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. 2019 Nov 22;10:2514. doi: 10.3389/fmicb.2019.02514

FIGURE 6.

FIGURE 6

Characterization of cutinase-coding genes in A. alternata. (A) Unrooted phylogenetic tree showing the relationships of 14 cutinase proteins identified in the genome of A. alternata with other 62 orthogs identified from other plant pathogenic fungi. Amino acid sequences were aligned using Clustal W. Phylogenetic tree was constructed using the neighbor-joining method available in MEGA 6.0. (B) Schematic showing cutinase domains in two cutinases: Cut3 (AALT_g1915) and Cut7 (AALT_g8018), whose transcripts were decreased considerably in the AaSte12 deficiency strain. (C) Quantitative measurement of cutinase activities in the wild-type strain (Z7), the Cut3 deficiency strain (ΔCut3), the Cut7 deficiency (ΔCut7) strain, and the Cut3 Cut7 double mutation strain (ΔΔCut3/7). ∗∗Significant differences (P < 0.01).