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Fig. 7 | BMC Genomics

Fig. 7

From: Genome-wide investigation and expression profiling of polyphenol oxidase (PPO) family genes uncover likely functions in organ development and stress responses in Populus trichocarpa

Fig. 7

RT-qPCR analysis of the expression profile of PPO genes. a Transcript-level analysis of five PtrPPOs in various tissues. YL, young leaf; AL, adult leaf; OL, old leaf; P, phloem; X, xylem; R, root. Transcript levels of the five PtrPPOs in response to PEG (b), ABA (c), and MeJA (d) were determined using RT-qPCR. Values are means + SE (n = 20). Asterisks denote significant differences: *P ≤ 0.05; **P ≤ 0.01

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BMC Genomics

ISSN: 1471-2164

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