Correlation Between Effector Gene Expression Targeted by lncRNAs in the Oomycete Fish Pathogen, Saprolegnia parasitica

IF 2.6 3区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Lijuan Liao, Zihao Zhao, Ruoxiao Zhang, Chaoqun Luo, Yibo Hu, Ziquan Yu, Jun Cui
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引用次数: 0

Abstract

Saprolegniasis caused by Saprolegnia parasitica leads to significant economic losses in the aquaculture industry worldwide. Effector proteins secreted by pathogens are key molecules involved in their pathogenicity and long non-coding lncRNAs (lncRNAs) act as regulators in these processes. However, little is known about the lncRNAs and effector proteins in S. parasitica. Here, we first identified 1027 lncRNAs during the developmental stages and infection process of S. parasitica. Compared with mRNAs, these lncRNAs had shorter sequences and exon lengths and lower expression levels. In addition, their sequence conservation among other oomycete species was also low. The S. parasitica lncRNAs were characterized according to developmental stage and infection time point. We also identified effector proteins using a computational pipeline. In total, 131 S. parasitica effector proteins were identified and classified into 34 families. The 47 genes encoding effector genes were neighbors of 39 lncRNAs, and there was a correlation between the transcription level of lncRNAs and their neighboring genes. Gain- and loss-of-function experiments revealed that lncRNA8375.2 promoted the expression of a neighboring effector gene, SpCAP. Our results provide new data on S. parasitica lncRNAs and effector proteins, and provide insights into the lncRNA-effector module involved in S. parasitica.

鱼类卵菌病原体寄生酵母菌中 lncRNA 靶标效应基因表达之间的相关性
由寄生沙门氏菌引起的沙门氏菌病给全球水产养殖业造成了巨大的经济损失。病原体分泌的效应蛋白是参与其致病性的关键分子,而长非编码 lncRNA(lncRNA)则是这些过程的调控因子。然而,人们对寄生虫中的 lncRNAs 和效应蛋白知之甚少。在这里,我们首次发现了寄生虫发育阶段和感染过程中的1027个lncRNA。与mRNA相比,这些lncRNA的序列和外显子长度较短,表达水平较低。此外,它们在其他卵菌中的序列保守性也很低。我们根据发育阶段和感染时间点对寄生虫 lncRNA 进行了鉴定。我们还利用计算管道鉴定了效应蛋白。共鉴定出 131 种寄生虫效应蛋白,并将其分为 34 个家族。编码效应基因的47个基因是39个lncRNA的邻近基因,lncRNA的转录水平与其邻近基因之间存在相关性。功能增益和功能缺失实验显示,lncRNA8375.2能促进邻近效应基因SpCAP的表达。我们的研究结果为寄生虫lncRNA和效应蛋白提供了新的数据,并对寄生虫中涉及的lncRNA-效应模块提供了深入的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Marine Biotechnology
Marine Biotechnology 工程技术-海洋与淡水生物学
CiteScore
4.80
自引率
3.30%
发文量
95
审稿时长
2 months
期刊介绍: Marine Biotechnology welcomes high-quality research papers presenting novel data on the biotechnology of aquatic organisms. The journal publishes high quality papers in the areas of molecular biology, genomics, proteomics, cell biology, and biochemistry, and particularly encourages submissions of papers related to genome biology such as linkage mapping, large-scale gene discoveries, QTL analysis, physical mapping, and comparative and functional genome analysis. Papers on technological development and marine natural products should demonstrate innovation and novel applications.
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