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Identification of Pha13 involvement in PhaPR1 expression by CymMV-based VIGS system and sequence analysis.

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posted on 2018-09-13, 18:15 authored by Li Chang, Ho-Hsiung Chang, Jui-Che Chang, Hsiang-Chia Lu, Tan-Tung Wang, Duen-Wei Hsu, Yuh Tzean, An-Po Cheng, Yi-Shu Chiu, Hsin-Hung Yeh

(A) Expression level of Pha13, PhaPR1, and CymMV were analyzed by RT-PCR from leaves of P. aphrodite inoculated with buffer (Mock), or infiltrated with agrobacterium carrying pCymMV (Cy) or pCymMV-Pha13 (Pha13-VIGS). PhaUbiquitin 10 (PhaUBQ10) was used as a loading control, and the relative expression level of corresponding genes are indicated. (B) Domains of Pha13. Open rectangle indicates the entire protein. A20 (black rectangle) and AN1 (diagonally-striped rectangle), nuclear localization signal (open square with vertical lines), and 21-nucleotide position (short black line) used for designing hairpin RNA of Pha13 (hpPha13) are indicated. (C) Sequence alignment of A20/AN1 zinc finger domains of Pha13 with stress-associated proteins from Arabidopsis thaliana (AtSAP5, accession number: AT3G12630), and Oryza sativa (OsSAP3, accession number: LOC_Os01g56040.1; OsSAP5, accession number: LOC_Os02g32840.1) are shown. Conserved amino acid sequences are indicated with a black box. Conserved cysteine (C) and histidine (H) are indicated with a black triangle. (D) Primary sequence organization of A20 and AN1 domains. Xn: the number of amino acid residues between zinc ligands. (B to D) The mutation positions for domain functional analysis are indicated with red triangle.

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