Population Structure, Genetic Variability, and Gene Flow of the Bean Leaf Beetle,<i>Cerotoma trifurcata</i>, in the Midwestern United States

Tiroesele, Bamphitlhi; Skoda, S.; Hunt, Thomas E.; Lee, Donald J.; Molina-Ochoa, Jaime; Foster, John E.

doi:10.1673/031.014.62

Cited by 9 publications

(5 citation statements)

References 33 publications

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“…Other studies on different beetle species have found similar levels of variation explained by geographic location and, although it is difficult to compare across different species and systems, similar conclusions were made that this shows weak population structuring (Lagisz, Wolff, Sanderson, & Laskowski, 2010;Tiroesele et al, 2014).…”

Section: Discussionsupporting

confidence: 57%

“…The north‐south divide explained only a small proportion of genetic variation (6.45%), while the sampling within managed and unmanaged areas explained even less (1.08%). Other studies on different beetle species have found similar levels of variation explained by geographic location and, although it is difficult to compare across different species and systems, similar conclusions were made that this shows weak population structuring (Lagisz, Wolff, Sanderson, & Laskowski, ; Tiroesele et al., ). While beetle diversity was higher in managed areas, likely due to the larger spatial area from which the beetles were sampled, these differences were very slight and could only explain a significant amount of variation in the southern region.…”

Section: Discussionmentioning

confidence: 55%

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Minimal effects on genetic structuring of a fungus‐dwelling saproxylic beetle after recolonisation of a restored forest

Zytynska

Doerfler

Goßner

et al. 2018

Journal of Applied Ecology

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Habitat restoration aims to improve local habitat conditions for threatened species. While such restorations are widespread, rigorous evaluations of their success are rare. This is especially true of those considering species dynamics. Increasingly, deadwood is a target for forest restoration as many species directly and indirectly depend on this resource. In a broadleaf forest in southern Germany, we explored the effect of landscape‐wide deadwood restoration on the population genetic structure of the specialist fungus‐dwelling saproxylic beetle Bolitophagus reticulatus. Before 2003, the northern area of this forest was intensively logged for more than half a century, while the southern part was less intensively managed. This drove populations of the host fungus Fomes fomentarius, and consequently the beetle, to local extinction in the northern part. Only after the first decade of restoration were both the fungus and its beetles present across all areas of the forest. Using 17 newly developed microsatellite loci, we show that these beetles exhibit population genetic structuring, mainly influenced by the north‐south divide. However, the low degree of isolation‐by‐distance, and the low relatedness of beetles collected from the same trees or fungus, shows that strong dispersal ability is facilitating the recolonisation of these forests on the scale of tens of kilometers. In another 10 years, it is likely that the population will show even less genetic structuring. Synthesis and applications. Through the recolonisation of the fungus Fomes fomentarius and the fungus‐dwelling beetle Bolitophagus reticulatus after deadwood restoration, we demonstrate that, while there are many discussions on the optimal spatial distribution of deadwood, just the presence of deadwood can be sufficient to enable recolonisations of specific species. As long as some relict populations of these species are embedded in a once intensively managed forest, increased deadwood (amount and diversity) anywhere will benefit recolonisation of the habitat. However, increasing deadwood diversity should also be encouraged to benefit even more species.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 55%

Minimal effects on genetic structuring of a fungus‐dwelling saproxylic beetle after recolonisation of a restored forest

Zytynska

Doerfler

Goßner

et al. 2018

Journal of Applied Ecology

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“…There have been no assessments of CFM population structure at wider geographic scales, thus limiting effective monitoring and risk assessment across the canola producing region. Population genetics is a powerful tool for integrated pest management, and can inform effective management strategies by elucidating how genetic diversity, population size, and habitat connectivity influence population dynamics (Rollins et al 2006;Tiroesele et al 2014;Pélissié et al 2018;Combset al 2019). Genetic assessments of population dynamics are particularly important when organisms lack comprehensive historical occurrence records (e.g.…”

Section: Introductionmentioning

confidence: 99%

Disjunction between canola distribution and the genetic structure of its recently described pest, the canola flower midge (Contarinia brassicola)

Campbell

Dupuis

Holowachuk

et al. 2020

Preprint

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Population genomics is a useful tool in the integrated pest management toolbox for elucidating population dynamics, demography, and histories of invasion. However, next-generation sequencing approaches can be hampered by low DNA input from small organisms, such as insect pests. Here, we use a restriction-site associated DNA sequencing approach combined with whole-genome amplification to assess genomic population structure of a newly described pest of canola, the diminutive canola flower midge, Contarinia brassicola. We find that whole-genome amplification prior to library preparation caused a reduction in the overall number of loci sequenced and an increase in overall sequencing depth but had no discernable impact on genotyping consistency for population genetic analysis. Clustering analyses recovered little geographic structure across the main canola production region, but differentiated several geographically disparate populations at edges of the agricultural zone. Given a lack of alternative hypotheses for this pattern, we suggest these data support alternative hosts for this species and thus our canola-centric view of this midge as a pest has limited our understanding of its biology. These results speak to the need for increased surveying effort across multiple habitats and other potential hosts within Brassicaceae, to elucidate both our ecological and evolutionary knowledge of this species as well as potential management implications.

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“…Population genetics is a powerful tool for integrated pest management and informs effective management strategies by elucidating how genetic diversity, population size, and habitat connectivity influence population dynamics (Combs et al., 2019; Pélissié et al., 2018; Rollins et al., 2006; Tiroesele et al., 2014). Genetic assessments of population dynamics are particularly important when organisms lack comprehensive historical occurrence records (e.g., Mori et al., 2016) or are not easily observed in the field, for example, due to their small size, short life span, or concealed life stages.…”

Section: Introductionmentioning

confidence: 99%

Disjunction between canola distribution and the genetic structure of its recently described pest, the canola flower midge (Contarinia brassicola)

Campbell

Dupuis

Holowachuk

et al. 2020

Ecology and Evolution

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Population Structure, Genetic Variability, and Gene Flow of the Bean Leaf Beetle,Cerotoma trifurcata, in the Midwestern United States

Cited by 9 publications

References 33 publications

Minimal effects on genetic structuring of a fungus‐dwelling saproxylic beetle after recolonisation of a restored forest

Minimal effects on genetic structuring of a fungus‐dwelling saproxylic beetle after recolonisation of a restored forest

Disjunction between canola distribution and the genetic structure of its recently described pest, the canola flower midge (Contarinia brassicola)

Disjunction between canola distribution and the genetic structure of its recently described pest, the canola flower midge (Contarinia brassicola)

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