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Integrative analyses of transcriptomics and metabolomics upon seed germination of foxtail millet in response to salinity

文献类型： 外文期刊

作者： Pan, Jiaowen 1 ; Li, Zhen 1 ; Dai, Shaojun 6 ; Ding, Hanfeng 3 ; Wang, Qingguo 1 ; Li, Xiaobo 5 ; Ding, Guohua 5 ; Wang, 1 ;

作者机构： 1.Shandong Acad Agr Sci, Biotechnol Res Ctr, Key Lab Genet Improvement Ecol & Physiol Crops, Jinan 250100, Shandong, Peoples R China

2.Shandong Acad Agr Sci, Crop Res Inst, Shandong Engn Lab Featured Crops, Jinan 250100, Shandong, Peoples R China

3.Shandong Acad Agr Sci, Shandong Ctr Crop Germplasm Resources, Jinan 250100, Shandong, Peoples R China

4.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Shandong, Peoples R China

5.Harbin Normal Univ, Sch Life Sci & Technol, Harbin 150025, Heilongjiang, Peoples R China

6.Shanghai Normal Univ, Coll Life Sci, Dev Ctr Plant Germplasm Resources, Shanghai 200234, Peoples R China

7.Shandong Acad Grape, Shandong Engn Res Ctr Grape Cultivat & Deep Proc, Jinan 250100, Shandong, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Salinity stress has become an expanding threat to food security worldwide. Revealing the mechanisms of salinity tolerance in plants has immense significance. Foxtail millet (Setaria italica L.) has been regarded as a model crop for exploring mechanisms under stress, considering its extreme adaptation abilities to adverse ecologies. In present study, two foxtail millet cultivars of Yugu2 and An04 with contrasting salt tolerance properties were investigated through integrative analyses of transcriptomics and metabolomics. In the transcriptomics results, 8887 and 12,249 DEGs were identified in Yugu2 and An04 in response to salinity, respectively, and 3149 of which were overlapped between two varieties. These salinity-responsive genes indicated that ion transport, redox homeostasis, phytohormone metabolism, signaling and secondary metabolism were enriched in Yugu2 by GO and KEGG analyses. The integrative omics analysis implied that phenylpropanoid, flavonoid and lignin biosynthesis pathways, and lysophospholipids were vital in determining the foxtail millet salinity tolerance. Importantly, the tolerance of Yugu2 attributed to higher efficiencies of ion channel and antioxidant system. All these provide a comprehensive regulatory network of foxtail millet to cope with salinity, and shed some lights on salt tolerance which is relevant for other cereal crops.

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