Kannan Kavya, Shook Molly, Li Yang, Robinson Gene E, Ma Jian
Carl R. Woese Institute for Genomic Biology, Department of Entomology, Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
G3 (Bethesda). 2019 Apr 9;9(4):1055-1063. doi: 10.1534/g3.118.200857.
RNA-seq has proven to be a powerful tool to unravel various aspects of the transcriptome, especially the quantification of alternative splicing (AS) that leads to isoform diversity. The honey bee () is an important model organism for studying the molecular underpinnings of behavioral plasticity and social behavior, and recent RNA-seq studies of honey bees have revealed AS patterns and their regulation by DNA methylation. However, tissue-specific AS patterns have not been fully explored. In this paper, we characterized AS patterns in two different honey bee tissue types, and also explored their conservation and regulation. We used the RNA-seq data from brain and fat body to improve the existing models of honey bee genes and identified tissue-specific AS patterns. We found that AS genes show high conservation between honey bee and We also confirmed and extended previous findings of a correlation between gene body DNA methylation and AS patterns, providing further support for the role of DNA methylation in regulating AS. In addition, our analysis suggests distinct functional roles for tissue-specific alternatively spliced genes. Taken together, our work provides new insights into the conservation and dynamics of AS patterns across different tissue types.
RNA测序已被证明是揭示转录组各个方面的有力工具,尤其是对导致异构体多样性的可变剪接(AS)进行定量分析。蜜蜂是研究行为可塑性和社会行为分子基础的重要模式生物,最近对蜜蜂的RNA测序研究揭示了可变剪接模式及其受DNA甲基化的调控。然而,组织特异性可变剪接模式尚未得到充分探索。在本文中,我们对两种不同的蜜蜂组织类型中的可变剪接模式进行了表征,并探讨了它们的保守性和调控机制。我们利用来自大脑和脂肪体的RNA测序数据改进了现有的蜜蜂基因模型,并确定了组织特异性可变剪接模式。我们发现可变剪接基因在蜜蜂和[此处原文缺失相关物种名]之间具有高度保守性。我们还证实并扩展了先前关于基因体DNA甲基化与可变剪接模式之间相关性的研究结果,为DNA甲基化在调控可变剪接中的作用提供了进一步支持。此外,我们的分析表明组织特异性可变剪接基因具有不同的功能作用。综上所述,我们的工作为不同组织类型中可变剪接模式的保守性和动态变化提供了新见解。