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LSY-2 is essential for maintaining the germ-soma distinction in C. elegans
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  • 分类:Q949.718.2[生物学—植物学] TQ328.3[化学工程—合成树脂塑料工业]
  • 作者机构:[1]College of Life Sciences, Beijing Normal University, Beijing 100875, China, [2]National Institute of Biological Sciences, Beijing 102206, China, [3]State Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
  • 相关基金:We thank Dr. Bob Goldstein for gfp::pgl-1 strain, Dr. Oliver Hobert for Isy-2(ot64) and Dr. Isabel Hanson for editing the manuscript. Some strains used in this work were received from the Caenorhabditis Genetics Center, which is supported by a grant from the NIH. This work was supported by the National Basic Research Program (973 Program) (Nos. 2013CB910100 and 2011CB910100) and the National Natural Science Foundation of China (Grant Nos. 31421002 and 31225018) to H.Z, The research of Hong Zhang was supported in part by an International Early Career Scientist grant from the Howard Hughes Medical Institute.
中文摘要:

在动物开发期间指定并且维持细菌房间的特征的机制糟糕被理解。在这研究,我们证明锌手指基因 lsy-2 的功能的损失导致采用细菌房间特征的各种各样的体的房间,包括 germline 特定的 P 小粒,提高的 RNAi 活动和 transgene silencing 的表示。到在 lsy-2 异种的细菌转变的身体要求改变建筑群的多重染色质的活动,包括 MES-4 建筑群和 ISW-1 建筑群。在体的房间和基因表示侧面的不同 germline 特定的特征显示 LSY-2 在这个过程在 Mec 建筑群行动。我们的学习证明 lsy-2 在身体细菌区别的维护工作。

英文摘要:

The mechanisms that specify and maintain the charac- teristics of germ cells during animal development are poorly understood. In this study, we demonstrated that loss of function of the zinc-finger gene Isy-2 results in various somatic cells adopting germ cells characteris- tics, including expression of germline-specific P gran- ules, enhanced RNAi activity and transgene silencing. The soma to germ transformation in Isy-2 mutants requires the activities of multiple chromatin remodeling complexes, including the MES-4 complex and the ISW-1 complex. The distinct germline-specific features in somatic cells and the gene expression profile indicate that LSY-2 acts in the Mec complex in this process. Our study demonstrated that Isy-2 functions in the mainte- nance of the soma-germ distinction.

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