Morphological and genetic variation of Melolontha spp. from pine stands with different composition and proportion of admixed tree species

Masternak, Katarzyna; Okoń, Sylwia; Kamola, Marek; Ociepa, Tomasz; Nucia, Aleksandra; Kowalczyk, Krzysztof

doi:10.1007/s10342-022-01464-6

Cited by 4 publications

(2 citation statements)

References 44 publications

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“…This con rms recent results on the discrimination of these species based on single nucleotide polymorphism of mitochondrial DNA (Pedrazzini et al 2021). Our estimates of genetic diversity parameters revealed higher mean numbers of alleles, allelic richness, H O and H E for Mm populations compared to Mh populations, providing a more detailed picture of heterozygosity for the studied species compared to the results of Masternak et al (2022), in which both species had similar and moderate levels of heterozygosity. Yet the latter study was based on inter simple sequence repeat (ISSR) markers, where utility and polymorphism are lower than microsatellites.…”

Section: Number Of Migrantssupporting

confidence: 88%

Outbreaks of cockchafers – how do genetic population structures of Melolontha melolontha and M. hippocastani differ?

Niemczyk¹,

Tereba²,

Skrzecz³

et al. 2023

Preprint

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Cockchafers Melolontha spp. are polyphagous root pests and outbreak species of considerable economic importance to forestry in Europe. However, knowledge about genetic diversity among and between populations of cockchafers is far from sufficient. In this study, we fill several gaps in the knowledge of genetic population structure and the intensity of gene flow between Melolontha melolontha (Mm) and M. hippocastani (Mh). Specifically, we used microsatellite markers of 421 imagines from three main outbreak areas in Poland. Our study revealed some differences in polymorphism and population structuration between the two species. Mm was characterized by higher polymorphism and some evidence of population structure, while Mh did not show population structuring, which may indicate that these two species have undergone different historical events. It is likely that only Mm experienced a reduction in population size but both species currently have high effective population sizes - likely as a result of an ongoing outbreak. A number of ~ 10 migrants per generation allows gene flow and maintains equilibrium in the population. Our study also revealed some important differences in migratory behavior between the sexes, with male cockchafers making more frequent long-distance flights. Current ecological and anthropogenic changes that alter the quantity and quality of the food base appear to favor the fecundity, development and dispersal of cockchafers. Our study adds cockchafers to the list of outbreak species with available genetic information. This information can be an important component of effective management strategies and a foundation for understanding and predicting the evolution of these species.

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Section: Number Of Migrantssupporting

confidence: 88%

Outbreaks of cockchafers – how do genetic population structures of Melolontha melolontha and M. hippocastani differ?

Niemczyk¹,

Tereba²,

Skrzecz³

et al. 2023

Preprint

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show abstract

“…and for developing a SNP‐based tool to discriminate M. melolontha from M. hippocastani (Giannoulis et al, 2011 ; Pedrazzini et al, 2021 ). Furthermore, microsatellite markers and CO1 sequences have been used to investigate the genetic variation in M. melolontha and M. hippocastani in five pine forests from central and eastern Poland, which revealed no population differentiation for neither species (Masternak et al, 2022 ). Despite the previously mentioned studies, to our knowledge, there are currently no genomic studies based on high‐resolution molecular markers on Melolontha spp.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal patterns in the population genomics of the European cockchafer Melolontha melolontha in the Alpine region

Pedrazzini,

Strasser,

Zemp

et al. 2023

Evolutionary Applications

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The European cockchafer Melolontha melolontha is an agricultural pest in many European countries. Populations have a synchronized 3 or 4 years life cycle, leading to temporally isolated populations. Despite the economic importance and availability of comprehensive historical as well as current records on cockchafer occurrence, population genomic analyses of M. melolontha are missing. For example, the effects of geographic separation caused by the mountainous terrain of the Alps and of temporal isolation on the genomic structure of M. melolontha still remain unknown. To address this gap, we genotyped 475 M. melolontha adults collected during 3 years from 35 sites in a central Alpine region. Subsequent population structure analyses discriminated two main genetic clusters, i.e., the South Tyrol cluster including collections located southeast of the Alpine mountain range, and a northwestern alpine cluster with all the other collections, reflecting distinct evolutionary history and geographic barriers. The “passo di Resia” linking South and North Tyrol represented a regional contact zone of the two genetic clusters, highlighting genomic differentiation between the collections from the northern and southern regions. Although the collections from northwestern Italy were assigned to the northwestern alpine genetic cluster, they displayed evidence of admixture with the South Tyrolean genetic cluster, suggesting shared ancestry. A linear mixed model confirmed that both geographic distance and, to a lower extent, also temporal isolation had a significant effect on the genetic distance among M. melolontha populations. These effects may be attributed to limited dispersal capacity and reproductive isolation resulting from synchronized and non‐synchronized swarming flights, respectively. This study contributes to the understanding of the phylogeography of an organism that is recognized as an agricultural problem and provides significant information on the population genomics of insect species with prolonged temporally shifted and locally synchronized life cycles.

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Global species diversity, bioecology and management of white grubs in crops: a review

Amizhthini,

Yasodha,

Roseleen

et al. 2024

Int J Trop Insect Sci

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Morphological and genetic variation of Melolontha spp. from pine stands with different composition and proportion of admixed tree species

Cited by 4 publications

References 44 publications

Outbreaks of cockchafers – how do genetic population structures of Melolontha melolontha and M. hippocastani differ?

Outbreaks of cockchafers – how do genetic population structures of Melolontha melolontha and M. hippocastani differ?

Spatial and temporal patterns in the population genomics of the European cockchafer Melolontha melolontha in the Alpine region

Global species diversity, bioecology and management of white grubs in crops: a review

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