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HEREDITAS ›› 2012, Vol. 34 ›› Issue (2): 157-166.doi: 10.3724/SP.J.1005.2012.00157

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Population genetics of plant pathogens

ZHU Wen1,2, ZHAN Jia-Sui1,2   

  1. 1. Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China 2. Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2011-06-07 Revised:2011-12-08 Online:2012-02-20 Published:2012-02-25

Abstract: Comparing to natural ecosystems, the evolution of plant pathogens in agricultural ecosystems is generally faster due to high-density monocultures, large-scale application of agrochemicals, and international trade in agricultural products. Knowledge of the population genetics and evolutionary biology of plant pathogens is necessary to understand disease epidemiology, effectively breed and use resistant cultivars, and control plant diseases. In this article, we outlined the aims of population genetic studies in plant pathogens, discuss contributions of five evolutionary forces (i.e., mutation, gene flow, recombination, random genetic drift, and natural selection) to origin, maintenance, and distribution of genetic variation in time and space, and gave an overview of current research status in this field.

Key words: plant pathogens, population genetic structure, evolutionary forces