Transcriptomic Analysis Of Long Non-Coding R.nas And Coding Genes U ncovers A Complex Regulatory Network That Is Involved In Maize Seed Development
文献类型: 外文期刊
作者: Xu, Miaoyun;Wang, Lei;Zhu, Ming;Zhu, Ming;Zhang, Min;Jiang, Haiyang;Xing, Lijuan;Li, Wenzong
作者机构:
关键词: maize; seed development; lncRNA; mRNA; co-expression; ceRNA
期刊名称: GENES
ISSN: 2073-4425
年卷期: 2017 年 8 卷 10 期
页码:
摘要: Long non-coding RNAs (lncRNAs) have been reported to be involved in the development of maize plant. However, few focused on seed development of maize. Here, we identified 753 lncRNA candidates in maize genome from six seed samples. Similar to the mRNAs, lncRNAs showed tissue developmental stage specific and differential expression, indicating their putative role in seed development. Increasing evidence shows that crosstalk among RNAs mediated by shared microRNAs (miRNAs) represents a novel layer of gene regulation, which plays important roles in plant development. Functional roles and regulatory mechanisms of lncRNAs as competing endogenous RNAs (ceRNA) in plants, particularly in maize seed development, are unclear. We combined analyses of consistently altered 17 lncRNAs, 840 mRNAs and known miRNA to genome-wide investigate potential lncRNA-mediated ceRNA based on ceRNA hypothesis. The results uncovered seven novel lncRNAs as potential functional ceRNAs. Functional analyses based on their competitive coding-gene partners by Gene Ontology (GO) and KEGG biological pathway demonstrated that combined effects of multiple ceRNAs can have major impacts on general developmental and metabolic processes in maize seed. These findings provided a useful platform for uncovering novel mechanisms of maize seed development and may provide opportunities for the functional characterization of individual lncRNA in future studies.
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