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鉴定和比较分析水稻害虫褐飞虱中的 microRNAs。

Characterization and comparative analysis of microRNAs in the rice pest Sogatella furcifera.

机构信息

Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China.

CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.

出版信息

PLoS One. 2018 Sep 24;13(9):e0204517. doi: 10.1371/journal.pone.0204517. eCollection 2018.

DOI:10.1371/journal.pone.0204517
PMID:30248141
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6152972/
Abstract

MicroRNAs (miRNAs) are a class of endogenous regulatory RNA molecules 21-24 nucleotides in length that act as functional regulators of post-transcriptional repression of messenger RNA. We report the identification and characterization of a conserved miRNA and 171 novel miRNAs in the migratory rice pest Sogatella furcifera by deep sequencing, which were observed to be biased towards female adults of the insect, modulating the functionality and targets of the miRNAs in sex differentiation. A switch in arm usage was also observed in 9 miRNA when compared to the insect ancestor during insect evolution. The miRNA loci showed high 5' fidelity in both miRNA and star species and about 93.4% of WBPH miRNAs conserved within non-planthopper species were homologous with planthopper species. The novel miRNAs identified in this study provide a better understanding of the sRNA and the regulatory role of miRNA in sexual dimorphism and alteration in the expression or function of miRNAs in the rice pest.

摘要

微 RNA（miRNAs）是一类长度为 21-24 个核苷酸的内源性调节 RNA 分子，作为信使 RNA 转录后抑制的功能性调节因子发挥作用。我们通过深度测序，在迁飞性水稻害虫褐飞虱中鉴定并描述了一个保守的 miRNA 和 171 个新的 miRNA，这些 miRNA 偏向于昆虫的雌性成虫，调节 miRNA 在性别分化中的功能和靶标。与昆虫进化过程中的昆虫祖先相比，在 9 个 miRNA 中也观察到臂的使用发生了转变。miRNA 基因座在 miRNA 和星物种中都表现出 5'保真度高，在非叶蝉物种中约 93.4%的 WBPH miRNA 与叶蝉物种同源。本研究中鉴定的新 miRNA 为理解 sRNA 以及 miRNA 在性二态性中的调节作用，以及在水稻害虫中 miRNA 的表达或功能的改变提供了更好的认识。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/a0f13bbb70b4/pone.0204517.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/f181dbbdb89a/pone.0204517.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/a9aee12cae5f/pone.0204517.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/31573fe25a39/pone.0204517.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/090cf31677db/pone.0204517.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/a0f13bbb70b4/pone.0204517.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/f181dbbdb89a/pone.0204517.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/a9aee12cae5f/pone.0204517.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/31573fe25a39/pone.0204517.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/090cf31677db/pone.0204517.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fd63/6152972/a0f13bbb70b4/pone.0204517.g005.jpg

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