ArticleBMC genomics2009
Rice sHsp genes: genomic organization and expression profiling under stress and development.
Article in BMC genomics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers.
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Who cites it
125 citing papers in PubMed, 318 citations in OpenAlex.
- Mining the sHSP20 (small heat-shock protein) gene family in finger millet (Eleusine coracana (L.) Gaertn.): structural, evolutionary and predicted abiotic-stress-responsive insights.Journal of applied genetics · 2026Article
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- bZIP63.5 Regulates a Zinc-Finger Mediated Detoxification Network in Trichoderma Harzianum for Enhanced Biocontrol of Alternaria alternata.Microbial biotechnology · 2026Article
- Genome-wide characterization, evolutionary and expression pattern analysis of the sHSP family genes in orchardgrass and functional characterization under abiotic stress.BMC plant biology · 2025Article
- Genome-wide identification and multi-level analysis of the HSP gene superfamily in Aphidoletes aphidimyza: sHSP gene family expansion and its role in diapause regulation.BMC genomics · 2025Article
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- OsHsp20-25, a small heat shock protein, from long-lived mRNA regulates seed size and germination rate in rice.Planta · 2025Article
- Identification of the HSP20 Gene Family inGenes · 2025Article
- Transcriptomic analysis of rice cultivars with distinct resistance mechanisms toFrontiers in plant science · 2025Article
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- ZmHsp18 screened from the ZmHsp20 gene family confers thermotolerance in maize.BMC plant biology · 2024Article
- Genome-Wide Analysis of Heat Shock Protein Family and Identification of Their Functions in Rice Quality and Yield.International journal of molecular sciences · 2024Article
- Comprehensive molecular evolutionary analysis of small heat shock proteins in five diploid Gossypium species.The plant genome · 2024Article
- LrHSP17.2 Plays an Important Role in Abiotic Stress Responses by Regulating ROS Scavenging and Stress-Related Genes inPlants (Basel, Switzerland) · 2024Article
- Genome-wide profile analysis of the Hsp20 family in lettuce and identification of its response to drought stress.Frontiers in plant science · 2024Article
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- Physiological traits, gene expression responses, and proteomics of rice varieties varying in heat stress tolerance at the flowering stage.Frontiers in plant science · 2024Article
- Integrated analysis of HSP20 genes in the developing flesh of peach: identification, expression profiling, and subcellular localization.BMC plant biology · 2023Article
- Genome-wide analysis and characterization of HSP gene families (HSP20, HSP40, HSP60, HSP70, HSP90) in the yellow fever mosquito (Aedes aegypti) (Diptera: Culicidae).Journal of insect science (Online) · 2023Article
65 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHeat shock proteins (Hsps) constitute an important component in the heat shock response of all living systems. Among the various plant Hsps (i.e. Hsp100, Hsp90, Hsp70 and Hsp20), Hsp20 or small Hsps (sHsps) are expressed in maximal amounts under high temperature stress. The characteristic feature of the sHsps is the presence of alpha-crystallin domain (ACD) at the C-terminus. sHsps cooperate with Hsp100/Hsp70 and co-chaperones in ATP-dependent manner in preventing aggregation of cellular proteins and in their subsequent refolding. Database search was performed to investigate the sHsp gene family across rice genome sequence followed by comprehensive expression analysis of these genes.
resultsWe identified 40 alpha-crystallin domain containing genes in rice. Phylogenetic analysis showed that 23 out of these 40 genes constitute sHsps. The additional 17 genes containing ACD clustered with Acd proteins of Arabidopsis. Detailed scrutiny of 23 sHsp sequences enabled us to categorize these proteins in a revised scheme of classification constituting of 16 cytoplasmic/nuclear, 2 ER, 3 mitochondrial, 1 plastid and 1 peroxisomal genes. In the new classification proposed herein nucleo-cytoplasmic class of sHsps with 9 subfamilies is more complex in rice than in Arabidopsis. Strikingly, 17 of 23 rice sHsp genes were noted to be intronless. Expression analysis based on microarray and RT-PCR showed that 19 sHsp genes were upregulated by high temperature stress. Besides heat stress, expression of sHsp genes was up or downregulated by other abiotic and biotic stresses. In addition to stress regulation, various sHsp genes were differentially upregulated at different developmental stages of the rice plant. Majority of sHsp genes were expressed in seed.
conclusionWe identified twenty three sHsp genes and seventeen Acd genes in rice. Three nucleocytoplasmic sHsp genes were found only in monocots. Analysis of expression profiling of sHsp genes revealed that these genes are differentially expressed under stress and at different stages in the life cycle of rice plant.
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