Maciel Lucas F, Morales-Vicente David A, Verjovski-Almeida Sergio
Laboratório de Expressão Gênica em Eucariotos, Instituto Butantan, São Paulo SP 05503-900, Brazil.
Programa Interunidades em Bioinformática, Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo SP 05508-900, Brazil.
Noncoding RNA. 2020 Apr 1;6(2):15. doi: 10.3390/ncrna6020015.
is a flatworm that causes schistosomiasis, a neglected tropical disease. RNA-Seq analyses has been previously reported in the literature on females and males obtained during sexual maturation from 14 to 28 days post-infection in mouse, resulting in the identification of protein-coding genes and pathways, whose expression levels were related to sexual development. However, this work did not include an analysis of long non-coding RNAs (lncRNAs). Here, we applied a pipeline to identify and annotate lncRNAs in 66 RNA-Seq publicly available libraries, from different life-cycle stages. We also performed co-expression analyses to find stage-specific lncRNAs possibly related to sexual maturation. We identified 12,291 expressed lncRNAs. Sequence similarity search and synteny conservation indicated that some 14% of intergenic lncRNAs have synteny conservation with intergenic lncRNAs. Co-expression analyses showed that lncRNAs and protein-coding genes in males and females have a dynamic co-expression throughout sexual maturation, showing differential expression between the sexes; the protein-coding genes were related to the nervous system development, lipid and drug metabolism, and overall parasite survival. Co-expression pattern suggests that lncRNAs possibly regulate these processes or are regulated by the same activation program as that of protein-coding genes.
是一种导致血吸虫病(一种被忽视的热带疾病)的扁形虫。此前已有文献报道了对感染小鼠后14至28天性成熟过程中获取的雌雄个体进行的RNA测序分析,从而鉴定出了与性发育相关的蛋白质编码基因和信号通路,其表达水平与性发育有关。然而,这项工作并未包括对长链非编码RNA(lncRNA)的分析。在此,我们应用了一套流程,在来自不同生命周期阶段的66个公开可用的RNA测序文库中鉴定和注释lncRNA。我们还进行了共表达分析,以找到可能与性成熟相关的阶段特异性lncRNA。我们鉴定出了12291个表达的lncRNA。序列相似性搜索和共线性保守分析表明,约14%的基因间lncRNA与基因间lncRNA具有共线性保守性。共表达分析表明,雌雄个体中的lncRNA和蛋白质编码基因在整个性成熟过程中具有动态共表达,呈现出性别差异表达;蛋白质编码基因与神经系统发育、脂质和药物代谢以及寄生虫的整体存活有关。共表达模式表明,lncRNA可能调控这些过程,或者受与蛋白质编码基因相同的激活程序调控。