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Analysis shows improved drought and heat tolerance in soybean with lower GmDIS1 expression, indicating that abiotic stress resilience may be enhanced through gene manipulation.
Soybean ( Glycine max ), is an important oilseed crop that plays a vital role in ensuring global food security. However, it is susceptible to multiple abiotic stresses that can reduce yield. The ubiquitination‐proteasome pathway is a crucial regulatory mechanism that controls a broad range of processes in plants. We investigated the function of Glycine max drought‐induced SINA ( GmDIS1 ), an E3 ligase gene, in soybean abiotic stress tolerance using Agrobacterium ‐mediated transformation to develop soybean GmDIS1‐RNAi transgenic lines. GmDIS1 was significantly induced under drought and heat stress. Several physiological traits revealed resilience of GmDIS1‐RNAi lines under drought and heat stress. The functions of stress‐related genes, such as AOS and GmPAL were investigated to dissect the pathways that contribute to drought and heat tolerance in GmDIS1‐RNAi lines. The results suggest that decreasing expression of GmDIS1 can enhance soybean tolerance to drought and heat, and also provide a significant target for developing more drought‐ and heat‐tolerant soybean varieties and other crops.
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Tiwari et al. (2025) studied this question.
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