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<p>Climate change is resulting in substantial losses to crop yield worldwide. For breeding heat-tolerant crop plants in future agriculture, genes that provide heat tolerance need to be identified, and alleles of such genes imparting higher stress tolerance levels than accrued presently need to be uncovered. Potentially, such alleles may come from natural populations or be created by mutagenesis. HSP100 proteins representing ‘ATPases associated with diverse cellular activities (AAA+) superfamily proteins’ are strongly induced when plants experience heat stress. AAA+ proteins are widely noted in bacteria, yeast, plants and animals. These proteins are implicated in critical cellular functions for instance, the human AAA+ ATPase SKD3 protein is associated with human diseases with neutropenia and neurological disorders and in plants, HSP100 proteins are strongly linked with heat stress tolerance acquisition. Information on the nucleotide/amino acid sequence variations of plant HSP100 proteins has emerged from multiple genome sequencing projects/ point mutation analysis work. The present review focuses on sequence polymorphism in HSP100 proteins across diverse organisms and how the variations in HSP100 sequences may be exploited for the identification/production of its novel alleles for alleviating crop heat stress tolerance levels.</p>

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Genetic polymorphism and variation in HSP100 protein and its association with heat tolerance in plants

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Gayatri Tripathi,
  • Anil Grover

摘要

Climate change is resulting in substantial losses to crop yield worldwide. For breeding heat-tolerant crop plants in future agriculture, genes that provide heat tolerance need to be identified, and alleles of such genes imparting higher stress tolerance levels than accrued presently need to be uncovered. Potentially, such alleles may come from natural populations or be created by mutagenesis. HSP100 proteins representing ‘ATPases associated with diverse cellular activities (AAA+) superfamily proteins’ are strongly induced when plants experience heat stress. AAA+ proteins are widely noted in bacteria, yeast, plants and animals. These proteins are implicated in critical cellular functions for instance, the human AAA+ ATPase SKD3 protein is associated with human diseases with neutropenia and neurological disorders and in plants, HSP100 proteins are strongly linked with heat stress tolerance acquisition. Information on the nucleotide/amino acid sequence variations of plant HSP100 proteins has emerged from multiple genome sequencing projects/ point mutation analysis work. The present review focuses on sequence polymorphism in HSP100 proteins across diverse organisms and how the variations in HSP100 sequences may be exploited for the identification/production of its novel alleles for alleviating crop heat stress tolerance levels.