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. 2016 Apr 27;16:105. doi: 10.1186/s12870-016-0791-7

Fig. 7.

Fig. 7

Expression of genes involved in ABA biosynthesis, catabolism, conjugation and signaling in citrus plants subjected to different stress treatments. Relative expression of ABA-biosynthetic gene CsNCED1 (a), ABA-related catabolism gene CsCYP707A1 (b), ABA-related conjugation genes CsAOG and CsBG18 (c-d) and ABA-signaling gene CsRAB18 (e) in leaves of Carrizo and Cleopatra plants in response to drought (WS), heat (HS) and their combination (WS + HS). Different letters denote statistical significance at p ≤ 0.05. G: genotypes; T: stress treatment; GxT: interaction genotype x stress treatment. *P < 0.05; **P < 0.01; ***P < 0.001; ns: no statistical differences