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Transcriptome-based miRNA and mRNA interaction analysis revealing the salt tolerance mechanism of Haidao 86

• 1、College of Life Sciences, ShanXi Normal University, Shanxi 041004, PR China
• 2、College of geographical sciences, ShanXi Normal University, Shanxi 041004, PR China
• 3、Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, PR
• 4、Wuzhou Agricultural Product Quality and Safety Integrated Test Center, Wuzhou 543300,
• 5、
• 6、Wuzhou Agricultural Product Quality and Safety Integrated Test Center, Wuzhou 543300

Abstract：Rice (Oryza sativa) is one of the most staple food cereal for almost half of people around in the world. Salt stress is possibly the main factor that seriously limiting rice growth and grain yield in the worldwide. High salt concentration may lead to plant suffer the nutrient stresses, osmotic stress and ionic poison. At the same time, most plants had improved a series of machines to adapt to the unfavorable environment, including reactive oxygen species scavenging system. The regulation of the expression of salt tolerance related genes and miRNA may participate in the resistent regulation by acting on the specific target genes. The cell surface-localized receptor-like protein kinases is the largest group of membrane receptors in plant, which conserved signaling components that participate in diverse life processes including growth, development and resistance of biotic and abiotic stress. In this study, by using a strong salt-tolerant rice resource, Haidao 86 , we research the transcriptome and small RNA sequencing results, and elucidate the relationship between miRNA and their corresponding mRNA targets, and explore the potential miRNA which may regulate the RLKs of rice to resistent the environment stress. This work maybe provide some theoretical basis for studying the improvment of rice salt tolerance in future.

keywords： Haidao 86, Salt stress, miRNA, RLK

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