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Guo C, Zhu L, Sun H, Han Q, Wang S, Zhu J, Zhang Y, Zhang K, Bai Z, Li A, Liu L, Li C. Evaluation of drought-tolerant varieties based on root system architecture in cotton (Gossypium hirsutum L.). BMC PLANT BIOLOGY 2024; 24:127. [PMID: 38383299 DOI: 10.1186/s12870-024-04799-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/05/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Root system architecture (RSA) exhibits significant genetic variability and is closely associated with drought tolerance. However, the evaluation of drought-tolerant cotton cultivars based on RSA in the field conditions is still underexplored. RESULTS So, this study conducted a comprehensive analysis of drought tolerance based on physiological and morphological traits (i.e., aboveground and RSA, and yield) within a rain-out shelter, with two water treatments: well-watered (75 ± 5% soil relative water content) and drought stress (50 ± 5% soil relative water content). The results showed that principal component analysis identified six principal components, including highlighting the importance of root traits and canopy parameters in influencing drought tolerance. Moreover, the systematic cluster analysis was used to classify 80 cultivars into 5 categories, including drought-tolerant cultivars, relatively drought-tolerant cultivars, intermediate cultivars, relatively drought-sensitive cultivars, and drought-sensitive cultivars. Further validation of the drought tolerance index showed that the yield drought tolerance index and biomass drought tolerance index of the drought-tolerant cultivars were 8.97 and 5.05 times higher than those of the drought-sensitive cultivars, respectively. CONCLUSIONS The RSA of drought-tolerant cultivars was characterised by a significant increase in average length-all lateral roots, a significant decrease in average lateral root emergence angle and a moderate root/shoot ratio. In contrast, the drought-sensitive cultivars showed a significant decrease in average length-all lateral roots and a significant increase in both average lateral root emergence angle and root/shoot ratio. It is therefore more comprehensive and accurate to assess field crop drought tolerance by considering root performance.
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Affiliation(s)
- Congcong Guo
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Lingxiao Zhu
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Hongchun Sun
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Qiucheng Han
- Handan Academy of Agricultural Sciences, Handan, 056001, China
| | - Shijie Wang
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050051, China
| | - Jijie Zhu
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050051, China
| | - Yongjiang Zhang
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Ke Zhang
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Zhiying Bai
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Anchang Li
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Liantao Liu
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China.
| | - Cundong Li
- State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province/College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071001, China.
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Liang Y, Xie W, Yang C, Yu B, Qin Q, Wang Y, Gan Y, Liu R, Qiu Z, Cao B, Yan S. A quick and effective method for thermostability differentiation in cucumber (Cucumis sativus L.). PHYSIOLOGIA PLANTARUM 2024; 176:e14215. [PMID: 38366670 DOI: 10.1111/ppl.14215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/21/2024] [Indexed: 02/18/2024]
Abstract
High temperature affects the growth and production of cucumber. Selecting thermotolerant cucumber cultivars is conducive to coping with high temperatures and improving production. Thus, a quick and effective method for screening thermotolerant cucumber cultivars is needed. In this study, four cucumber cultivars were used to identify heat resistance indexes. The morphological, physiological and biochemical indexes were measured. When exposed to high temperatures, thermotolerant cucumber had a more stable photosystem, membrane, and oxidation-reduction systems. The impact of high temperatures on plants is multifaceted, and the accurate discrimination of heat resistance cannot be achieved solely based on a single or multiple indicators. Therefore, principal component analysis (PCA) was employed to comprehensively evaluate the heat resistance of cucumber plants. The results showed that the heat resistance obtained by PCA was significantly correlated with the heat injury index. In addition, the stepwise regression equation identified two heat-related indices, hydrogen peroxide content (H2 O2 ) and photosynthetic operating efficiency (Fq'/Fm'), and they can quickly distinguish the heat resistance of the other 8 cucumber cultivars. These results will help to accelerate the selection of thermotolerant resources and assist in cucumber breeding.
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Affiliation(s)
- Yonggui Liang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Weiwei Xie
- China Electronic Product Reliability and Environmental Testing Research Institute (CEPREI), China
| | - Chenyu Yang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Bingwei Yu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
- HenryFok School of Biology and Agriculture, Shaoguan University, Shaoguan, China
| | - Qiteng Qin
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Yixi Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Yuwei Gan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Renjian Liu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Zhengkun Qiu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Bihao Cao
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Shuangshuang Yan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou, China
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3
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Wang GY, Ahmad S, Wang Y, Wang BW, Huang JH, Jahan MS, Zhou XB, Shi CQ. Multivariate analysis compares and evaluates drought and flooding tolerances of maize germplasm. PLANT PHYSIOLOGY 2023; 193:339-355. [PMID: 37249039 DOI: 10.1093/plphys/kiad317] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/25/2023] [Accepted: 05/08/2023] [Indexed: 05/31/2023]
Abstract
Drought and flooding are the two most important environmental factors limiting maize (Zea mays L.) production globally. This study aimed to investigate the physiological mechanisms and accurate evaluation indicators and methods of maize germplasm involved in drought and flooding stresses. The twice replicated pot experiments with 60 varieties, combined with the field validation experiment with 3 varieties, were conducted under well-watered, drought, and flooding conditions. Most varieties exhibited stronger tolerance to drought than flooding due to higher antioxidant enzyme activities, osmotic adjustment substances, and lower reactive oxygen species. In contrast, flooding stress resulted in higher levels of reactive oxygen species (particularly O2-), ascorbate peroxidase, catalase, peroxidase, and soluble sugars but lower levels of superoxide dismutase, proline, and soluble protein compared with well-watered conditions. Superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, proline, soluble sugars, and protein contents, in addition to plant height, leaf area/plant, and stem diameter, were accurate and representative indicators for evaluating maize tolerance to drought and flooding stresses and could determine a relatively high mean forecast accuracy of 100.0% for the comprehensive evaluation value. A total of 4 principal components were extracted, in which different principal components played a vital role in resisting different water stresses. Finally, the accuracy of the 3 varieties screened by multivariate analysis was verified in the field. This study provides insights into the different physiological mechanisms and accurate evaluation methods of maize germplasm involved in drought and flooding stresses, which could be valuable for further research and breeding.
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Affiliation(s)
- Guo Yun Wang
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Shakeel Ahmad
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Yong Wang
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Bing Wei Wang
- Maize Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning 530007, China
| | - Jing Hua Huang
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Mohammad Shah Jahan
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Xun Bo Zhou
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning 530004, China
| | - Cheng Qiao Shi
- Maize Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning 530007, China
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Rasouli F, Amini T, Skrovankova S, Asadi M, Hassanpouraghdam MB, Ercisli S, Buckova M, Mrazkova M, Mlcek J. Influence of drought stress and mycorrhizal ( Funneliformis mosseae) symbiosis on growth parameters, chlorophyll fluorescence, antioxidant activity, and essential oil composition of summer savory ( Satureja hortensis L.) plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1151467. [PMID: 37342133 PMCID: PMC10278574 DOI: 10.3389/fpls.2023.1151467] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/12/2023] [Indexed: 06/22/2023]
Abstract
Introduction Drought stress unfavorably influences the growth and physiological traits of plants in the arid and semi-arid regions of the world. This study aimed to determine the effects of arbuscular mycorrhiza fungi (AMF; Funneliformis mosseae) inoculation on the physiological and biochemical responses of summer savory (Satureja hortensis L.) under different irrigation regimes. Methods The first factor was different irrigation regimes, including no drought stress (100% field capacity; FC), moderate drought stress (60% FC), and severe drought stress (30% FC); the second factor included the plants without AMF (AMF0) and with AMF inoculation (AMF1). Results The results showed that better values, higher plant height, shoot mass (fresh and dry weight), relative water content (RWC), membrane stability index (MSI), photosynthesis pigments, Fv, Fm, Fv/Fm, and total soluble proteins were obtained in the plants inoculated with AMF. The highest values were obtained for plants with no drought stress, then the plants subjected to AMF1 under 60% FC, and the lowest ones for plants under 30% FC without AMF inoculation. Thus, these properties are reduced under moderate and severe drought stress. At the same time, the utmost activity of superoxide dismutase (SOD), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), and the highest malondialdehyde (MDA), H2O2, proline, and antioxidant activity (TAA) were achieved for 30% FC + AMF0. It was also found that AMF inoculation improved essential oil (EO) composition, also as EO obtained from plants under drought stress. Carvacrol (50.84-60.03%) was the dominant component in EO; γ-terpinene (19.03-27.33%), p-cymene, α-terpinene, and myrcene, were recognized as other important components in EO. The higher carvacrol and γ-terpinene contents were obtained from summer savory plants with AMF inoculation and the lowest for plants without AMF and under 30% FC. Conclusion According to the present findings, using AMF inoculation could be a sustainable and eco-friendly approach to improve physiological and biochemical characteristics and the essential oil quality of summer savory plants under water shortage conditions.
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Affiliation(s)
- Farzad Rasouli
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Trifa Amini
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Sona Skrovankova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Zlin, Czechia
| | - Mohammad Asadi
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | | | - Sezai Ercisli
- Department of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum, Türkiye
- HGF Agro, Ata Teknokent, Erzurum, Türkiye
| | - Martina Buckova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Zlin, Czechia
| | - Martina Mrazkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Zlin, Czechia
| | - Jiri Mlcek
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Zlin, Czechia
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5
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Wang J, Zhang X, Han Z, Feng H, Wang Y, Kang J, Han X, Wang L, Wang C, Li H, Ma G. Analysis of Physiological Indicators Associated with Drought Tolerance in Wheat under Drought and Re-Watering Conditions. Antioxidants (Basel) 2022; 11:2266. [PMID: 36421452 PMCID: PMC9687282 DOI: 10.3390/antiox11112266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/01/2022] [Accepted: 11/14/2022] [Indexed: 10/29/2023] Open
Abstract
Wheat (Triticum aestivum L.) production is severely threatened by an increase in the frequency of drought events. It is crucial to determine stable and effective morphological, physiological, and associated oxidative stress indicators, to evaluate the drought tolerance of wheat for breeding and cultivation. Therefore, the cultivars Luohan 22 (LH 22, drought-tolerant) and Zhengmai 366 (ZM 366, drought-sensitive) were used as experimental materials to analyze the changes in 12 physiological and biochemical indicators, as well as the yield, when the stress was prolonged to different times. Re-watering after 6 days of drought can effectively alleviate the associated oxidative stress of drought to wheat. The physiological responses of plants were reversible when they were re-watered in the range of 6 to 12 days after drought. The degree of recovery of LH 22 was higher than that of ZM 366. Afterwards, seven indicators, including stomatal conductance, proline, malondialdehyde, soluble sugar, hexokinase, glucose, and the non-photochemical quenching parameter, were screened out to characterize tolerance of wheat to drought using the multivariate statistical analytical method. This study further investigated the method of evaluating and indexing tolerance of wheat to drought, from the physiological and biochemical levels. This study can provide a theoretical basis and reference for the selection of wheat cultivars to breed and cultivate against drought stress.
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Affiliation(s)
- Jiarui Wang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450046, China
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaoyan Zhang
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhidong Han
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Haoxiang Feng
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Yangyang Wang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450046, China
| | - Juan Kang
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaojie Han
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Lifang Wang
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
- National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China
- Henan Technology Innovation Center of Wheat, Henan Agricultural University, Zhengzhou 450046, China
| | - Chenyang Wang
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450046, China
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
- National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China
- Henan Technology Innovation Center of Wheat, Henan Agricultural University, Zhengzhou 450046, China
| | - Hua Li
- College of Life Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Geng Ma
- College of Agronomy & State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046, China
- National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China
- Henan Technology Innovation Center of Wheat, Henan Agricultural University, Zhengzhou 450046, China
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6
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Yan Q, Li X, Xiao X, Chen J, Liu J, Lin C, Guan R, Wang D. Arbuscular mycorrhizal fungi improve the growth and drought tolerance of Cinnamomum migao by enhancing physio-biochemical responses. Ecol Evol 2022; 12:e9091. [PMID: 35845374 PMCID: PMC9273509 DOI: 10.1002/ece3.9091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 05/30/2022] [Accepted: 06/16/2022] [Indexed: 11/09/2022] Open
Abstract
Drought is the main limiting factor for plant growth in karst areas with a fragile ecological environment. Cinnamomum migao H.W. Li is an endemic medicinal woody plant present in the karst areas of southwestern China, and it is endangered due to poor drought tolerance. Arbuscular mycorrhizal fungi (AMF) are known to enhance the drought tolerance of plants. However, few studies have examined the contribution of AMF in improving the drought tolerance of C. migao seedlings. Therefore, we conducted a series of experiments to determine whether a single inoculation and coinoculation of AMF (Claroideoglomus lamellosum and Claroideoglomus etunicatum) enhanced the drought tolerance of C. migao. Furthermore, we compared the effects of single inoculation and coinoculation with different inoculum sizes (20, 40, 60, and 100 g; four replicates per treatment) on mycorrhizal colonization rate, plant growth, photosynthetic parameters, antioxidant enzyme activity, and malondialdehyde (MDA) and osmoregulatory substance contents. The results showed that compared with nonmycorrhizal plants, AMF colonization significantly improved plant growing status; net photosynthetic rate; superoxide dismutase, catalase, and peroxidase activities; and soluble sugar, soluble protein, and proline contents. Furthermore, AMF colonization increased relative water content and reduced MDA content in cells. These combined cumulative effects of AMF symbiosis ultimately enhanced the drought tolerance of seedlings and were closely related to the inoculum size. With an increase in inoculum size, the growth rate and drought tolerance of plants first increased and then decreased. The damage caused by drought stress could be reduced by inoculating 40-60 g of AMF, and the effect of coinoculation was significantly better than that of single inoculation at 60 g of AMF, while the effect was opposite at 40 g of AMF. Additionally, the interaction between AMF and inoculum sizes had a significant effect on drought tolerance. In conclusion, the inoculation of the AMF (Cl. lamellosum and Cl. etunicatum) improved photosynthesis, activated antioxidant enzymes, regulated cell osmotic state, and enhanced the drought tolerance of C. migao, enabling its growth in fragile ecological environments.
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Affiliation(s)
- Qiuxiao Yan
- Department of Ecology, College of Forestry Guizhou University Guiyang China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang China.,State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Guiyang China
| | - Xiangying Li
- Institute of New Rural Development Guizhou University Guiyang China
| | - Xuefeng Xiao
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Jingzhong Chen
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Jiming Liu
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Changhu Lin
- Department of Labor Health and Environmental Hygiene, School of Public Health Guizhou Medical University Guiyang China
| | - Ruiting Guan
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Daoping Wang
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang China.,State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Guiyang China
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Yadav R, Kalia S, Rangan P, Pradheep K, Rao GP, Kaur V, Pandey R, Rai V, Vasimalla CC, Langyan S, Sharma S, Thangavel B, Rana VS, Vishwakarma H, Shah A, Saxena A, Kumar A, Singh K, Siddique KHM. Current Research Trends and Prospects for Yield and Quality Improvement in Sesame, an Important Oilseed Crop. FRONTIERS IN PLANT SCIENCE 2022; 13:863521. [PMID: 35599863 PMCID: PMC9120847 DOI: 10.3389/fpls.2022.863521] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/16/2022] [Indexed: 06/04/2023]
Abstract
Climate change is shifting agricultural production, which could impact the economic and cultural contexts of the oilseed industry, including sesame. Environmental threats (biotic and abiotic stresses) affect sesame production and thus yield (especially oil content). However, few studies have investigated the genetic enhancement, quality improvement, or the underlying mechanisms of stress tolerance in sesame. This study reveals the challenges faced by farmers/researchers growing sesame crops and the potential genetic and genomic resources for addressing the threats, including: (1) developing sesame varieties that tolerate phyllody, root rot disease, and waterlogging; (2) investigating beneficial agro-morphological traits, such as determinate growth, prostrate habit, and delayed response to seed shattering; (3) using wild relatives of sesame for wide hybridization; and (4) advancing existing strategies to maintain sesame production under changing climatic conditions. Future research programs need to add technologies and develop the best research strategies for economic and sustainable development.
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Affiliation(s)
- Rashmi Yadav
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Sanjay Kalia
- Department of Biotechnology, Ministry of Science and Technology, Government of India, New Delhi, India
| | - Parimalan Rangan
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - K. Pradheep
- National Bureau of Plant Genetic Resources, Thrissur, India
| | - Govind Pratap Rao
- Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Vikender Kaur
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Renu Pandey
- Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Vandna Rai
- National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | | | - Sapna Langyan
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Sanjula Sharma
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Punjab, India
| | - Boopathi Thangavel
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | | | | | - Anshuman Shah
- National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Abhishek Saxena
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Ashok Kumar
- National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Kuldeep Singh
- International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, India
| | - Kadambot H. M. Siddique
- The UWA School of Agriculture and Environment, The UWA Institute of Agriculture, The University of Western Australia (UWA), Perth, WA, Australia
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8
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Fang S, Yang H, Wei G, Shen T, Wan Z, Wang M, Wang X, Wu Z. Potassium application enhances drought tolerance in sesame by mitigating oxidative damage and regulating osmotic adjustment. FRONTIERS IN PLANT SCIENCE 2022; 13:1096606. [PMID: 36578346 PMCID: PMC9791050 DOI: 10.3389/fpls.2022.1096606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 11/21/2022] [Indexed: 05/10/2023]
Abstract
Potassium (K) is known for alleviating the negative effects of abiotic stresses on plants. To explore the functions of K in controlling reactive oxygen species (ROS), antioxidant activities, and osmoregulation in sesame under drought stress, a pot experiment was conducted with three K levels (0, 60, and 120 kg ha-1, recorded as K0, K1, and K2, respectively) and exposed to well-watered (WW, 75% ± 5% soil relative water content) and drought-stressed (DS, 50% ± 5% soil relative water content) conditions. The results showed that DS stimulated the production of ROS such as increased hydrogen peroxide (H2O2), leading to lipid peroxidation as characterized by higher malondialdehyde (MDA) and, consequently, resulting in the decline in relative water content (RWC) and photosynthetic pigments as compared with WW plants. These adverse effects were exacerbated when drought stress was prolonged. Concurrently, K application alleviated the magnitude of decline in the RWC, chlorophyll a, and chlorophyll b, and plants applied with K exhibited superior growth, with the optimal mitigation observed under K2 treatment. Additionally, DS plants treated with K exhibited lower lipid peroxidation, higher antioxidant activities, and increased osmotic solute accumulation in comparison with plants under K deficiency, which suggested that exogenous K application mitigated the oxidative damages and this was more prominent under K2 treatment. Noteworthily, proline and soluble protein, respectively, dominated in the osmotic regulation at 3 and 6 days of drought stress according to the analysis of the quantitative comparison among different osmotically active solutes. Based on the correlation of the aforementioned traits and the analysis of variance on the interaction effects of drought stress and potassium, we propose that superoxide dismutase (SOD), glutathione reductase (GR), and MDA could be critical indicators in balancing ROS detoxification and reproduction. In summary, our studies suggest that optimized K application keeps a balance between the production of antioxidants and ROS and simultaneously affects osmoregulation to alleviate the damage from drought stress.
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Affiliation(s)
- Sheng Fang
- *Correspondence: Sheng Fang, ; Ziming Wu,
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- *Correspondence: Sheng Fang, ; Ziming Wu,
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9
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Kouighat M, Hanine H, El Fechtali M, Nabloussi A. First Report of Sesame Mutants Tolerant to Severe Drought Stress during Germination and Early Seedling Growth Stages. PLANTS 2021; 10:plants10061166. [PMID: 34201345 PMCID: PMC8227276 DOI: 10.3390/plants10061166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/31/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
In the context of climate change and water scarcity, there is a need to develop and use drought-tolerant sesame cultivars. This study was conducted to evaluate the response of 13 sesame genotypes, including 11 mutants and their wild-types, to drought during germination and early seedling growth. Moderate and severe drought stress was simulated by applying polyethylene glycol (PEG) at two osmotic potentials, −0.6 MPa and −1.2 MPa, respectively, on seeds of two successive mutant generations, M2 and M3. The parameters measured or calculated were germination percentage (GP), germination rate (GR), mean germination time (MGT), root length (RL), shoot length (SL), root to shoot ratio (RSR), and the seedling vigor index (SVI). Results showed the significant effect of genotype, drought, and drought × genotype interaction on all parameters investigated. Under severe drought, seeds of seven genotypes, including wild types, were not able to germinate. There was a drastic decline of all parameters for the rest, except MGT and RSR, which markedly increased. Interestingly, two mutants, “ML2-5” and “ML2-10”, were identified as the most tolerant to severe drought and the most stable over both generations. The present work is the first report of sesame germplasm with such a high level of tolerance to drought during germination and early seedling growth stages.
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Affiliation(s)
- Mohamed Kouighat
- Research Unit of Plant Breeding and Plant Genetic Resources Conservation, National Institute of Agricultural Research, Regional Agricultural Research Center of Meknes, Meknes 50000, Morocco; (M.K.); (M.E.F.)
- Laboratory of Bioprocess and Bio-Interfaces, Faculty of Science and Technology, University Moulay Slimane, Béni-Mellal 23000, Morocco;
| | - Hafida Hanine
- Laboratory of Bioprocess and Bio-Interfaces, Faculty of Science and Technology, University Moulay Slimane, Béni-Mellal 23000, Morocco;
| | - Mohamed El Fechtali
- Research Unit of Plant Breeding and Plant Genetic Resources Conservation, National Institute of Agricultural Research, Regional Agricultural Research Center of Meknes, Meknes 50000, Morocco; (M.K.); (M.E.F.)
| | - Abdelghani Nabloussi
- Research Unit of Plant Breeding and Plant Genetic Resources Conservation, National Institute of Agricultural Research, Regional Agricultural Research Center of Meknes, Meknes 50000, Morocco; (M.K.); (M.E.F.)
- Correspondence:
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10
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Dossa K, Zhou R, Li D, Liu A, Qin L, Mmadi MA, Su R, Zhang Y, Wang J, Gao Y, Zhang X, You J. A novel motif in the 5'-UTR of an orphan gene 'Big Root Biomass' modulates root biomass in sesame. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1065-1079. [PMID: 33369837 PMCID: PMC8131042 DOI: 10.1111/pbi.13531] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/30/2020] [Accepted: 12/08/2020] [Indexed: 05/06/2023]
Abstract
Developing crops with improved root system is crucial in current global warming scenario. Underexploited crops are valuable reservoirs of unique genes that can be harnessed for the improvement of major crops. In this study, we performed genome-wide association studies on seven root traits in sesame (Sesamum indicum L.) and uncovered 409 significant signals, 19 quantitative trait loci containing 32 candidate genes. A peak SNP significantly associated with root number and root dry weight traits was located in the promoter of the gene named 'Big Root Biomass' (BRB), which was subsequently validated in a bi-parental population. BRB has no functional annotation and is restricted to the Lamiales order. We detected the presence of a novel motif 'AACACACAC' located in the 5'-UTR of BRB in single and duplicated copy in accessions with high and small root biomass, respectively. A strong expression level of BRB was negatively correlated with high root biomass, and this was attributed to the gene SiMYB181 which represses the activity of BRB by binding specifically to the single motif but not to the duplicated one. Curiously, the allele that enhanced BRB expression has been intensively selected by modern breeding. Overexpression of BRB in Arabidopsis modulates auxin pathway leading to reduced root biomass, improved yield parameters under normal growth conditions and increased drought stress sensitivity. Overall, BRB represents a solid gene model for improving the performance of sesame and other crops.
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Affiliation(s)
- Komivi Dossa
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
- Laboratory of Genetics, Horticulture and Seed SciencesFaculty of Agronomic SciencesUniversity of Abomey‐CalaviCotonouBenin
| | - Rong Zhou
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Donghua Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Aili Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Lu Qin
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Marie A. Mmadi
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Ruqi Su
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Yujuan Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
- Cotton Research CenterShandong Academy of Agricultural SciencesJinanChina
| | - Jianqiang Wang
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Yuan Gao
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Xiurong Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
| | - Jun You
- Oil Crops Research Institute of the Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhanChina
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Dossa K, Mmadi MA, Zhou R, Liu A, Yang Y, Diouf D, You J, Zhang X. Ectopic expression of the sesame MYB transcription factor SiMYB305 promotes root growth and modulates ABA-mediated tolerance to drought and salt stresses in Arabidopsis. AOB PLANTS 2020; 12:plz081. [PMID: 32099638 PMCID: PMC7019004 DOI: 10.1093/aobpla/plz081] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/21/2019] [Indexed: 05/02/2023]
Abstract
An increasing number of candidate genes related to abiotic stress tolerance are being discovered and proposed to improve the existing cultivars of the high oil-bearing crop sesame (Sesamum indicum L.). However, the in planta functional validation of these genes is remarkably lacking. In this study, we cloned a novel sesame R2-R3 MYB gene SiMYB75 which is strongly induced by drought, sodium chloride (NaCl), abscisic acid (ABA) and mannitol. SiMYB75 is expressed in various sesame tissues, especially in root and its protein is predicted to be located in the nucleus. Ectopic over-expression of SiMYB75 in Arabidopsis notably promoted root growth and improved plant tolerance to drought, NaCl and mannitol treatments. Furthermore, SiMYB75 over-expressing lines accumulated higher content of ABA than wild-type plants under stresses and also increased sensitivity to ABA. Physiological analyses revealed that SiMYB75 confers abiotic stress tolerance by promoting stomatal closure to reduce water loss; inducing a strong reactive oxygen species scavenging activity to alleviate cell damage and apoptosis; and also, up-regulating the expression levels of various stress-marker genes in the ABA-dependent pathways. Our data suggested that SiMYB75 positively modulates drought, salt and osmotic stresses responses through ABA-mediated pathways. Thus, SiMYB75 could be a promising candidate gene for the improvement of abiotic stress tolerance in crop species including sesame.
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Affiliation(s)
- Komivi Dossa
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
- Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Dakar, Sénégal
- Corresponding authors’ e-mail addresses: ;
| | - Marie A Mmadi
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
- Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Dakar, Sénégal
| | - Rong Zhou
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
| | - Aili Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
| | - Yuanxiao Yang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
| | - Diaga Diouf
- Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Dakar, Sénégal
| | - Jun You
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
| | - Xiurong Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, China
- Corresponding authors’ e-mail addresses: ;
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12
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Growth, Secondary Metabolites and Enzyme Activity Responses of Two Edible Fern Species to Drought Stress and Rehydration in Northeast China. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9030137] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The drought resistance mechanism of Matteuccia struthiopteris (L.) Todar. and Athyrium multidentatum (Doll.) Ching were measured under natural drought exposure. The results showed that the two edible fern species showed stronger resistance in the early stages of drought, mainly expressed as the decrease of relative leaf water content (RLWC), increase of osmotic substances, secondary metabolites such as flavonoids (FC), total phenols (TPC), proantho cyanidins (PCC) content and enzyme activity (superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX)). The higher RLWC, FC, TPC, PCC and abscisic acid (ABA) content and lower H2O2 content indicates the stronger non-enzymatic antioxidant system and drought resistance of A. multidentatum. However, the proline (Pro) content changed slowly, and the synthesis of soluble protein (SP), total phenols, proantho cyanidins and ABA, SOD activity of two fern species were inhibited in the late stages of drought stress. This study can provide a scientific basis for the cultivation and utilization of edible fern species under forest in Northeast China.
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Komivi D, Marie AM, Rong Z, Qi Z, Mei Y, Ndiaga C, Diaga D, Linhai W, Xiurong Z. The contrasting response to drought and waterlogging is underpinned by divergent DNA methylation programs associated with transcript accumulation in sesame. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 277:207-217. [PMID: 30466587 DOI: 10.1016/j.plantsci.2018.09.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 05/07/2023]
Abstract
DNA methylation is a heritable epigenetic mechanism that participates in gene regulation under abiotic stresses in plants. Sesame (Sesamum indicum) is typically considered a drought-tolerant crop but highly susceptible to waterlogging, probably because of its origin in Africa or India. Understanding DNA methylation patterns under drought and waterlogging conditions can provide insights into the regulatory mechanisms underlying sesame contrasting responses to these abiotic stresses. We combined Methylation-Sensitive Amplified Polymorphism and transcriptome analyses to profile cytosine methylation patterns, transcript accumulation, and their interplay in drought-tolerant and waterlogging-tolerant sesame genotypes. Drought stress strongly induced de novo methylation (DNM) whereas most of the loci were demethylated (DM) during the recovery phase. In contrast, waterlogging stress decreased the level of methylation but during the recovery phase, both DM and DNM were concomitantly deployed. In both stresses, the levels of the differentially accumulated transcripts (DATs) highly correlated with the methylation patterns. We observed that DM was associated with an increase of DAT levels while DNM was correlated with a decrease of DAT levels. Altogether, sesame has divergent epigenetic programs that respond to drought and waterlogging stresses and an interplay among DNA methylation and transcript accumulation may partly modulate the contrasting responses to these stresses.
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Affiliation(s)
- Dossa Komivi
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China; Centre d'Etude Régional Pour l'Amélioration de l'Adaptation à la Sécheresse (CERAAS), Route de Khombole, Thiès, BP, 3320, Senegal; Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Code postal 10700, Dakar, Senegal.
| | - Ali Mmadi Marie
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China; Centre d'Etude Régional Pour l'Amélioration de l'Adaptation à la Sécheresse (CERAAS), Route de Khombole, Thiès, BP, 3320, Senegal; Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Code postal 10700, Dakar, Senegal
| | - Zhou Rong
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China
| | - Zhou Qi
- College of Life Science, Hubei University, Wuhan, China
| | - Yang Mei
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China
| | - Cisse Ndiaga
- Centre d'Etude Régional Pour l'Amélioration de l'Adaptation à la Sécheresse (CERAAS), Route de Khombole, Thiès, BP, 3320, Senegal
| | - Diouf Diaga
- Laboratoire Campus de Biotechnologies Végétales, Département de Biologie Végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Code postal 10700, Dakar, Senegal
| | - Wang Linhai
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China
| | - Zhang Xiurong
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, No.2 Xudong 2nd Road, Wuhan, 430062, China.
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