GmBZL3 acts as a major BR signaling regulator through crosstalk with multiple pathways in Glycine max

BMC Plant Biology
Li SongHenry T Nguyen

Abstract

Brassinosteroids (BRs) play a crucial role in plant vegetative growth and reproductive development. The transcription factors BZR1 and BES1/BZR2 are well characterized as downstream regulators of the BR signaling pathway in Arabidopsis and rice. Soybean contains four BZR1-like proteins (GmBZLs), and it was reported that GmBZL2 plays a conserved role in BR signaling regulation. However, the roles of other GmBZLs have not been thoroughly studied, and the targets of GmBZLs in soybean remain unclear. In this study, we first characterized GmBZL3 in soybean from gene expression patterns, conserved domains in coding sequences, and genomic replication times of four GmBZL orthologous. The results indicated that GmBZL3 might play conserved roles during soybean development. The overexpression of GmBZL3P219L in the Arabidopsis BR-insensitive mutant bri1-5 partially rescued the phenotypic defects including BR-insensitivity, which provides further evidence that GmBZL3 functions are conserved between soybean and the homologous Arabidopsis genes. In addition, the identification of the GmBZL3 target genes through ChIP-seq technology revealed that BR has broad roles in soybean and regulates multiple pathways, including other hormone signaling, d...Continue Reading

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Citations

Dec 29, 2019·International Journal of Molecular Sciences·Isiaka Ibrahim MuhammadUmaiyal Munusamy
Oct 25, 2020·Journal of Experimental Botany·Kentaro MoriChristophe Rothan
Aug 28, 2021·International Journal of Molecular Sciences·Ling ChengWenfei Wang

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Methods Mentioned

BETA
transgenic
ChIP-seq
RNA-seq
immunoprecipitation
ChIP-chip
PCR
M13 sequencing
ChIP

Software Mentioned

ClustalW2
Bowtie
dCHIP
bedtools
MACS
MapMan Bin

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