Roy Sougata, Morse David
Institut de Recherche en BiologieVégétale, Département de Sciences Biologiques, Université de Montréal, 4101 Sherbrooke east, Montréal, QC H1X 2B2, Canada.
Microorganisms. 2013 Nov 1;1(1):71-99. doi: 10.3390/microorganisms1010071.
Dinoflagellates are of great importance to the marine ecosystem, yet scant details of how gene expression is regulated at the transcriptional level are available. Transcription is of interest in the context of the chromatin structure in the dinoflagellates as it shows many differences from more typical eukaryotic cells. Here we canvas recent transcriptome profiles to identify the molecular building blocks available for the construction of the transcriptional machinery and contrast these with those used by other systems. Dinoflagellates display a clear paucity of specific transcription factors, although surprisingly, the rest of the basic transcriptional machinery is not markedly different from what is found in the close relatives to the dinoflagellates.
甲藻对海洋生态系统至关重要，但在转录水平上基因表达如何调控的细节却知之甚少。鉴于甲藻的染色质结构与更典型的真核细胞有许多不同之处，转录成为了研究的关注点。在这里，我们梳理了近期的转录组概况，以确定可用于构建转录机制的分子构件，并将其与其他系统所使用的构件进行对比。甲藻显示出特定转录因子明显匮乏的情况，不过令人惊讶的是，其余基本转录机制与甲藻近亲中所发现的并无显著差异。
