Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.)
The Sugars Will Eventually be Exported Transporter (SWEET) gene family, identified as sugar transporters, has been demonstrated to play key roles in phloem loading, grain filling, pollen nutrition, and plant-pathogen interactions. To date, the study of SWEET genes in response to abiotic stress is ve...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311919627619 |
| _version_ | 1818835571465781248 |
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| author | Jin-xia QIN Yu-jie JIANG Yun-ze LU Peng ZHAO Bing-jin WU Hong-xia LI Yu WANG Sheng-bao XU Qi-xin SUN Zhen-shan LIU |
| author_facet | Jin-xia QIN Yu-jie JIANG Yun-ze LU Peng ZHAO Bing-jin WU Hong-xia LI Yu WANG Sheng-bao XU Qi-xin SUN Zhen-shan LIU |
| author_sort | Jin-xia QIN |
| collection | DOAJ |
| description | The Sugars Will Eventually be Exported Transporter (SWEET) gene family, identified as sugar transporters, has been demonstrated to play key roles in phloem loading, grain filling, pollen nutrition, and plant-pathogen interactions. To date, the study of SWEET genes in response to abiotic stress is very limited. In this study, we performed a genome-wide identification of the SWEET gene family in wheat and examined their expression profiles under mutiple abiotic stresses. We identified a total of 105 wheat SWEET genes, and phylogenic analysis revealed that they fall into five clades, with clade V specific to wheat and its closely related species. Of the 105 wheat SWEET genes, 59% exhibited significant expression changes after stress treatments, including drought, heat, heat combined with drought, and salt stresses, and more up-regulated genes were found in response to drought and salt stresses. Further hierarchical clustering analysis revealed that SWEET genes exhibited differential expression patterns in response to different stress treatments or in different wheat cultivars. Moreover, different phylogenetic clades also showed distinct response to abiotic stress treatments. Finally, we found that homoeologous SWEET genes from different wheat subgenomes exhibited differential expression patterns in response to different abiotic stress treatments. The genome-wide analysis revealed the great expansion of SWEET gene family in wheat and their wide participation in abiotic stress response. The expression partitioning of SWEET homoeologs under abiotic stress conditions may confer greater flexibility for hexaploid wheat to adapt to ever changing environments. |
| first_indexed | 2024-12-19T02:52:50Z |
| format | Article |
| id | doaj.art-b1ef4d03ab41427a951bac03110fb3c2 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-19T02:52:50Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-b1ef4d03ab41427a951bac03110fb3c22022-12-21T20:38:33ZengElsevierJournal of Integrative Agriculture2095-31192020-07-0119717041720Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.)Jin-xia QIN0Yu-jie JIANG1Yun-ze LU2Peng ZHAO3Bing-jin WU4Hong-xia LI5Yu WANG6Sheng-bao XU7Qi-xin SUN8Zhen-shan LIU9State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. China; QIN Jin-xiaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. China; College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056021, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. ChinaDepartment of Plant Genetics & Breeding, China Agricultural University, Beijing 100193, P.R. ChinaState Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, P.R. China; Correspondence LIU Zhen-shanThe Sugars Will Eventually be Exported Transporter (SWEET) gene family, identified as sugar transporters, has been demonstrated to play key roles in phloem loading, grain filling, pollen nutrition, and plant-pathogen interactions. To date, the study of SWEET genes in response to abiotic stress is very limited. In this study, we performed a genome-wide identification of the SWEET gene family in wheat and examined their expression profiles under mutiple abiotic stresses. We identified a total of 105 wheat SWEET genes, and phylogenic analysis revealed that they fall into five clades, with clade V specific to wheat and its closely related species. Of the 105 wheat SWEET genes, 59% exhibited significant expression changes after stress treatments, including drought, heat, heat combined with drought, and salt stresses, and more up-regulated genes were found in response to drought and salt stresses. Further hierarchical clustering analysis revealed that SWEET genes exhibited differential expression patterns in response to different stress treatments or in different wheat cultivars. Moreover, different phylogenetic clades also showed distinct response to abiotic stress treatments. Finally, we found that homoeologous SWEET genes from different wheat subgenomes exhibited differential expression patterns in response to different abiotic stress treatments. The genome-wide analysis revealed the great expansion of SWEET gene family in wheat and their wide participation in abiotic stress response. The expression partitioning of SWEET homoeologs under abiotic stress conditions may confer greater flexibility for hexaploid wheat to adapt to ever changing environments.http://www.sciencedirect.com/science/article/pii/S2095311919627619wheatsugar transporterabiotic stresshomoeologous geneexpression partitioning |
| spellingShingle | Jin-xia QIN Yu-jie JIANG Yun-ze LU Peng ZHAO Bing-jin WU Hong-xia LI Yu WANG Sheng-bao XU Qi-xin SUN Zhen-shan LIU Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) Journal of Integrative Agriculture wheat sugar transporter abiotic stress homoeologous gene expression partitioning |
| title | Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) |
| title_full | Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) |
| title_fullStr | Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) |
| title_full_unstemmed | Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) |
| title_short | Genome-wide identification and transcriptome profiling reveal great expansion of SWEET gene family and their wide-spread responses to abiotic stress in wheat (Triticum aestivum L.) |
| title_sort | genome wide identification and transcriptome profiling reveal great expansion of sweet gene family and their wide spread responses to abiotic stress in wheat triticum aestivum l |
| topic | wheat sugar transporter abiotic stress homoeologous gene expression partitioning |
| url | http://www.sciencedirect.com/science/article/pii/S2095311919627619 |
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