Reduced population size can induce quick evolution of inbreeding depression in the invasive ladybird Harmonia axyridis

Laugier, Guillaume; Moguédec, Gilles Le; Wang, Su; Tayeh, Ashraf; Soldati, Laurent; Serrate, Bruno; Estoup, Arnaud; Facon, Benoît

doi:10.1007/s10530-016-1179-1

Cited by 10 publications

(9 citation statements)

References 35 publications

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“…Additionally, in contrast to our artificial selection experiments where a single constant selective pressure was imposed, selection pressures in natura can be variable through time (Sakai et al 2001), which would greatly alter the phenotypic outcome of selection. Finally, the successful settlement of introduced propagules followed by demographic expansion leading to invasion is a trial and error process (Laugier et al 2016) from which we only see the winners (McKinney and Lockwood 1999). In the case of H. axyridis, multiple introductions for biological control occurred prior to invasion, and the groups that did finally invade may have been superior in some way that enabled them to escape the trade-offs we observed between time to first reproduction, lifespan and fecundity in our selection experiment.…”

Section: Experimental Selection To Study Invasion Syndromesmentioning

confidence: 99%

Selection on a single trait does not recapitulate the evolution of life-history traits seen during an invasion

Fragata¹,

Phillips²

2020

PCI Evol Biol

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Section: Experimental Selection To Study Invasion Syndromesmentioning

confidence: 99%

Selection on a single trait does not recapitulate the evolution of life-history traits seen during an invasion

Fragata¹,

Phillips²

2020

PCI Evol Biol

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“…Often those agents are hampered by inbreeding depression (Fauvergue et al, 2015;Bueno et al, 2017;Zaviezo et al, 2018), but not always (Trevisan et al, 2016;Quaglietti et al, 2017). That indeed seems to be the case in Harmonia axyridis (Pallas) Laugier et al, 2016), a biocontrol agent that has become a notorious invasive species. However, that is a hypothesis that has not yet been tested on the A. ervi system or others, to our knowledge.…”

Section: Implications For Biological Controlmentioning

confidence: 99%

“…The converse situation, high fitness in introduced populations in a novel range relative to native populations in the native range, might be explained by purging of deleterious alleles. That indeed seems to be the case in Harmonia axyridis (Pallas) Laugier et al, 2016), a biocontrol agent that has become a notorious invasive species.…”

Section: Implications For Biological Controlmentioning

confidence: 99%

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The implications of rapid eco‐evolutionary processes for biological control ‐ a review

Szűcs

Vercken

Bitume

et al. 2019

Entomologia Exp Applicata

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Novel environmental conditions experienced by introduced species can drive rapid evolution of diverse traits. In turn, rapid evolution, both adaptive and non-adaptive, can influence population size, growth rate, and other important ecological characteristics of populations. In addition, spatial evolutionary processes that arise from a combination of assortative mating between highly dispersive individuals at the expanding edge of populations and altered reproductive rates of those individuals can accelerate expansion speed. Growing experimental evidence shows that the effects of rapid evolution on ecological dynamics can be quite large, and thus it can affect establishment, persistence, and the distribution of populations. We review the experimental and theoretical literature on such eco-evolutionary feedbacks and evaluate the implications of these processes for biological control. Experiments show that evolving populations can establish at higher rates and grow larger than non-evolving populations. However, non-adaptive processes, such as genetic drift and inbreeding depression can also lead to reduced fitness and declines in population size. Spatial evolutionary processes can increase spread rates and change the fitness of individuals at the expansion front. These examples demonstrate the power of eco-evolutionary dynamics and indicate that evolution is likely more important in biocontrol programs than previously realized. We discuss how this knowledge can be used to enhance efficacy of biological control.

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“…Intraspecific hybridization between recently diverged species may be particularly beneficial in colonizing populations that pass through strong bottlenecks in population size, in turn losing genetic variation, and potentially becoming inbred (Ellstrand & Schierenbeck 2000; Dlugosch & Parker 2008; Rius & Darling 2014; Laugier et al 2016). In the planned release of specialized biological control agents, the goal is for the intentionally released population to establish and propagate (Seastedt 2015), to feed on the target host (typically an invasive weed or insect), and not shift to use other, non-target hosts.…”

Section: Introductionmentioning

confidence: 99%

Hybridization affects life-history traits and host specificity inDiorhabdaspp

Bitume¹,

Bean²,

Stahlke

et al. 2017

Preprint

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26Hybridization is an influential evolutionary process that has been viewed alternatively as an 27 evolutionary dead-end or as an important creative evolutionary force. In colonizing species, such 28 as introduced biological control agents, hybridization can negate the effects of bottlenecks and 29 genetic drift through increasing genetic variation. Such changes could be beneficial to a 30 biological control program by increasing the chances of establishment success. However, 31 hybridization can also lead to the emergence of transgressive phenotypes that could alter host 32 specificity; an important consideration when assessing potential non-target impacts of planned 33 agents. In a series of lab experiments, we investigated the effects of hybridization between three 34 species of Diorhabda released to control invasive Tamarix (saltcedar) on life history traits 35 through two generations, and through the third generation for one cross. Depending on the cross, 36 hybridization had either a positive or neutral impact on development time, adult mass, and 37 fecundity. We evaluated preference for the target (saltcedar) relative to a non-target host Tamarix 38 aphylla (athel), and found host specificity patterns varied in two of the three hybrids, 39 demonstrating the possibility for hybridization to alter host preference. Importantly, the overall 40 effects of hybridization were inconsistent by cross, leading to unpredictability in the outcome of 41 using hybrids in biological control.

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Reduced population size can induce quick evolution of inbreeding depression in the invasive ladybird Harmonia axyridis

Cited by 10 publications

References 35 publications

Selection on a single trait does not recapitulate the evolution of life-history traits seen during an invasion

Selection on a single trait does not recapitulate the evolution of life-history traits seen during an invasion

The implications of rapid eco‐evolutionary processes for biological control ‐ a review

Hybridization affects life-history traits and host specificity inDiorhabdaspp

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