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首页> 外文期刊>Comparative and functional genomics >Regulation of Long Noncoding RNAs Responsive to Phytoplasma Infection in Paulownia tomentosa
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Regulation of Long Noncoding RNAs Responsive to Phytoplasma Infection in Paulownia tomentosa

机译：响应毛泡桐的细胞质感染的长非编码RNA的调控。

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摘要

Paulownia witches’ broom caused by phytoplasma infection affects the production of Paulownia trees worldwide. Emerging evidence showed that long noncoding RNAs (lncRNA) play a protagonist role in regulating the expression of genes in plants. So far, the identification of lncRNAs has been limited to a few model plant species, and their roles in mediating responses to Paulownia tomentosa that free of phytoplasma infection are yet to be characterized. Here, whole-genome identification of lncRNAs, based on strand-specific RNA sequencing, from four Paulownia tomentosa samples, was performed and identified 3689 lncRNAs. These lncRNAs showed low conservation among plant species and some of them were miRNA precursors. Further analysis revealed that the 112 identified lncRNAs were related to phytoplasma infection. We predicted the target genes of these phytoplasma-responsive lncRNAs, and our analysis showed that 51 of the predicted target genes were alternatively spliced. Moreover, we found the expression of the lncRNAs plays vital roles in regulating the genes involved in the reactive oxygen species induced hypersensitive response and effector-triggered immunity in phytoplasma-infected Paulownia. This study indicated that diverse sets of lncRNAs were responsive to Paulownia witches’ broom, and the results will provide a starting point to understand the functions and regulatory mechanisms of Paulownia lncRNAs in the future.
机译：植原体感染引起的泡桐女巫扫帚影响了全世界泡桐树的生产。新兴证据表明，长非编码RNA（lncRNA）在调节植物基因表达中起着主角的作用。到目前为止，lncRNA的鉴定仅限于几种模型植物物种，其在介导无细胞质感染的毛泡桐的反应中的作用尚待鉴定。在此，根据来自四个泡桐的样品的链特异性RNA测序，对lncRNA进行全基因组鉴定，并鉴定出3689个lncRNA。这些lncRNA在植物中的保守性较低，其中一些是miRNA的前体。进一步的分析表明，鉴定出的112种lncRNA与植物质体感染有关。我们预测了这些对植物质体反应的lncRNA的靶基因，我们的分析表明51个预测的靶基因是可变剪接的。此外，我们发现lncRNAs的表达在调节活性氧引起的超敏反应和效应器触发的免疫性中感染了被质体感染的泡桐中的基因。这项研究表明，各种各样的lncRNA对泡桐女巫的扫帚有反应，并且该结果将为了解未来的泡桐lncRNA的功能和调控机制提供一个起点。

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