Genomes on the edge: programmed genome instability in ciliates.

Genomes on the edge: programmed genome instability in ciliates.
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DOI:
10.1016/j.cell.2013.01.005
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发表时间:
2013-01-31
期刊:
影响因子:
64.5
通讯作者:
Landweber LF
Landweber LF
中科院分区:
生物学1区
文献类型:
--
作者:
Bracht JR;Fang W;Goldman AD;Dolzhenko E;Stein EM;Landweber LF

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纤毛虫是一类古老且多样化的微生物真核生物,已成为 RNA 介导的表观遗传的强大模型。它们拥有大量的微小和长非编码RNA,与包括转座酶在内的一系列蛋白质一起,在体细胞核发育过程中协调一系列广泛的基因组重排。这篇综述强调了三个重要主题:RNA 在塑造基因组结构中的显着作用、统一许多深度分化的纤毛虫遗传系统的最新发现,以及主要物种群体之间小 RNA 作用的令人惊讶的进化“标志变化”。
Ciliates are an ancient and diverse group of microbial eukaryotes that have emerged as powerful models for RNA-mediated epigenetic inheritance. They possess extensive sets of both tiny and long noncoding RNAs that, together with a suite of proteins that includes transposases, orchestrate a broad cascade of genome rearrangements during somatic nuclear development. This Review emphasizes three important themes: the remarkable role of RNA in shaping genome structure, recent discoveries that unify many deeply diverged ciliate genetic systems, and a surprising evolutionary “sign change” in the role of small RNAs between major species groups.
DOI: 10.1016/j.cell.2012.10.045
发表时间: 2012-12-07
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