Enrichment of differentially expressed photosynthesis-related genes in various comparison groups.

‘+’ represents upregulation, and ‘-’ represents upregulation. The numbers between the parentheses represent the total number of upregulated and downregulated genes in the corresponding pathway, respectively.符号‘+’代表基因表达上调（upregulation），符号‘-’代表基因表达下调（downregulation）。括号内的数字分别代表相应通路中上调基因与下调基因的总数量。