Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress
Mulberry is a valuable woody plant with significant economic importance. It can be propagated through two main methods: cutting and grafting. Waterlogging can have a major impact on mulberry growth and can significantly reduce production. In this study, we examined gene expression patterns and photo...
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MDPI AG
2023-05-01
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| Online Access: | https://www.mdpi.com/2223-7747/12/11/2066 |
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| author | Yong Li Jin Huang Cui Yu Rongli Mo Zhixian Zhu Zhaoxia Dong Xingming Hu Chuxiong Zhuang Wen Deng |
| author_facet | Yong Li Jin Huang Cui Yu Rongli Mo Zhixian Zhu Zhaoxia Dong Xingming Hu Chuxiong Zhuang Wen Deng |
| author_sort | Yong Li |
| collection | DOAJ |
| description | Mulberry is a valuable woody plant with significant economic importance. It can be propagated through two main methods: cutting and grafting. Waterlogging can have a major impact on mulberry growth and can significantly reduce production. In this study, we examined gene expression patterns and photosynthetic responses in three waterlogged mulberry cultivars propagated through cutting and grafting. Compared to the control group, waterlogging treatments reduced levels of chlorophyll, soluble protein, soluble sugars, proline, and malondialdehyde (MDA). Additionally, the treatments significantly decreased the activities of ascorbate peroxidase (APX), peroxidase (POD), and catalase (CAT) in all three cultivars, except for superoxide dismutase (SOD). Waterlogging treatments also affected the rate of photosynthesis (Pn), stomatal conductance (Gs), and transpiration rate (Tr) in all three cultivars. However, no significant difference in physiological response was observed between the cutting and grafting groups. Gene expression patterns in the mulberry changed dramatically after waterlogging stress and varied between the two propagation methods. A total of 10,394 genes showed significant changes in expression levels, with the number of differentially expressed genes (DEGs) varying between comparison groups. GO and KEGG analysis revealed important DEGs, including photosynthesis-related genes that were significantly downregulated after waterlogging treatment. Notably, these genes were upregulated at day 10 in the cutting group compared to the grafting group. In particular, genes involved in carbon fixation were significantly upregulated in the cutting group. Finally, cutting propagation methods displayed better recovery capacity from waterlogging stress than grafting. This study provides valuable information for improving mulberry genetics in breeding programs. |
| first_indexed | 2024-03-11T02:59:56Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-11T02:59:56Z |
| publishDate | 2023-05-01 |
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| series | Plants |
| spelling | doaj.art-aa2d2f383697411a9ac2ce168c79e2232023-11-18T08:22:53ZengMDPI AGPlants2223-77472023-05-011211206610.3390/plants12112066Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging StressYong Li0Jin Huang1Cui Yu2Rongli Mo3Zhixian Zhu4Zhaoxia Dong5Xingming Hu6Chuxiong Zhuang7Wen Deng8Cash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaCollege of Life Sciences, South China Agricultural University, Guangzhou 510642, ChinaCash Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, ChinaMulberry is a valuable woody plant with significant economic importance. It can be propagated through two main methods: cutting and grafting. Waterlogging can have a major impact on mulberry growth and can significantly reduce production. In this study, we examined gene expression patterns and photosynthetic responses in three waterlogged mulberry cultivars propagated through cutting and grafting. Compared to the control group, waterlogging treatments reduced levels of chlorophyll, soluble protein, soluble sugars, proline, and malondialdehyde (MDA). Additionally, the treatments significantly decreased the activities of ascorbate peroxidase (APX), peroxidase (POD), and catalase (CAT) in all three cultivars, except for superoxide dismutase (SOD). Waterlogging treatments also affected the rate of photosynthesis (Pn), stomatal conductance (Gs), and transpiration rate (Tr) in all three cultivars. However, no significant difference in physiological response was observed between the cutting and grafting groups. Gene expression patterns in the mulberry changed dramatically after waterlogging stress and varied between the two propagation methods. A total of 10,394 genes showed significant changes in expression levels, with the number of differentially expressed genes (DEGs) varying between comparison groups. GO and KEGG analysis revealed important DEGs, including photosynthesis-related genes that were significantly downregulated after waterlogging treatment. Notably, these genes were upregulated at day 10 in the cutting group compared to the grafting group. In particular, genes involved in carbon fixation were significantly upregulated in the cutting group. Finally, cutting propagation methods displayed better recovery capacity from waterlogging stress than grafting. This study provides valuable information for improving mulberry genetics in breeding programs.https://www.mdpi.com/2223-7747/12/11/2066mulberrywaterloggingphotosynthesisgene regulation |
| spellingShingle | Yong Li Jin Huang Cui Yu Rongli Mo Zhixian Zhu Zhaoxia Dong Xingming Hu Chuxiong Zhuang Wen Deng Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress Plants mulberry waterlogging photosynthesis gene regulation |
| title | Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress |
| title_full | Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress |
| title_fullStr | Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress |
| title_full_unstemmed | Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress |
| title_short | Physiological and Transcriptome Analyses of Photosynthesis in Three Mulberry Cultivars within Two Propagation Methods (Cutting and Grafting) under Waterlogging Stress |
| title_sort | physiological and transcriptome analyses of photosynthesis in three mulberry cultivars within two propagation methods cutting and grafting under waterlogging stress |
| topic | mulberry waterlogging photosynthesis gene regulation |
| url | https://www.mdpi.com/2223-7747/12/11/2066 |
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