期刊
EVOLUTIONARY APPLICATIONS
卷 5, 期 5, 页码 470-480出版社
WILEY
DOI: 10.1111/j.1752-4571.2012.00273.x
关键词
antibiosis; biological control; entomopathogenic fungi; host range; host specificity; mycopesticide; parasitism
资金
- Canada Research Chair in Biological Control
Host/prey specificity is a significant concern in biological control. It influences the effectiveness of a natural enemy and the risks it might have on non-target organisms. Furthermore, narrow host specificity can be a limiting factor for the commercialization of natural enemies. Given the great diversity in taxonomy and mode of action of natural enemies, host specificity is a highly variable biological trait. This variability can be illustrated by opportunist fungi from the genus Lecanicillium, which have the capacity to exploit a wide range of hosts from arthropod pests to fungi causing plant diseases through different modes of action. Processes determining evolutionary trajectories in host specificity are closely linked to the modes of action of the natural enemy. This hypothesis is supported by advances in fungal genomics concerning the identity of genes and biological traits that are required for the evolution of life history strategies and host range. Despite the significance of specificity, we still need to develop a conceptual framework for better understanding of the relationship between specialization and successful biological control. The emergence of opportunistic pathogens and the development of omic technologies offer new opportunities to investigate evolutionary principles and applications of the specificity of biocontrol agents.
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