Fig. 3

Homologous gene family analysis and DEGs gene expression analysis of Nl and Nr under the cold stress. A. Venn diagram of overall statistics of homologous gene families in Nl and Nr. B. Difference comparison volcano map. Red (upregulated expression) and blue (downregulated expression) points indicate that there is a difference in gene expression (judgement standard is FDR < 0.05, and the difference multiple is more than twice), and the black point is no difference