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

Ashraf Tayeh, Arnaud Estoup, Guillaume Laugier, Anne Loiseau, Julie Turgeon, S. Toepfer, Benoit Facon

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalEvolutionary Applications
Volume5
Issue number5
DOIs
Publication statusPublished - Jul 2012

Fingerprint

Harmonia axyridis
biological control
Fertility
fecundity
Beauveria
Biological Control Agents
captive breeding
Aphids
biocontrol agent
biological control agents
aphid
life history trait
rearing
Breeding
genetic variation
mass rearing
fitness
Fungi
pathogen
Beauveria bassiana

Keywords

  • Biological control
  • Biological invasion
  • Fungal entomopathogen
  • Genetic drift
  • Harmonia axyridis
  • Inadvertent selection
  • Laboratory adaptation
  • Life-history traits

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Ecology, Evolution, Behavior and Systematics
  • Genetics

Cite this

Evolution in biocontrol strains : Insight from the harlequin ladybird Harmonia axyridis. / Tayeh, Ashraf; Estoup, Arnaud; Laugier, Guillaume; Loiseau, Anne; Turgeon, Julie; Toepfer, S.; Facon, Benoit.

In: Evolutionary Applications, Vol. 5, No. 5, 07.2012, p. 481-488.

Research output: Contribution to journalArticle

Tayeh, Ashraf ; Estoup, Arnaud ; Laugier, Guillaume ; Loiseau, Anne ; Turgeon, Julie ; Toepfer, S. ; Facon, Benoit. / Evolution in biocontrol strains : Insight from the harlequin ladybird Harmonia axyridis. In: Evolutionary Applications. 2012 ; Vol. 5, No. 5. pp. 481-488.
@article{9bc61e33dbd1473e94a36cec28b3dfba,
title = "Evolution in biocontrol strains: Insight from the harlequin ladybird Harmonia axyridis",
abstract = "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.",
keywords = "Biological control, Biological invasion, Fungal entomopathogen, Genetic drift, Harmonia axyridis, Inadvertent selection, Laboratory adaptation, Life-history traits",
author = "Ashraf Tayeh and Arnaud Estoup and Guillaume Laugier and Anne Loiseau and Julie Turgeon and S. Toepfer and Benoit Facon",
year = "2012",
month = "7",
doi = "10.1111/j.1752-4571.2012.00274.x",
language = "English",
volume = "5",
pages = "481--488",
journal = "Evolutionary Applications",
issn = "1752-4563",
publisher = "Wiley-Blackwell",
number = "5",

}

TY - JOUR

T1 - Evolution in biocontrol strains

T2 - Insight from the harlequin ladybird Harmonia axyridis

AU - Tayeh, Ashraf

AU - Estoup, Arnaud

AU - Laugier, Guillaume

AU - Loiseau, Anne

AU - Turgeon, Julie

AU - Toepfer, S.

AU - Facon, Benoit

PY - 2012/7

Y1 - 2012/7

N2 - 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.

AB - 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.

KW - Biological control

KW - Biological invasion

KW - Fungal entomopathogen

KW - Genetic drift

KW - Harmonia axyridis

KW - Inadvertent selection

KW - Laboratory adaptation

KW - Life-history traits

UR - http://www.scopus.com/inward/record.url?scp=84863747142&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863747142&partnerID=8YFLogxK

U2 - 10.1111/j.1752-4571.2012.00274.x

DO - 10.1111/j.1752-4571.2012.00274.x

M3 - Article

C2 - 22949923

AN - SCOPUS:84863747142

VL - 5

SP - 481

EP - 488

JO - Evolutionary Applications

JF - Evolutionary Applications

SN - 1752-4563

IS - 5

ER -