Evolution in biocontrol strains: insight from the harlequin ladybird Harmonia axyridis

被引：26
|
作者：
Tayeh, Ashraf [2 ]
Estoup, Arnaud [2 ]
Laugier, Guillaume [2 ]
Loiseau, Anne [2 ]
Turgeon, Julie [1 ]
Toepfer, Stefan [3 ]
Facon, Benoit [2 ]
机构：
[1] Univ Laval Quebec, Dept Biol, Laval, PQ, Canada
[2] Cbgp Inra Ird Cirad Montpellier SupAgro Montpelli, INRA, Montpellier, France
[3] CABI Europe Switzerland, Plant Protect & Soil Conservat Directorate, Hodmezovasarhely, Hungary
来源：
EVOLUTIONARY APPLICATIONS | 2012年 / 5卷 / 05期
关键词：
biological control; biological invasion; fungal entomopathogen; genetic drift; Harmonia axyridis; inadvertent selection; laboratory adaptation; life-history traits; BIOLOGICAL-CONTROL; PALLAS COLEOPTERA; GENETIC ADAPTATION; COCCINELLIDAE; WILD; POPULATIONS; SELECTION; FITNESS; SALMON; BEETLE;
D O I：
10.1111/j.1752-4571.2012.00274.x
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
After being used as a biocontrol agent against aphids for decades without harmful consequences, the Asian harlequin ladybird Harmonia axyridis has suddenly become an invasive pest on a worldwide scale. We investigate the impact of captive breeding on several traits of this ladybird such as genetic diversity, fecundity, survival and pathogen resistance. We conducted an experiment in the laboratory to compare the fecundity and the susceptibility to the entomopathogenic fungus Beauveria bassiana of wild and biocontrol adults of H. axyridis. We compiled these new findings with already published data. Altogether, our findings suggest that mass rearing of biological control agents may strongly impact genetic diversity and life-history traits. We discuss how such changes may subsequently affect the fitness of biological control strains in natural environments.
引用
收藏
页码：481 / 488
页数：8
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