 maintains female identity in Drosophila germ cells.
The H3K9 methyltransferase SETDB1 maintains female identity in Drosophila germ cells.
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DOI:
10.1038/s41467-018-06697-x
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发表时间:
2018-10-08
影响因子:
16.6
通讯作者:
Salz HK
中科院分区:
文献类型:
--
作者:
Smolko AE;Shapiro-Kulnane L;Salz HK
The preservation of germ cell sexual identity is essential for gametogenesis. Here we show that H3K9me3-mediated gene silencing is integral to female fate maintenance in Drosophila germ cells. Germ cell specific loss of the H3K9me3 pathway members, the H3K9 methyltransferase SETDB1, WDE, and HP1a, leads to ectopic expression of genes, many of which are normally expressed in testis. SETDB1 controls the accumulation of H3K9me3 over a subset of these genes without spreading into neighboring loci. At phf7, a regulator of male germ cell sexual fate, the H3K9me3 peak falls over the silenced testis-specific transcription start site. Furthermore, H3K9me3 recruitment to phf7 and repression of testis-specific transcription is dependent on the female sex determination gene Sxl. Thus, female identity is secured by an H3K9me3 epigenetic pathway in which Sxl is the upstream female-specific regulator, SETDB1 is the required chromatin writer, and phf7 is one of the critical SETDB1 target genes. Epigenetic regulation is critical for the maintenance of germ cell identity. Here the authors show that H3K9me3-mediated gene silencing is critical for repression of testis-specific transcription in Drosophila female germ cells, indicating H3K9me3 maintains female germ cell sexual identity.
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影响因子:
2.7
作者:
Clough E;Tedeschi T;Hazelrigg T
通讯作者:
Hazelrigg T
DOI:
10.1016/j.tig.2015.11.001
发表时间:
2016-01
期刊:
Trends in genetics : TIG
影响因子:
--
作者:
Becker JS;Nicetto D;Zaret KS
通讯作者:
Zaret KS
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
14.9
作者:
Leader DP;Krause SA;Pandit A;Davies SA;Dow JAT
通讯作者:
Dow JAT
影响因子:
4.6
作者:
Clough, Emily;Moon, Woongjoon;Hazelrigg, Tulle
通讯作者:
Hazelrigg, Tulle