Multi‐omic dissection of the drought resistance traits of soybean landrace LX

• DOI: 10.1111/pce.14025
• Publication Date: 2021-02-09T02:29:16Z
• Authors: Bing Zhao; Shulin Zhang; Wenqi Yang; Bingyan Li; Chen Lan; Junli Zhang; Li Yuan; Yu Wang; Qiguang Xie; Jiwan Han; Luis A. J. Mur; Xingyu Hao; Jeremy A. Roberts; Yuchen Miao; Ke Yu; Xuebin Zhang
• Keywords: Drought Resistance

With diverse genetic backgrounds, soybean landraces are valuable resource for breeding programs. Herein, we apply multi-omic approaches to extensively characterize the molecular basis of drought tolerance in landrace LX. Initial screens established that LX performed better with PEG6000 treatment than control cultivars. germinated William 82 under conditions and accumulated more anthocyanin flavonoids. Untargeted mass spectrometry combination transcriptomic analyses revealed chemical diversity underlying overall performance landrace. Under conditions, significant differences expression a suite secondary metabolism genes, particularly those involved general phenylpropanoid pathway flavonoid but not lignin biosynthesis, were seen 82. The these genes correlated corresponding metabolites plants. Further correlation analysis between transcripts identified structural transcription factors likely responsible agronomic traits. activities some key biosynthetic or regulators confirmed through heterologous transgenic Arabidopsis hairy root transformation soybean. We propose regulatory mechanism based on adaptive traits this which could be relevance cultivated