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Nkurikiyimfura O, Waheed A, Fang H, Yuan X, Chen L, Wang YP, Lu G, Zhan J, Yang L. Fitness difference between two synonymous mutations of Phytophthora infestans ATP6 gene. BMC Ecol Evol 2024; 24:36. [PMID: 38494489 PMCID: PMC10946160 DOI: 10.1186/s12862-024-02223-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/11/2024] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND Sequence variation produced by mutation provides the ultimate source of natural selection for species adaptation. Unlike nonsynonymous mutation, synonymous mutations are generally considered to be selectively neutral but accumulating evidence suggests they also contribute to species adaptation by regulating the flow of genetic information and the development of functional traits. In this study, we analysed sequence characteristics of ATP6, a housekeeping gene from 139 Phytophthora infestans isolates, and compared the fitness components including metabolic rate, temperature sensitivity, aggressiveness, and fungicide tolerance among synonymous mutations. RESULTS We found that the housekeeping gene exhibited low genetic variation and was represented by two major synonymous mutants at similar frequency (0.496 and 0.468, respectively). The two synonymous mutants were generated by a single nucleotide substitution but differed significantly in fitness as well as temperature-mediated spatial distribution and expression. The synonymous mutant ending in AT was more common in cold regions and was more expressed at lower experimental temperature than the synonymous mutant ending in GC and vice versa. CONCLUSION Our results are consistent with the argument that synonymous mutations can modulate the adaptive evolution of species including pathogens and have important implications for sustainable disease management, especially under climate change.
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Affiliation(s)
- Oswald Nkurikiyimfura
- Institute of Plant Virology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Abdul Waheed
- Institute of Plant Virology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Hanmei Fang
- Institute of Plant Virology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Xiaoxian Yuan
- Institute of Plant Virology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Lixia Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Yan-Ping Wang
- College of Chemistry and Life Sciences, Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu Normal University, Chengdu, Sichuan, 611130, China
| | - Guodong Lu
- Department of Plant Pathology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, 75007, Sweden.
| | - Lina Yang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
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2
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Waheed A, Shen L, Nkurikiyimfura O, Fang H, Wang Y, Andersson B, Zhan J, Yang L. Evaluating the contribution of historical and contemporary temperature to the oospore production of self-fertile Phytophthora infestans. Evol Appl 2024; 17:e13643. [PMID: 38293269 PMCID: PMC10824702 DOI: 10.1111/eva.13643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 02/01/2024] Open
Abstract
Reproductive systems play an important role in the ecological function of species, but little is known about how climate change, such as global warming, may affect the reproductive systems of microbes. In this study, 116 Phytophthora infestans isolates sampled from five different altitudes along a mountain were evaluated under five temperature regimes to determine the effects of historical and experimental temperature on the reproductive system of the pathogen. Both altitude, a proxy for historical pathogen adaptation to temperature, and temperature used in the experiment affected the sexual reproduction of the pathogen, with experimental temperature, that is, contemporary temperature, playing a role several times more important than historical temperature. Furthermore, the potential of sexual reproduction, measured by the number of oospores quantified, increased with the temperature breadth (i.e., difference between the highest and lowest temperature at which sexual reproduction takes place) of the pathogen and reached the maximum at the experimental temperature of 21°C, which is higher than the annual average temperature in many potato-producing areas. The results suggest that rising air temperature associated with global warming may increase the potential of sexual reproduction in P. infestans. Given the importance of sexuality in pathogenicity and ecological adaptation of pathogens, these results suggest that global warming may increase the threat of P. infestans to agricultural production and other ecological services and highlight that new epidemiological strategies may need to be implemented for future food security and ecological resilience.
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Affiliation(s)
- Abdul Waheed
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of OceanographyMinjiang UniversityFuzhouChina
| | - Lin‐Lin Shen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of OceanographyMinjiang UniversityFuzhouChina
| | | | - Han‐Mei Fang
- Institute of Plant PathologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Yan‐Ping Wang
- College of Chemistry and Life SciencesChengdu Normal UniversityChengduChina
| | - Björn Andersson
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesUppsalaSweden
| | - Jiasui Zhan
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesUppsalaSweden
| | - Li‐Na Yang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of OceanographyMinjiang UniversityFuzhouChina
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3
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De la Cruz G, Blas R, Pérez W, Neyra E, Ortiz R. Foliar transcriptomes reveal candidate genes for late blight resistance in cultivars of diploid potato Solanum tuberosum L. Andigenum Group. FRONTIERS IN PLANT SCIENCE 2023; 14:1210046. [PMID: 37780511 PMCID: PMC10535101 DOI: 10.3389/fpls.2023.1210046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/10/2023] [Indexed: 10/03/2023]
Abstract
Characterization of major resistance (R) genes to late blight (LB) -caused by the oomycete Phytophthora infestans- is very important for potato breeding. The objective of this study was to identify novel genes for resistance to LB from diploid Solanum tuberosum L. Andigenum Group (StAG) cultivar accessions. Using comparative analysis with a edgeR bioconductor package for differential expression analysis of transcriptomes, two of these accessions with contrasting levels of resistance to LB were analyzed using digital gene expression data. As a result, various differentially expressed genes (P ≤ 0.0001, Log2FC ≥ 2, FDR < 0.001) were noted. The combination of transcriptomic analysis provided 303 candidate genes that are overexpressed and underexpressed, thereby giving high resistance to LB. The functional analysis showed differential expression of R genes and their corresponding proteins related to disease resistance, NBS-LRR domain proteins, and specific disease resistance proteins. Comparative analysis of specific tissue transcriptomes in resistant and susceptible genotypes can be used for rapidly identifying candidate R genes, thus adding novel genes from diploid StAG cultivar accessions for host plant resistance to P. infestans in potato.
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Affiliation(s)
- Germán De la Cruz
- Laboratorio de Genética y Biotecnología Vegetal, Facultad de Ciencias Agrarias, Universidad Nacional de San Cristóbal de Huamanga (UNSCH), Ayacucho, Peru
| | - Raúl Blas
- Instituto de Biotecnologia (IBT), Facultad de Agronomia, Universidad Nacional Agraria La Molina (UNALM), Lima, Peru
| | - Willmer Pérez
- Plant Pathology Laboratory, Crop and Systems Sciences Division, International Potato Center, Lima, Peru
| | - Edgar Neyra
- Unidad de Genómica, Laboratorios de Investigación y Desarrollo, Facultad de Ciencias e Ingeniería, Universidad Peruana Cayetano Heredia, Lima, Peru
- Departamento Académico de Tecnología Médica, Facultad de Medicina, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Rodomiro Ortiz
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Lomma, Sweden
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4
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Yang LN, Ren M, Zhan J. Modeling plant diseases under climate change: evolutionary perspectives. TRENDS IN PLANT SCIENCE 2023; 28:519-526. [PMID: 36593138 DOI: 10.1016/j.tplants.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 12/07/2022] [Accepted: 12/15/2022] [Indexed: 05/22/2023]
Abstract
Infectious plant diseases are a major threat to global agricultural productivity, economic development, and ecological integrity. There is widespread concern that these social and natural disasters caused by infectious plant diseases may escalate with climate change and computer modeling offers a unique opportunity to address this concern. Here, we analyze the intrinsic problems associated with current modeling strategies and highlight the need to integrate evolutionary principles into polytrophic, eco-evolutionary frameworks to improve predictions. We particularly discuss how evolutionary shifts in functional trade-offs, relative adaptability between plants and pathogens, ecosystems, and climate preferences induced by climate change may feedback to future plant disease epidemics and how technological advances can facilitate the generation and integration of this relevant knowledge for better modeling predictions.
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Affiliation(s)
- Li-Na Yang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Maozhi Ren
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science and Technology Center, Chengdu, China.
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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5
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Elevating Air Temperature may Enhance Future Epidemic Risk of the Plant Pathogen Phytophthora infestans. J Fungi (Basel) 2022; 8:jof8080808. [PMID: 36012796 PMCID: PMC9410326 DOI: 10.3390/jof8080808] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/15/2022] [Accepted: 07/29/2022] [Indexed: 01/27/2023] Open
Abstract
Knowledge of pathogen adaptation to global warming is important for predicting future disease epidemics and food production in agricultural ecosystems; however, the patterns and mechanisms of such adaptation in many plant pathogens are poorly understood. Here, population genetics combined with physiological assays and common garden experiments were used to analyze the genetics, physiology, and thermal preference of pathogen aggressiveness in an evolutionary context using 140 Phytophthora infestans genotypes under five temperature regimes. Pathogens originating from warmer regions were more thermophilic and had a broader thermal niche than those from cooler regions. Phenotypic plasticity contributed ~10-fold more than heritability measured by genetic variance. Further, experimental temperatures altered the expression of genetic variation and the association of pathogen aggressiveness with the local temperature. Increasing experimental temperature enhanced the variation in aggressiveness. At low experimental temperatures, pathogens from warmer places produced less disease than those from cooler places; however, this pattern was reversed at higher experimental temperatures. These results suggest that geographic variation in the thermal preferences of pathogens should be included in modeling future disease epidemics in agricultural ecosystems in response to global warming, and greater attention should be paid to preventing the movement of pathogens from warmer to cooler places.
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6
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Wang YP, Yang LN, Feng YY, Liu S, Zhan J. Single Amino Acid Substitution the DNA Repairing Gene Radiation-Sensitive 4 Contributes to Ultraviolet Tolerance of a Plant Pathogen. Front Microbiol 2022; 13:927139. [PMID: 35910660 PMCID: PMC9330021 DOI: 10.3389/fmicb.2022.927139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
To successfully survive and reproduce, all species constantly modify the structure and expression of their genomes to cope with changing environmental conditions including ultraviolet (UV) radiation. Thus, knowledge of species adaptation to environmental changes is a central theme of evolutionary studies which could have important implication for disease management and social-ecological sustainability in the future but is generally insufficient. Here, we investigated the evolution of UV adaptation in organisms by population genetic analysis of sequence structure, physiochemistry, transcription, and fitness variation in the radiation-sensitive 4 (RAD4) gene of the Irish potato famine pathogen Phytophthora infestans sampled from various altitudes. We found that RAD4 is a key gene determining the resistance of the pathogen to UV stress as indicated by strong phenotype-genotype-geography associations and upregulated transcription after UV exposure. We also found conserved evolution in the RAD4 gene. Only five nucleotide haplotypes corresponding to three protein isoforms generated by point mutations were detected in the 140 sequences analyzed and the mutations were constrained to the N-terminal domain of the protein. Physiochemical changes associated with non-synonymous mutations generate severe fitness penalty to mutants, which are purged out by natural selection, leading to the conserved evolution observed in the gene.
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Affiliation(s)
- Yan-Ping Wang
- Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, College of Chemistry and Life Sciences, Chengdu Normal University, Chengdu, China
| | - Li-Na Yang
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Yuan-Yuan Feng
- Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, College of Chemistry and Life Sciences, Chengdu Normal University, Chengdu, China
| | - Songqing Liu
- Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, College of Chemistry and Life Sciences, Chengdu Normal University, Chengdu, China
- *Correspondence: Songqing Liu,
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Jiasui Zhan,
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7
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Shen LL, Waheed A, Wang YP, Nkurikiyimfura O, Wang ZH, Yang LN, Zhan J. Mitochondrial Genome Contributes to the Thermal Adaptation of the Oomycete Phytophthora infestans. Front Microbiol 2022; 13:928464. [PMID: 35836411 PMCID: PMC9273971 DOI: 10.3389/fmicb.2022.928464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
As a vital element of climate change, elevated temperatures resulting from global warming present new challenges to natural and agricultural sustainability, such as ecological disease management. Mitochondria regulate the energy production of cells in responding to environmental fluctuation, but studying their contribution to the thermal adaptation of species is limited. This knowledge is needed to predict future disease epidemiology for ecology conservation and food security. Spatial distributions of the mitochondrial genome (mtDNA) in 405 Phytophthora infestans isolates originating from 15 locations were characterized. The contribution of MtDNA to thermal adaptation was evaluated by comparative analysis of mtDNA frequency and intrinsic growth rate, relative population differentiation in nuclear and mtDNA, and associations of mtDNA distribution with local geography climate conditions. Significant variation in frequency, intrinsic growth rate, and spatial distribution was detected in mtDNA. Population differentiation in mtDNA was significantly higher than that in the nuclear genome, and spatial distribution of mtDNA was strongly associated with local climatic conditions and geographic parameters, particularly air temperature, suggesting natural selection caused by a local temperature is the main driver of the adaptation. Dominant mtDNA grew faster than the less frequent mtDNA. Our results provide useful insights into the evolution of pathogens under global warming. Given its important role in biological functions and adaptation to local air temperature, mtDNA intervention has become an increasing necessity for future disease management. To secure ecological integrity and food production under global warming, a synergistic study on the interactive effect of changing temperature on various components of biological and ecological functions of mitochondria in an evolutionary frame is urgently needed.
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Affiliation(s)
- Lin-Lin Shen
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Abdul Waheed
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Yan-Ping Wang
- Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu Normal University, Chengdu, China
| | - Oswald Nkurikiyimfura
- Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zong-Hua Wang
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Li-Na Yang
- Institute of Oceanography, Minjiang University, Fuzhou, China
- *Correspondence: Li-Na Yang
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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8
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Wang YP, Pan ZC, Yang LN, Burdon JJ, Friberg H, Sui QJ, Zhan J. Optimizing Plant Disease Management in Agricultural Ecosystems Through Rational In-Crop Diversification. FRONTIERS IN PLANT SCIENCE 2021; 12:767209. [PMID: 35003160 PMCID: PMC8739928 DOI: 10.3389/fpls.2021.767209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 11/24/2021] [Indexed: 06/14/2023]
Abstract
Biodiversity plays multifaceted roles in societal development and ecological sustainability. In agricultural ecosystems, using biodiversity to mitigate plant diseases has received renewed attention in recent years but our knowledge of the best ways of using biodiversity to control plant diseases is still incomplete. In term of in-crop diversification, it is not clear how genetic diversity per se in host populations interacts with identifiable resistance and other functional traits of component genotypes to mitigate disease epidemics and what is the best way of structuring mixture populations. In this study, we created a series of host populations by mixing different numbers of potato varieties showing different late blight resistance levels in different proportions. The amount of naturally occurring late blight disease in the mixture populations was recorded weekly during the potato growing seasons. The percentage of disease reduction (PDR) in the mixture populations was calculated by comparing their observed late blight levels relative to that expected when they were planted in pure stands. We found that PDR in the mixtures increased as the number of varieties and the difference in host resistance (DHR) between the component varieties increased. However, the level of host resistance in the potato varieties had little impact on PDR. In mixtures involving two varieties, the optimum proportion of component varieties for the best PDR depended on their DHR, with an increasing skewness to one of the component varieties as the DHR between the component varieties increased. These results indicate that mixing crop varieties can significantly reduce disease epidemics in the field. To achieve the best disease mitigation, growers should include as many varieties as possible in mixtures or, if only two component mixtures are possible, increase DHR among the component varieties.
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Affiliation(s)
- Yan-Ping Wang
- College of Chemistry and Life Sciences, Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu Normal University, Chengdu, China
| | - Zhe-Chao Pan
- Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Li-Na Yang
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | | | - Hanna Friberg
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Qi-jun Sui
- Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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9
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Hashemi M, Tabet D, Sandroni M, Benavent-Celma C, Seematti J, Andersen CB, Grenville-Briggs LJ. The hunt for sustainable biocontrol of oomycete plant pathogens, a case study of Phytophthora infestans. FUNGAL BIOL REV 2021. [DOI: 10.1016/j.fbr.2021.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Waheed A, Wang YP, Nkurikiyimfura O, Li WY, Liu ST, Lurwanu Y, Lu GD, Wang ZH, Yang LN, Zhan J. Effector Avr4 in Phytophthora infestans Escapes Host Immunity Mainly Through Early Termination. Front Microbiol 2021; 12:646062. [PMID: 34122360 PMCID: PMC8192973 DOI: 10.3389/fmicb.2021.646062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/19/2021] [Indexed: 11/13/2022] Open
Abstract
Effector genes play critical roles in the antagonistic interactions between plants and pathogens. However, knowledge of mutation mechanisms and evolutionary processes in effector genes and the contribution of climatic factors to the evolution of effector genes are fragmented but important in sustainable management of plant diseases and securing food supply under changing climates. Here, we used a population genetic approach to explore the evolution of the Avr4 gene in Phytophthora infestans, the causal agent of potato blight. We found that the Avr4 gene exhibited a high genetic diversity generated by point mutation and sequence deletion. Frameshifts caused by a single base-pair deletion at the 194th nucleotide position generate two stop codons, truncating almost the entire C-terminal, which is important for effector function and R4 recognition in all sequences. The effector is under natural selection for adaptation supported by comparative analyses of population differentiation (FST ) and isolation-by-distance between Avr4 sequences and simple sequence repeat marker loci. Furthermore, we found that local air temperature was positively associated with pairwise FST in the Avr4 sequences. These results suggest that the evolution of the effector gene is influenced by local air temperature, and the C-terminal truncation is one of the main mutation mechanisms in the P. infestans effector gene to circumvent the immune response of potato plants. The implication of these results to agricultural and natural sustainability in future climate conditions is discussed.
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Affiliation(s)
- Abdul Waheed
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yan-Ping Wang
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Oswald Nkurikiyimfura
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wen-Yang Li
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shi-Ting Liu
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yahuza Lurwanu
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Crop Protection, Bayero University Kano, Kano, Nigeria
| | - Guo-Dong Lu
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zong-Hua Wang
- Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Li-Na Yang
- Key Lab for Bio Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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11
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Wang YP, Wu EJ, Lurwanu Y, Ding JP, He DC, Waheed A, Nkurikiyimfura O, Liu ST, Li WY, Wang ZH, Yang L, Zhan J. Evidence for a synergistic effect of post-translational modifications and genomic composition of eEF-1α on the adaptation of Phytophthora infestans. Ecol Evol 2021; 11:5484-5496. [PMID: 34026022 PMCID: PMC8131795 DOI: 10.1002/ece3.7442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 12/18/2022] Open
Abstract
Genetic variation plays a fundamental role in pathogen's adaptation to environmental stresses. Pathogens with low genetic variation tend to survive and proliferate more poorly due to their lack of genotypic/phenotypic polymorphisms in responding to fluctuating environments. Evolutionary theory hypothesizes that the adaptive disadvantage of genes with low genomic variation can be compensated for structural diversity of proteins through post-translation modification (PTM) but this theory is rarely tested experimentally and its implication to sustainable disease management is hardly discussed. In this study, we analyzed nucleotide characteristics of eukaryotic translation elongation factor-1α (eEF-lα) gene from 165 Phytophthora infestans isolates and the physical and chemical properties of its derived proteins. We found a low sequence variation of eEF-lα protein, possibly attributable to purifying selection and a lack of intra-genic recombination rather than reduced mutation. In the only two isoforms detected by the study, the major one accounted for >95% of the pathogen collection and displayed a significantly higher fitness than the minor one. High lysine representation enhances the opportunity of the eEF-1α protein to be methylated and the absence of disulfide bonds is consistent with the structural prediction showing that many disordered regions are existed in the protein. Methylation, structural disordering, and possibly other PTMs ensure the ability of the protein to modify its functions during biological, cellular and biochemical processes, and compensate for its adaptive disadvantage caused by sequence conservation. Our results indicate that PTMs may function synergistically with nucleotide codes to regulate the adaptive landscape of eEF-1α, possibly as well as other housekeeping genes, in P. infestans. Compensatory evolution between pre- and post-translational phase in eEF-1α could enable pathogens quickly adapting to disease management strategies while efficiently maintaining critical roles of the protein playing in biological, cellular, and biochemical activities. Implications of these results to sustainable plant disease management are discussed.
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Affiliation(s)
- Yan-Ping Wang
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - E-Jiao Wu
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Yahuza Lurwanu
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
- Department of Crop Protection Bayero University Kano Kano Nigeria
| | - Ji-Peng Ding
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Dun-Chun He
- School of Economics and Trade Fujian Jiangxia University Fuzhou China
| | - Abdul Waheed
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Oswald Nkurikiyimfura
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Shi-Ting Liu
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Wen-Yang Li
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
| | - Zong-Hua Wang
- Fujian University Key Laboratory for Plant-Microbe Interaction College of Life Sciences Fujian Agriculture and Forestry University Fuzhou China
- Institute of Oceanography Minjiang University Fuzhou China
| | - Lina Yang
- Key lab for Bio pesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China
- Institute of Oceanography Minjiang University Fuzhou China
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology Swedish University of Agricultural Sciences Uppsala Sweden
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12
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Wang YP, Waheed A, Liu ST, Li WY, Nkurikiyimfura O, Lurwanu Y, Wang Z, Grenville-Briggs LJ, Yang L, Zheng L, Zhan J. Altitudinal Heterogeneity of UV Adaptation in Phytophthorainfestans Is Associated with the Spatial Distribution of a DNA Repair Gene. J Fungi (Basel) 2021; 7:245. [PMID: 33805198 PMCID: PMC8064308 DOI: 10.3390/jof7040245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 11/16/2022] Open
Abstract
Climate change is considered a major threat to society and nature. UV irradiation is the most important environmental genotoxic agent. Thus, how elevated UV irradiation may influence human health and ecosystems has generated wide concern in the scientific community, as well as with policy makers and the public in general. In this study, we investigated patterns and mechanisms of UV adaptation in natural ecosystems by studying a gene-specific variation in the potato late blight pathogen, Phytophthora infestans. We compared the sequence characteristics of radiation sensitive 23 (RAD23), a gene involved in the nucleotide excision repair (NER) pathway and UV tolerance, in P. infestans isolates sampled from various altitudes. We found that lower genetic variation in the RAD23 gene was caused by natural selection. The hypothesis that UV irradiation drives this selection was supported by strong correlations between the genomic characteristics and altitudinal origin (historic UV irradiation) of the RAD23 sequences with UV tolerance of the P. infestans isolates. These results indicate that the RAD23 gene plays an important role in the adaptation of P. infestans to UV stress. We also found that different climatic factors could work synergistically to determine the evolutionary adaptation of species, making the influence of climate change on ecological functions and resilience more difficult to predict. Future attention should aim at understanding the collective impact generated by simultaneous change in several climate factors on species adaptation and ecological sustainability, using state of the art technologies such as experimental evolution, genome-wide scanning, and proteomics.
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Affiliation(s)
- Yan-Ping Wang
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Abdul Waheed
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Shi-Ting Liu
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Wen-Yang Li
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Oswald Nkurikiyimfura
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Yahuza Lurwanu
- Department of Crop Protection, Bayero University Kano, Kano 70001, Nigeria;
| | - Zonghua Wang
- Fujian University Key Laboratory for Plant-Microbe Interaction, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;
- Institute of Oceanography, Minjiang University, Fuzhou, Fujian 350108, China
| | - Laura J. Grenville-Briggs
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 23053 Alnarp, Sweden;
| | - Lina Yang
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
- Institute of Oceanography, Minjiang University, Fuzhou, Fujian 350108, China
| | - Luping Zheng
- Key Lab for Bio-Pesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; (Y.-P.W.); (A.W.); (S.-T.L.); (W.-Y.L.); (O.N.)
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden;
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13
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Bogaerts‐Márquez M, Guirao‐Rico S, Gautier M, González J. Temperature, rainfall and wind variables underlie environmental adaptation in natural populations of Drosophila melanogaster. Mol Ecol 2021; 30:938-954. [PMID: 33350518 PMCID: PMC7986194 DOI: 10.1111/mec.15783] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 02/06/2023]
Abstract
While several studies in a diverse set of species have shed light on the genes underlying adaptation, our knowledge on the selective pressures that explain the observed patterns lags behind. Drosophila melanogaster is a valuable organism to study environmental adaptation because this species originated in Southern Africa and has recently expanded worldwide, and also because it has a functionally well-annotated genome. In this study, we aimed to decipher which environmental variables are relevant for adaptation of D. melanogaster natural populations in Europe and North America. We analysed 36 whole-genome pool-seq samples of D. melanogaster natural populations collected in 20 European and 11 North American locations. We used the BayPass software to identify single nucleotide polymorphisms (SNPs) and transposable elements (TEs) showing signature of adaptive differentiation across populations, as well as significant associations with 59 environmental variables related to temperature, rainfall, evaporation, solar radiation, wind, daylight hours, and soil type. We found that in addition to temperature and rainfall, wind related variables are also relevant for D. melanogaster environmental adaptation. Interestingly, 23%-51% of the genes that showed significant associations with environmental variables were not found overly differentiated across populations. In addition to SNPs, we also identified 10 reference transposable element insertions associated with environmental variables. Our results showed that genome-environment association analysis can identify adaptive genetic variants that are undetected by population differentiation analysis while also allowing the identification of candidate environmental drivers of adaptation.
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Affiliation(s)
- María Bogaerts‐Márquez
- Institute of Evolutionary Biology (CSIC‐Universitat Pompeu Fabra)BarcelonaSpain
- The European Drosophila Population Genomics Consortium (DrosEU)Université de MontpellierMontpellierFrance
| | - Sara Guirao‐Rico
- Institute of Evolutionary Biology (CSIC‐Universitat Pompeu Fabra)BarcelonaSpain
- The European Drosophila Population Genomics Consortium (DrosEU)Université de MontpellierMontpellierFrance
| | - Mathieu Gautier
- CBGP, INRA, CIRAD, IRD, Montpellier SupAgroUniversité de MontpellierMontpellierFrance
| | - Josefa González
- Institute of Evolutionary Biology (CSIC‐Universitat Pompeu Fabra)BarcelonaSpain
- The European Drosophila Population Genomics Consortium (DrosEU)Université de MontpellierMontpellierFrance
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14
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Wu E, Wang Y, Yahuza L, He M, Sun D, Huang Y, Liu Y, Yang L, Zhu W, Zhan J. Rapid adaptation of the Irish potato famine pathogen Phytophthora infestans to changing temperature. Evol Appl 2020; 13:768-780. [PMID: 32211066 PMCID: PMC7086108 DOI: 10.1111/eva.12899] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/19/2019] [Accepted: 10/28/2019] [Indexed: 01/06/2023] Open
Abstract
Temperature plays a multidimensional role in host-pathogen interactions. As an important element of climate change, elevated world temperature resulting from global warming presents new challenges to sustainable disease management. Knowledge of pathogen adaptation to global warming is needed to predict future disease epidemiology and formulate mitigating strategies. In this study, 21 Phytophthora infestans isolates originating from seven thermal environments were acclimated for 200 days under stepwise increase or decrease of experimental temperatures and evolutionary responses of the isolates to the thermal changes were evaluated. We found temperature acclimation significantly increased the fitness and genetic adaptation of P. infestans isolates at both low and high temperatures. Low-temperature acclimation enforced the countergradient adaptation of the pathogen to its past selection and enhanced the positive association between the pathogen's intrinsic growth rate and aggressiveness. At high temperatures, we found that pathogen growth collapsed near the maximum temperature for growth, suggesting a thermal niche boundary may exist in the evolutionary adaptation of P. infestans. These results indicate that pathogens can quickly adapt to temperature shifts in global warming. If this is associated with environmental conditions favoring pathogen spread, it will threaten future food security and human health and require the establishment of mitigating actions.
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Affiliation(s)
- E‐Jiao Wu
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
- Jiangsu Key Laboratory for Horticultural Crop Genetic ImprovementInstitute of PomologyJiangsu Academy of Agricultural SciencesNanjingChina
| | - Yan‐Ping Wang
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Lurwanu Yahuza
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Meng‐Han He
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
- College of Plant ProtectionHenan Agricultural UniversityZhengzhouChina
| | - Dan‐Li Sun
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Yan‐Mei Huang
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Yu‐Chan Liu
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Li‐Na Yang
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Wen Zhu
- Key Lab for Biopesticide and Chemical BiologyMinistry of EducationFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Jiasui Zhan
- Fujian Key Laboratory of Plant VirologyInstitute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan CropsFujian Agriculture and Forestry UniversityFuzhouChina
- Department of Forest Mycology and Plant PathologySwedish University of Agricultural SciencesUppsalaSweden
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15
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Temperature-Mediated Plasticity Regulates the Adaptation of Phytophthora infestans to Azoxystrobin Fungicide. SUSTAINABILITY 2020. [DOI: 10.3390/su12031188] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fungicide is one of the main approaches used in agriculture to manage plant diseases for food production, but their effectiveness can be reduced due to the evolution of plant pathogens. Understanding the genetics and evolutionary processes responsible for the development of fungicide resistance is a key to food production and social sustainability. In this study, we used a common garden experiment to examine the source of genetic variation, natural selection, and temperature contributing to the development of azoxystrobin resistance in Phytophthora infestans and infer sustainable ways of plant disease management in future. We found that plasticity contributed to ~40% of phenotypic variation in azoxystrobin sensitivity while heritability accounted for 16%. Further analysis indicated that overall population differentiation in azoxystrobin sensitivity (QST) was significantly greater than the overall population differentiation in simple sequence repeat (SSR) marker (FST), and the P. infestans isolates demonstrated higher level of azoxystrobin sensitivity at the higher experimental temperature. These results suggest that changes in target gene expression, enzymatic activity, or metabolic rate of P. infestans play a more important role in the adaptation of the pathogen to azoxystrobin resistance than that of mutations in target genes. The development of azoxystrobin resistance in P. infestans is likely driven by diversifying selection for local adaptation, and elevated temperature associated with global warming in the future may increase the effectiveness of using azoxystrobin to manage P. infestans. The sustainable approaches for increasing disease control effectiveness and minimizing the erosion of the fungicide efficacy are proposed.
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16
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He MH, Wang YP, Wu EJ, Shen LL, Yang LN, Wang T, Shang LP, Zhu W, Zhan J. Constraining Evolution of Alternaria alternata Resistance to a Demethylation Inhibitor (DMI) Fungicide Difenoconazole. Front Microbiol 2019; 10:1609. [PMID: 31354690 PMCID: PMC6636547 DOI: 10.3389/fmicb.2019.01609] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/27/2019] [Indexed: 02/02/2023] Open
Abstract
Evolution of fungicide resistance in plant pathogens is one of major concerns in sustainable plant disease management. In this study, the genetics and potential of developing resistance to a demethylation inhibitor (DMI) fungicide, difenoconazole, in the fungal pathogen Alternaria alternata was investigated using a comparative analysis of genetic variation in molecular (Single Sequence Repeats, SSR) and phenotypic (fungicide tolerance) markers. No difenoconazole resistance was found in the 215 A. alternata isolates sampled from seven different ecological zones in China despite the widespread use of the fungicide for more than 20 years. This result suggests that the risk of developing resistance to difenoconazole in A. alternata is low and we hypothesize that the low risk is likely caused by fitness penalties incurred by resistant mutants and the multiple mechanisms involving in developing resistance. Heritability and plasticity account for ∼24 and 3% of phenotypic variation, respectively, indicating that genetic adaptation by sequence variation plays a more important role in the evolution of difenoconazole resistance than physiological adaptation by altering gene expression. Constraining selection in the evolution of A. alternata resistance to difenoconazole was documented by different patterns of population differentiation and isolate-by-distance between SSR markers and difenoconazole tolerance. Though the risk of developing resistance is low, the findings of significant differences in difenoconazole tolerance among isolates and populations, and a skewing distribution toward higher tolerance suggests that a stepwise accumulation of tolerance to the fungicide might be occurring in the pathogen populations. As a consequence, dynamic management programs guided by evolutionary principles such as spatiotemporal rotations of fungicides with different modes of action are critical to prevent the continued accumulation of tolerance or the evolution of resistance to difenoconazole and other DMI fungicides.
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Affiliation(s)
- Meng-Han He
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yan-Ping Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
| | - E-Jiao Wu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lin-Lin Shen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Li-Na Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tian Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Li-Ping Shang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wen Zhu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jiasui Zhan
- Key Laboratory for Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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