The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus
Pepper mild mottle virus (PMMoV), a member of the genus Tobamovirus, causes severe damage on pepper worldwide. Despite its impact, the pathogenicity mechanisms of PMMoV and the pepper plant’s response to infection remain poorly understood. Here, we compared the transcriptomic changes in a susceptibl...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1533151/full |
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| author | Weihong Lin Shugen Zhang Hao Zhang Xiaomei Deng Tong Jiang Xifeng Chen Laihua Dong Qin Yan Lianyi Zang Yongping Xing Zhenquan Wang Qin Zhang Kaitong Du Huolin Shen Junmin Zhang Tao Zhou |
| author_facet | Weihong Lin Shugen Zhang Hao Zhang Xiaomei Deng Tong Jiang Xifeng Chen Laihua Dong Qin Yan Lianyi Zang Yongping Xing Zhenquan Wang Qin Zhang Kaitong Du Huolin Shen Junmin Zhang Tao Zhou |
| author_sort | Weihong Lin |
| collection | DOAJ |
| description | Pepper mild mottle virus (PMMoV), a member of the genus Tobamovirus, causes severe damage on pepper worldwide. Despite its impact, the pathogenicity mechanisms of PMMoV and the pepper plant’s response to infection remain poorly understood. Here, we compared the transcriptomic changes in a susceptible pepper inbred line 21C241 with a resistant inbred line 21C385 seedlings, following systemic PMMoV infection using RNA sequencing. Our results revealed that PMMoV induced more pronounced mosaic symptoms and higher viral accumulation levels in the susceptible line 21C241 compared to the resistant line 21C385. We identified 462 and 401 differentially expressed genes (DEGs) in the systemically-infected leaves of the susceptible and resistant lines, respectively, when compared to their healthy counterparts. The majority of these DEGs were involved in photosynthesis and the biosynthesis of secondary metabolites, with 28 DEGs exhibiting distinct expression patterns between the two lines. Notably, the expression level of the chlorophyll a-b binding protein 13 (CAB13) was significantly up-regulated in resistant line 21C385 following PMMoV infection. Functional analysis through silencing of CAB13 in pepper and Nicotiana benthamiana demonstrated a reduction in PMMoV accumulation, suggesting that CAB13 plays a positive role in facilitating PMMoV infection in pepper plants. Taken together, our findings highlight the distinct gene expression profiles between susceptible and resistant pepper lines in response to PMMoV infection and confirm the proviral role of CAB13. This study provides valuable insights into the molecular mechanisms underlying resistance and susceptibility in pepper plants and may inform future strategies for disease management. |
| format | Article |
| id | doaj-art-1aaa761851224a47802ddb90219b0b1e |
| institution | Kabale University |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj-art-1aaa761851224a47802ddb90219b0b1e2025-01-27T06:41:03ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-01-011610.3389/fpls.2025.15331511533151The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virusWeihong Lin0Shugen Zhang1Hao Zhang2Xiaomei Deng3Tong Jiang4Xifeng Chen5Laihua Dong6Qin Yan7Lianyi Zang8Yongping Xing9Zhenquan Wang10Qin Zhang11Kaitong Du12Huolin Shen13Junmin Zhang14Tao Zhou15Key Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaCollege of Agriculture and Biology, Liaocheng University, Liaocheng, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaCollege of Horticulture, China Agricultural University, Beijing, ChinaLaboratory of Plant Tissue Culture Technology of Haidian District, Beijing, ChinaKey Laboratory for Pest Monitoring and Green Management of Ministry of Agriculture and Rural Affairs, and Department of Plant Pathology, China Agricultural University, Beijing, ChinaPepper mild mottle virus (PMMoV), a member of the genus Tobamovirus, causes severe damage on pepper worldwide. Despite its impact, the pathogenicity mechanisms of PMMoV and the pepper plant’s response to infection remain poorly understood. Here, we compared the transcriptomic changes in a susceptible pepper inbred line 21C241 with a resistant inbred line 21C385 seedlings, following systemic PMMoV infection using RNA sequencing. Our results revealed that PMMoV induced more pronounced mosaic symptoms and higher viral accumulation levels in the susceptible line 21C241 compared to the resistant line 21C385. We identified 462 and 401 differentially expressed genes (DEGs) in the systemically-infected leaves of the susceptible and resistant lines, respectively, when compared to their healthy counterparts. The majority of these DEGs were involved in photosynthesis and the biosynthesis of secondary metabolites, with 28 DEGs exhibiting distinct expression patterns between the two lines. Notably, the expression level of the chlorophyll a-b binding protein 13 (CAB13) was significantly up-regulated in resistant line 21C385 following PMMoV infection. Functional analysis through silencing of CAB13 in pepper and Nicotiana benthamiana demonstrated a reduction in PMMoV accumulation, suggesting that CAB13 plays a positive role in facilitating PMMoV infection in pepper plants. Taken together, our findings highlight the distinct gene expression profiles between susceptible and resistant pepper lines in response to PMMoV infection and confirm the proviral role of CAB13. This study provides valuable insights into the molecular mechanisms underlying resistance and susceptibility in pepper plants and may inform future strategies for disease management.https://www.frontiersin.org/articles/10.3389/fpls.2025.1533151/fulldifferentially expressed genetranscriptomic analysischlorophyll ab binding protein 13virus-induced gene silencingphotosynthesisflavonoid biosynthesis |
| spellingShingle | Weihong Lin Shugen Zhang Hao Zhang Xiaomei Deng Tong Jiang Xifeng Chen Laihua Dong Qin Yan Lianyi Zang Yongping Xing Zhenquan Wang Qin Zhang Kaitong Du Huolin Shen Junmin Zhang Tao Zhou The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus Frontiers in Plant Science differentially expressed gene transcriptomic analysis chlorophyll ab binding protein 13 virus-induced gene silencing photosynthesis flavonoid biosynthesis |
| title | The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus |
| title_full | The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus |
| title_fullStr | The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus |
| title_full_unstemmed | The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus |
| title_short | The transcriptional analysis of pepper shed light on a proviral role of light-harvesting chlorophyll a/b binding protein 13 during infection of pepper mild mottle virus |
| title_sort | transcriptional analysis of pepper shed light on a proviral role of light harvesting chlorophyll a b binding protein 13 during infection of pepper mild mottle virus |
| topic | differentially expressed gene transcriptomic analysis chlorophyll ab binding protein 13 virus-induced gene silencing photosynthesis flavonoid biosynthesis |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1533151/full |
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