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Sextuple knockouts of a highly conserved and coexpressed AUXIN/INDOLE-3-ACETIC ACID gene set confer shade avoidance-like responses in Arabidopsis.

Plant, cell & environment - 1 Dec 2024

Yang Xinxing, Ma Yuan, Chen Jie, Huang Minhua, Qi Mengyuan, Han Ning, Bian Hongwu, Qiu Ting, Yan Qingfeng, Wang Junhui

Abstract excerpt

AUXIN/INDOLE-3-ACETIC ACIDs are transcriptional repressors for auxin signalling. Aux/IAAs of Arabidopsis thaliana display some functional redundancy. The IAA3/SHY2 clade (IAA1, IAA2, IAA3 and IAA4) show strong sequence similarity, but no higher-order mutants have been reported. Here, through CRISPR/Cas9 genome editing, we generated loss-of-function iaa1/2/3/4 mutants. The quadruple mutants only exhibited a weak...

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PMID: 39012193
DOI: 10.1111/pce.15039

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