Gene coexpression analysis reveals dose-dependent and type-specific networks responding to ionizing radiation in the aquatic model plant Lemna minor using public data

文献类型： 外文期刊

第一作者： Fu, Lili

作者： Fu, Lili;Ding, Zehong;Kumpeangkeaw, Anuwat;Sun, Xuepiao;Zhang, Jiaming

作者机构：

关键词： gamma radiation; beta radiation; uranium treatment; coexpression network; Lemna minor

期刊名称：JOURNAL OF GENETICS （ 影响因子：1.166； 五年影响因子：1.212 ）

ISSN： 0022-1333

年卷期： 2019 年 98 卷 1 期

页码：

收录情况： SCI

摘要： Ionizing radiations (IRs) are widespread damaging stresses to plant growth and development. However, the regulatory networks underlying the mechanisms of responses to IRs remains poorly understood. Here, a set of publicly available transcriptomic data (conducted by Van Hoeck et al. 2015a), in which Lemna minor plants were exposed to a series of doses of gamma, beta and uranium treatments was used to perform gene coexpression network analysis. Overall, the genes involved in DNA synthesis and chromatin structure, light signalling, photosynthesis, and carbohydrate metabolism were commonly responsive to gamma, beta and uranium treatments. Genes related to anthocyanin accumulation and trichome differentiation were specifically downregulated, and genes related to nitrogen and phosphate nutrition, cell vesicle transport, mitochondrial electron transport and ATP synthesis were specifically upregulated in response to uranium treatment. While genes involved in DNA damage and repair, RNA processing and RNA binding were specifically downregulated and genes involved in calcium signalling, redox and degradation of carbohydrate metabolism were specifically upregulated responding to gamma radiation. These findings revealed both dose-dependent and type-specific networks responding to different IRs in L. minor, and can be served as a useful resource to better understand the mechanisms of responses to different IRs in other plants.

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