Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley
Low-temperature stress (LTS) is among the major abiotic stresses affecting the geographical distribution and productivity of the most important crops. Understanding the genetic basis of photosynthetic variation under cold stress is necessary for developing more climate-resilient barley cultivars. To...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Frontiers Media
2023
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| Online Access: | https://hdl.handle.net/10568/132670 |
| _version_ | 1855540143217180672 |
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| author | Elakhdar, Ammar J. Slask, Jan Kubo, Takahiko Hamwieh, Aladdin Hernandez Ramirez, Guillermo D. Beattie, Aaron Chichi, Ludovic J.A. Capo |
| author_browse | Chichi, Ludovic J.A. Capo D. Beattie, Aaron Elakhdar, Ammar Hamwieh, Aladdin Hernandez Ramirez, Guillermo J. Slask, Jan Kubo, Takahiko |
| author_facet | Elakhdar, Ammar J. Slask, Jan Kubo, Takahiko Hamwieh, Aladdin Hernandez Ramirez, Guillermo D. Beattie, Aaron Chichi, Ludovic J.A. Capo |
| author_sort | Elakhdar, Ammar |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Low-temperature stress (LTS) is among the major abiotic stresses affecting the geographical distribution and productivity of the most important crops. Understanding the genetic basis of photosynthetic variation under cold stress is necessary for developing more climate-resilient barley cultivars. To that end, we investigated the ability of chlorophyll fluorescence parameters (FVFM, and FVF0) to respond to changes in the maximum quantum yield of Photosystem II photochemistry as an indicator of photosynthetic energy. A panel of 96 barley spring cultivars from different breeding zones of Canada was evaluated for chlorophyll fluorescence-related traits under cold acclimation and freeze shock stresses at different times. Genome-wide association studies (GWAS) were performed using a mixed linear model (MLM). We identified three major and putative genomic regions harboring 52 significant quantitative trait nucleotides (QTNs) on chromosomes 1H, 3H, and 6H for low-temperature tolerance. Functional annotation indicated several QTNs were either within the known or close to genes that play important roles in the photosynthetic metabolites such as abscisic acid (ABA) signaling, hydrolase activity, protein kinase, and transduction of environmental signal transduction at the posttranslational modification levels. These outcomes revealed that barley plants modified their gene expression profile in response to decreasing temperatures resulting in physiological and biochemical modifications. Cold tolerance could influence a long-term adaption of barley in many parts of the world. Since the degree and frequency of LTS vary considerably among production sites. Hence, these results could shed light on potential approaches for improving barley productivity under low-temperature stress. |
| format | Journal Article |
| id | CGSpace132670 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1326702026-01-15T02:18:55Z Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley Elakhdar, Ammar J. Slask, Jan Kubo, Takahiko Hamwieh, Aladdin Hernandez Ramirez, Guillermo D. Beattie, Aaron Chichi, Ludovic J.A. Capo chlorophyll fluorescence protein kinase barley spring barley hordeum vulgare l. photosystem ii photochemistry quantitative trait nucleotides (qtns) mixed linear model (mlm) abscisic acid (aba) signaling post-transcription modification Low-temperature stress (LTS) is among the major abiotic stresses affecting the geographical distribution and productivity of the most important crops. Understanding the genetic basis of photosynthetic variation under cold stress is necessary for developing more climate-resilient barley cultivars. To that end, we investigated the ability of chlorophyll fluorescence parameters (FVFM, and FVF0) to respond to changes in the maximum quantum yield of Photosystem II photochemistry as an indicator of photosynthetic energy. A panel of 96 barley spring cultivars from different breeding zones of Canada was evaluated for chlorophyll fluorescence-related traits under cold acclimation and freeze shock stresses at different times. Genome-wide association studies (GWAS) were performed using a mixed linear model (MLM). We identified three major and putative genomic regions harboring 52 significant quantitative trait nucleotides (QTNs) on chromosomes 1H, 3H, and 6H for low-temperature tolerance. Functional annotation indicated several QTNs were either within the known or close to genes that play important roles in the photosynthetic metabolites such as abscisic acid (ABA) signaling, hydrolase activity, protein kinase, and transduction of environmental signal transduction at the posttranslational modification levels. These outcomes revealed that barley plants modified their gene expression profile in response to decreasing temperatures resulting in physiological and biochemical modifications. Cold tolerance could influence a long-term adaption of barley in many parts of the world. Since the degree and frequency of LTS vary considerably among production sites. Hence, these results could shed light on potential approaches for improving barley productivity under low-temperature stress. 2023-06-03 2023-11-02T13:26:46Z 2023-11-02T13:26:46Z Journal Article https://hdl.handle.net/10568/132670 en Open Access application/pdf Frontiers Media Ammar Elakhdar, Jan J. Slask, Takahiko Kubo, Aladdin Hamwieh, Guillermo Hernandez Ramirez, Aaron D. Beattie, Ludovic J. A. Capo Chichi. (3/6/2023). Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley. Frontiers in Plant Science, 14. |
| spellingShingle | chlorophyll fluorescence protein kinase barley spring barley hordeum vulgare l. photosystem ii photochemistry quantitative trait nucleotides (qtns) mixed linear model (mlm) abscisic acid (aba) signaling post-transcription modification Elakhdar, Ammar J. Slask, Jan Kubo, Takahiko Hamwieh, Aladdin Hernandez Ramirez, Guillermo D. Beattie, Aaron Chichi, Ludovic J.A. Capo Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title | Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title_full | Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title_fullStr | Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title_full_unstemmed | Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title_short | Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley |
| title_sort | genome wide association analysis provides insights into the genetic basis of photosynthetic responses to low temperature stress in spring barley |
| topic | chlorophyll fluorescence protein kinase barley spring barley hordeum vulgare l. photosystem ii photochemistry quantitative trait nucleotides (qtns) mixed linear model (mlm) abscisic acid (aba) signaling post-transcription modification |
| url | https://hdl.handle.net/10568/132670 |
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