Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.)
Genome–environment Associations (GEA) or Environmental Genome-Wide Association scans (EnvGWAS) have been poorly applied for studying the genomics of adaptive traits in bread wheat landraces (Triticum aestivum L.). We analyzed 990 landraces and seven climatic variables (mean temperature, maximum temp...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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MDPI
2022
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| Acceso en línea: | https://hdl.handle.net/10568/127057 |
| _version_ | 1855530985566765056 |
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| author | Gómez Espejo, Ana L. Sansaloni, Carolina P. Burgueño, Juan Toledo, Fernando H. Benavides-Mendoza, Adalberto Reyes Valdés, M. Humberto |
| author_browse | Benavides-Mendoza, Adalberto Burgueño, Juan Gómez Espejo, Ana L. Reyes Valdés, M. Humberto Sansaloni, Carolina P. Toledo, Fernando H. |
| author_facet | Gómez Espejo, Ana L. Sansaloni, Carolina P. Burgueño, Juan Toledo, Fernando H. Benavides-Mendoza, Adalberto Reyes Valdés, M. Humberto |
| author_sort | Gómez Espejo, Ana L. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Genome–environment Associations (GEA) or Environmental Genome-Wide Association scans (EnvGWAS) have been poorly applied for studying the genomics of adaptive traits in bread wheat landraces (Triticum aestivum L.). We analyzed 990 landraces and seven climatic variables (mean temperature, maximum temperature, precipitation, precipitation seasonality, heat index of mean temperature, heat index of maximum temperature, and drought index) in GEA using the FarmCPU approach with GAPIT. Historical temperature and precipitation values were obtained as monthly averages from 1970 to 2000. Based on 26,064 high-quality SNP loci, landraces were classified into ten subpopulations exhibiting high genetic differentiation. The GEA identified 59 SNPs and nearly 89 protein-encoding genes involved in the response processes to abiotic stress. Genes related to biosynthesis and signaling are mainly mediated by auxins, abscisic acid (ABA), ethylene (ET), salicylic acid (SA), and jasmonates (JA), which are known to operate together in modulation responses to heat stress and drought in plants. In addition, we identified some proteins associated with the response and tolerance to stress by high temperatures, water deficit, and cell wall functions. The results provide candidate regions for selection aimed to improve drought and heat tolerance in bread wheat and provide insights into the genetic mechanisms involved in adaptation to extreme environments. |
| format | Journal Article |
| id | CGSpace127057 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1270572025-12-08T10:29:22Z Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) Gómez Espejo, Ana L. Sansaloni, Carolina P. Burgueño, Juan Toledo, Fernando H. Benavides-Mendoza, Adalberto Reyes Valdés, M. Humberto adaptation drought stress heat stress landraces triticum aestivum Genome–environment Associations (GEA) or Environmental Genome-Wide Association scans (EnvGWAS) have been poorly applied for studying the genomics of adaptive traits in bread wheat landraces (Triticum aestivum L.). We analyzed 990 landraces and seven climatic variables (mean temperature, maximum temperature, precipitation, precipitation seasonality, heat index of mean temperature, heat index of maximum temperature, and drought index) in GEA using the FarmCPU approach with GAPIT. Historical temperature and precipitation values were obtained as monthly averages from 1970 to 2000. Based on 26,064 high-quality SNP loci, landraces were classified into ten subpopulations exhibiting high genetic differentiation. The GEA identified 59 SNPs and nearly 89 protein-encoding genes involved in the response processes to abiotic stress. Genes related to biosynthesis and signaling are mainly mediated by auxins, abscisic acid (ABA), ethylene (ET), salicylic acid (SA), and jasmonates (JA), which are known to operate together in modulation responses to heat stress and drought in plants. In addition, we identified some proteins associated with the response and tolerance to stress by high temperatures, water deficit, and cell wall functions. The results provide candidate regions for selection aimed to improve drought and heat tolerance in bread wheat and provide insights into the genetic mechanisms involved in adaptation to extreme environments. 2022-09-01 2023-01-13T14:03:32Z 2023-01-13T14:03:32Z Journal Article https://hdl.handle.net/10568/127057 en Open Access application/pdf MDPI Gómez-Espejo, A. L., Sansaloni, C. P., Burgueño, J., Toledo, F. H., Benavides-Mendoza, A., & Reyes-Valdés, M. H. (2022). Worldwide Selection Footprints for Drought and Heat in Bread Wheat (Triticum aestivum L.). Plants, 11(17), 2289. https://doi.org/10.3390/plants11172289 |
| spellingShingle | adaptation drought stress heat stress landraces triticum aestivum Gómez Espejo, Ana L. Sansaloni, Carolina P. Burgueño, Juan Toledo, Fernando H. Benavides-Mendoza, Adalberto Reyes Valdés, M. Humberto Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title | Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title_full | Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title_fullStr | Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title_full_unstemmed | Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title_short | Worldwide selection footprints for drought and heat in bread wheat (Triticum aestivum L.) |
| title_sort | worldwide selection footprints for drought and heat in bread wheat triticum aestivum l |
| topic | adaptation drought stress heat stress landraces triticum aestivum |
| url | https://hdl.handle.net/10568/127057 |
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