Increasing temperature elevates the variation and spatial differentiation of pesticide tolerance in a plant pathogen

Evolutionary Applications

Jiasui Zhan¹  Li‐Na Yang²  E‐Jiao Wu³  Yan‐Ping Wang⁴  Oswald Nkurikiyimfura⁴  Li‐Ping Shang⁴  Yahuza Lurwanu⁴  Abdul Waheed⁴  Dun‐Chun He⁵  Zhen Wang⁶ 

[1] Department of Forest Mycology and Plant Pathology Swedish University of Agricultural Sciences Uppsala Sweden;Institute of Oceanography Minjiang University Fuzhou China;Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement Institute of Pomology Jiangsu Academy of Agricultural Sciences Nanjing China;Key Lab for Biopesticide and Chemical Biology Ministry of Education Fujian Agriculture and Forestry University Fuzhou China;School of Economics and Trade Fujian Jiangxia University Fuzhou China;Southern Potato Center of China Enshi Academy of Agricultural Sciences Enshi China;

关键词: adaptive evolution;    climatic change;    disease management;    fitness penalty;    fungicide resistance;    Phytophthora infestans;   

DOI  :  10.1111/eva.13197

来源: DOAJ

【 摘 要 】

Abstract Climate change and pesticide resistance are two of the most imminent challenges human society is facing today. Knowledge of how the evolution of pesticide resistance may be affected by climate change such as increasing air temperature on the planet is important for agricultural production and ecological sustainability in the future but is lack in scientific literatures reported from empirical research. Here, we used the azoxystrobin‐Phytophthora infestans interaction in agricultural systems to investigate the contributions of environmental temperature to the evolution of pesticide resistance and infer the impacts of global warming on pesticide efficacy and future agricultural production and ecological sustainability. We achieved this by comparing azoxystrobin sensitivity of 180 P. infestans isolates sampled from nine geographic locations in China under five temperature schemes ranging from 13 to 25°C. We found that local air temperature contributed greatly to the difference of azoxystrobin tolerance among geographic populations of the pathogen. Both among‐population and within‐population variations in azoxystrobin tolerance increased as experimental temperatures increased. We also found that isolates with higher azoxystrobin tolerance adapted to a broader thermal niche. These results suggest that global warming may enhance the risk of developing pesticide resistance in plant pathogens and highlight the increased challenges of administering pesticides for effective management of plant diseases to support agricultural production and ecological sustainability under future thermal conditions.

【 授权许可】

Unknown