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The E3 Ubiquitin-Protein Ligase ZmBOIR3 Is a Key Regulator of Low-Temperature Tolerance in Maize Seedlings
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DOI：10.1021/acs.jafc.6c04159.png)
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Abstract
En 中文
Low-temperature stress seriously affects the growth and development of maize seedlings, endangering their quality and yield. In this study, the low-temperature tolerance at the seedling stage of 299 maize inbred lines was evaluated by using the membership function method. A genome-wide association study identified 12 SNPs associated with low-temperature tolerance. By integrating GWAS, RNA-seq, and metabolomics data, we identified a gene ZmBOIR3 encoding an E3 ubiquitin-protein ligase. Its involvement in low-temperature tolerance during seedling development was further supported by the RT-qPCR analysis. ZmBOIR3 may regulate the accumulation of secondary metabolites, influencing the plant hormone and membrane-associated signaling. Functional evidence from the ethylmethanesulfonate (EMS) mutant zmboir3 showed markedly reduced tolerance to low-temperature stress. ZmBOIR3 acts in synergy with ZmMYB147 and may be involved in the regulation of low-temperature tolerance in maize seedlings. These support its role in promoting seedling adaptation and deepen the current understanding of cold response pathways in maize.
Keywords:
Cell signaling
Genetics
Plant derived food
Plants
Stress
maize
seedlings
low-temperature
GWAS
zmboir3
Journal
IF:
6.2
Papers:
4.5W
Citations:
15.3W
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Cited Papers