Article
An ancient transcription factor initiates the burst of piRNA production during early meiosis in mouse testes.
Molecular cell - 11 Apr 2013
Li Xin Zhiguo, Roy Christian K, Dong Xianjun, Bolcun-Filas Ewelina, Wang Jie, Han Bo W, Xu Jia, Moore Melissa J, Schimenti John C, Weng Zhiping, Zamore Phillip D
Abstract excerpt
Animal germ cells produce PIWI-interacting RNAs (piRNAs), small silencing RNAs that suppress transposons and enable gamete maturation. Mammalian transposon-silencing piRNAs accumulate early in spermatogenesis, whereas pachytene piRNAs are produced later during postnatal spermatogenesis and account for >95% of all piRNAs in the adult mouse testis. Mutants defective for pachytene piRNA pathway proteins fail to...
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