Additional file 2 of Morphological, physiological, and transcriptional responses to low nitrogen stress in Populus deltoides Marsh. clones with contrasting nitrogen use efficiency

Additional file 2: Table S1. Low nitrogen adaptation coefficients of the traits of N-efficient and N-inefficient genotypes. Table S2. Differences in enzyme activities, total amino acid contents, and soluble sugar contents in leaves during N treatment of N-efficient (A) and N-inefficient (C) genotypes. Table S3. Results of quality analysis of the RNA sequencing data. Table S4. Genes in the ‘magenta’ module. Table S5. Annotation description of the top 10 genes for connectivity (hub genes) in the ‘magenta’ module. Table S6. Annotation of transcription factors in the ‘magenta’ module. Table S7. The reaction system of quantitative real-time reverse transcription PCR (qRT-PCR). Table S8. Primers used for quantitative real-time reverse transcription PCR (qRT-PCR) analysis.

附加文件2：表S1。氮高效基因型与氮低效基因型的性状低氮适应系数。表S2：氮高效（A）与氮低效（C）基因型在氮处理过程中叶片的酶活性、总氨基酸含量及可溶性糖含量差异。表S3：RNA测序（RNA sequencing）数据质量分析结果。表S4：‘品红色（magenta）’模块所含基因。表S5：‘品红色（magenta）’模块内连接度排名前十的基因（枢纽基因hub genes）的注释描述。表S6：‘品红色（magenta）’模块中转录因子的注释信息。表S7：实时定量反转录聚合酶链式反应（qRT-PCR）反应体系。表S8：实时定量反转录聚合酶链式反应（qRT-PCR）分析所用引物。