WGCNA analysis of the effect of exogenous BR on leaf angle of maize mutant lpa1

Author:

Ji Xiangzhuo,Gao Qiaohong,Zhuang Zelong,Chang Fangguo,Peng Yunling

Abstract

AbstractLeaf angle, as one of the important agronomic traits of maize, can directly affect the planting density of maize, thereby affecting its yield. Here we used the ZmLPA1 gene mutant lpa1 to study maize leaf angle and found that the lpa1 leaf angle changed significantly under exogenous brassinosteroid (BR) treatment compared with WT (inbred line B73). Transcriptome sequencing of WT and lpa1 treated with different concentrations of exogenous BR showed that the differentially expressed genes were upregulated with auxin, cytokinin and brassinosteroid; Genes associated with abscisic acid are down-regulated. The differentially expressed genes in WT and lpa1 by weighted gene co-expression network analysis (WGCNA) yielded two gene modules associated with maize leaf angle change under exogenous BR treatment. The results provide a new theory for the regulation of maize leaf angle by lpa1 and exogenous BR.

Funder

the Major Special Projects in Gansu Province

the National Key Research and Development Project

Publisher

Springer Science and Business Media LLC

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