Transcriptional analysis of sweet corn hybrids in response to crowding stress
| Autor: | Younhee Ko, Martin M. Williams, Eunsoo Choe |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
genetic structures
Starch Physiology Microarrays Gene Expression Plant Science Biochemistry Starches Heat Shock Response chemistry.chemical_compound Gene Expression Regulation Plant Plant Resistance to Abiotic Stress Photosynthesis Hectare Cellular Stress Responses Multidisciplinary Ecology Organic Compounds Plant Biochemistry food and beverages Eukaryota Plants Phenotype Droughts Horticulture Chemistry Bioassays and Physiological Analysis Experimental Organism Systems Cell Processes Plant Physiology Physical Sciences Medicine Research Article Science Carbohydrates Carbohydrate metabolism Biology Research and Analysis Methods Zea mays Fruits Crop Model Organisms Plant and Algal Models Stress Physiological Plant-Environment Interactions Genetics Plant Defenses Grasses Gene Hybrid Plant Ecology Gene Expression Profiling Ecology and Environmental Sciences Organic Chemistry Organisms Chemical Compounds Biology and Life Sciences Cell Biology Plant Pathology Maize chemistry Animal Studies Hybridization Genetic |
| Zdroj: | PLoS ONE PLoS ONE, Vol 16, Iss 6, p e0253190 (2021) |
| ISSN: | 1932-6203 |
| Popis: | Crop tolerance to crowding stress, specifically plant population density, is an important target to improve productivity in processing sweet corn. Due to limited knowledge of biological mechanisms involved in crowding stress in sweet corn, a study was conducted to 1) investigate phenotypic and transcriptional response of sweet corn hybrids under different plant densties, 2) compare the crowding stress response mechanisms between hybrids and 3) identify candidate biological mechanisms involved in crowding stress response. Yield per hectare of a tolerant hybrid (DMC21-84) increased with plant density. Yield per hectare of a sensitive hybrid (GSS2259P) declined with plant density. Transcriptional analysis found 694, 537, 359 and 483 crowding stress differentially expressed genes (DEGs) for GSS2259P at the Fruit Farm and Vegetable Farm and for DMC21-84 at the Fruit Farm and Vegetable Farm, respectively. Strong transcriptional change due to hybrid was observed. Functional analyses of DEGs involved in crowding stress also revealed that protein folding and photosynthetic processes were common response mechanisms for both hybrids. However, DEGs related to starch biosynthetic, carbohydrate metabolism, and ABA related processes were significant only for DMC21-84, suggesting the genes have closer relationship to plant productivity under stress than other processes. These results collectively provide initial insight into potential crowding stress response mechanisms in sweet corn. |
| Databáze: | OpenAIRE |
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