Investigating the poor performance of heather beetle, Lochmaea suturalis (Thompson) (Coleoptera: Chrysomelidae), as a weed biocontrol agent in New Zealand: Has genetic bottlenecking resulted in small body size and poor winter survival?

Fowler, Simon V.; Peterson, Paul G.; Barrett, D. Paul; Forgie, Shaun A.; Gleeson, Dianne; Harman, H. M.; Houliston, Gary J.; Smith, Lindsay

doi:10.1016/j.biocontrol.2015.04.015

Cited by 14 publications

(7 citation statements)

References 32 publications

(39 reference statements)

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“…Species utilized for biological control are subject to both these processes, depending on their natural history and interactions. Newly introduced populations of biological control organisms often undergo bottlenecks, where a relatively small sample of founder individuals from a larger population is introduced into a novel environment [17,[75][76][77][78].…”

Section: Population Size Changementioning

confidence: 99%

Insights from Population Genomics to Enhance and Sustain Biological Control of Insect Pests

Sethuraman

Janzen

Weisrock

et al. 2020

Insects

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Biological control—the use of organisms (e.g., nematodes, arthropods, bacteria, fungi, viruses) for the suppression of insect pest species—is a well-established, ecologically sound and economically profitable tactic for crop protection. This approach has served as a sustainable solution for many insect pest problems for over a century in North America. However, all pest management tactics have associated risks. Specifically, the ecological non-target effects of biological control have been examined in numerous systems. In contrast, the need to understand the short- and long-term evolutionary consequences of human-mediated manipulation of biological control organisms for importation, augmentation and conservation biological control has only recently been acknowledged. Particularly, population genomics presents exceptional opportunities to study adaptive evolution and invasiveness of pests and biological control organisms. Population genomics also provides insights into (1) long-term biological consequences of releases, (2) the ecological success and sustainability of this pest management tactic and (3) non-target effects on native species, populations and ecosystems. Recent advances in genomic sequencing technology and model-based statistical methods to analyze population-scale genomic data provide a much needed impetus for biological control programs to benefit by incorporating a consideration of evolutionary consequences. Here, we review current technology and methods in population genomics and their applications to biological control and include basic guidelines for biological control researchers for implementing genomic technology and statistical modeling.

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Section: Population Size Changementioning

confidence: 99%

Insights from Population Genomics to Enhance and Sustain Biological Control of Insect Pests

Sethuraman

Janzen

Weisrock

et al. 2020

Insects

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“…Nevertheless, there is evidence that the low success of some biological control programs could be due to loss of genetic variability (Fauvergue et al, 2012;Fowler et al, 2015;Homchan et al, 2014;Stouthamer et al, 1992;Taylor et al 2011). Thus, natural enemies are suitable biological models to investigate the biology of small populations, which can be useful for the development of mass-rearing protocols and introduction strategies (Fauvergue et al, 2012;Hufbauer and Roderick, 2005).…”

Section: Introductionmentioning

confidence: 99%

Genetic analyses and occurrence of diploid males in field and laboratory populations of Mastrus ridens (Hymenoptera: Ichneumonidae), a parasitoid of the codling moth

et al. 2016

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The parasitoid wasp Mastrus ridens (Hymenoptera: Ichneumonidae) is a particularly well-suited biological model to document the history and evolution of populations used in classical biological control, repeatedly moved from laboratory to laboratory worldwide and introduced in various environments. This specialist ectoparasitoid of the codling moth was first imported from Kazakhstan to the USA in the 1990's, and then sent to Argentina, Chile and New Zealand. More recently, it was sent to Australia and France from other laboratory colonies, and imported again from field collections in Kazakhstan to Chile. Here, we used DNA sequencing to confirm the taxonomic identity of several populations used for biological control worldwide, and developed microsatellite markers for population genetics studies. A multiplex PCR amplifying 11 polymorphic markers was designed. These markers were used to compare the genetic diversity of laboratory and field populations and evaluate genetic differentiation between them. Results showed that laboratory populations with the longest rearing history had lower genetic diversity. Moreover, the genotyping of males with the markers revealed the occurrence of diploid males, which was further confirmed by flow cytometry, suggesting complementary sex determination (CSD) in this species. The percentage of diploid males in the populations ranged from 4% to 25% and were negatively correlated with diversity indices, which is consistent with a single-locus CSD and genetic bottlenecks in laboratory rearings. Molecular tools proved to be suitable and reliable for genetic diversity analyses in M. ridens, and should be implemented more frequently in classical biological control programs.

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“…Of them, elytral length has been frequently used for studies of coleopteran body size (e.g., Schmitz et al 2000 , Smith et al 2000 , Hernández et al 2011 , Knapp and Uhnava 2014 ). The other three have also been shown to be relevant with body size ( Cook 1993 , Smith et al 2000 , Fowler et al 2015 ). As we did not know which trait(s) would be most reasonable for rice water weevil, we first measured each of them and then screened for the best one using principal component analysis (see Statistical Analysis).…”

Section: Methodsmentioning

confidence: 99%

Variation of Body Size in Rice Water Weevil (Coleoptera: Curculionidae) and Its Associations with Population Biology

Huang

Jiang

et al. 2018

Journal of Insect Science

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Life history characteristics help us to determine the ability of invasive species to establish and thrive in an exotic environment. However, so far, there have been very few reports concerning geographic variation in the body size of invasive insects and the associations between body size variation and population biology. In this study, we surveyed the geographic variation in body size of an invasive agricultural pest, the rice water weevil Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in China. Its body size variation was found to follow Bergmann’s rule, a size cline related to latitude/altitude in which weevils tended to be larger in higher latitude/altitude localities. Moreover, using adults of different body size within populations, we also characterized the relationship between body size and some population traits of this weevil, including reproduction, food consumption, cold tolerance, and agility. The results showed that, large and mid-size adults (within populations) tended to consume more rice leaves, and larger adults also laid more and longer eggs, when compared with smaller adults. However, smaller adults appeared to have higher agility. In conclusion, body size of rice water weevil varies significantly with geography, and body size variation (within populations) may affect life history traits.

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Investigating the poor performance of heather beetle, Lochmaea suturalis (Thompson) (Coleoptera: Chrysomelidae), as a weed biocontrol agent in New Zealand: Has genetic bottlenecking resulted in small body size and poor winter survival?

Cited by 14 publications

References 32 publications

Insights from Population Genomics to Enhance and Sustain Biological Control of Insect Pests

Insights from Population Genomics to Enhance and Sustain Biological Control of Insect Pests

Genetic analyses and occurrence of diploid males in field and laboratory populations of Mastrus ridens (Hymenoptera: Ichneumonidae), a parasitoid of the codling moth

Variation of Body Size in Rice Water Weevil (Coleoptera: Curculionidae) and Its Associations with Population Biology

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