Abstract
Drought is a primary cause of grain yield reduction that reduces agricultural production and seriously damage food security worldwide. Drought tolerance has a complex quantitative characteristic with a complicated phenotype that affects different developmental stages of plants. The level of susceptibility or tolerance of rice to several drought conditions is coordinated by the action of different drought-resistant genes. This study presents a bioinformatics approach to identify candidate rice drought-resistant genes based on other known related rice genes. By using the sub-network extraction algorithm with gene co-expression profile, we obtained the integrated network comprising of the known rice drought-resistant related genes (denoted as seed genes) and putative genes (denoted as linker genes). These genes are ranked according to the newly proposed rating scores. Some of the discovered candidate genes were validated by the previous scientific literature and gene set enrichment analysis. The results offer useful gene information that serve as guidance for the researchers and rice breeders. In addition, the proposed approach is sufficiently effective to be applied on other crops via biological network analysis.
Y. Gao and Y. Chen—These authors contributed equally to this work
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Funding
This work was supported by the National Key Research and Development Project (2017YFD0301303), the Natural Science Young Foundation of Anhui Agricultural University (2019zd12) and the Introduction and Stabilization of Talent Project of Anhui Agricultural University (yj2019-32).
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Gao, Y. et al. (2020). Identification of Rice Drought-Resistant Gene Based on Gene Expression Profiles and Network Analysis Algorithm. In: Huang, DS., Jo, KH. (eds) Intelligent Computing Theories and Application. ICIC 2020. Lecture Notes in Computer Science(), vol 12464. Springer, Cham. https://doi.org/10.1007/978-3-030-60802-6_26
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DOI: https://doi.org/10.1007/978-3-030-60802-6_26
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