ArticleScientific reports2017
Massive expansion and differential evolution of small heat shock proteins with wheat (Triticum aestivum L.) polyploidization.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Genome-Wide Identification of theInternational journal of molecular sciences · 2026Article
- Article
- Pan-Genome-Wide Investigation and Co-Expression Network Analysis ofInternational journal of molecular sciences · 2024Article
- Duplicate Genes Contribute to Variability in Abiotic Stress Resistance in Allopolyploid Wheat.Plants (Basel, Switzerland) · 2023Review
- Genome-wide identification and expression analysis of theFrontiers in plant science · 2022Article
- Genome-Wide Analysis of the HSP20 Gene Family and Expression Patterns ofFrontiers in genetics · 2021Article
- Varying Architecture of Heat Shock Elements Contributes to Distinct Magnitudes of Target Gene Expression and Diverged Biological Pathways in Heat Stress Response of Bread Wheat.Frontiers in genetics · 2020Article
- Hybrid sequencing reveals insight into heat sensing and signaling of bread wheat.The Plant journal : for cell and molecular biology · 2019Article
- Triticum aestivum heat shock protein 23.6 interacts with the coat protein of wheat yellow mosaic virus.Virus genes · 2019Article
- Characterization and expression profiling of thePeerJ · 2019Article
- Article
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9 authors.
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Abstract
Wheat (Triticum aestivum), one of the world's most important crops, is facing unprecedented challenges due to global warming. To evaluate the gene resources for heat adaptation in hexaploid wheat, small heat shock proteins (sHSPs), the key plant heat protection genes, were comprehensively analysed in wheat and related species. We found that the sHSPs of hexaploid wheat were massively expanded in A and B subgenomes with intrachromosomal duplications during polyploidization. These expanded sHSPs were under similar purifying selection and kept the expressional patterns with the original copies. Generally, a strong purifying selection acted on the α-crystallin domain (ACD) and theoretically constrain conserved function. Meanwhile, weaker purifying selection and strong positive selection acted on the N-terminal region, which conferred sHSP flexibility, allowing adjustments to a wider range of substrates in response to genomic and environmental changes. Notably, in CI, CV, ER, MI and MII subfamilies, gene duplications, expression variations and functional divergence occurred before wheat polyploidization. Our results indicate the massive expansion of active sHSPs in hexaploid wheat may also provide more raw materials for evolving functional novelties and generating genetic diversity to face future global climate changes, and highlight the expansion of stress response genes with wheat polyploidization.
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