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Expression profiles of genes highly accumulated in mid-winter. a The top 12 most abundant genes in needles in mid-winter are shown. The numbers above each bar indicate the sum of the abundance of these genes. b The percentages of these 12 genes by expression level accounted for the total mRNA. *P < 0.05, ** P < 0.01, *** P < 0.001. Error bars indicate SEs of at least six biological replicates
