Origin of a haplodiploid beetle lineage

Normark, Benjamin B.; Jordal, Bjarte H.; Farrell, Brian D.

doi:10.1098/rspb.1999.0916

Cited by 137 publications

(113 citation statements)

References 28 publications

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“…Furthermore, the breeding strategies of ambrosia beetles are highly conducive to establishment. Many ambrosia beetles are inbreeding and so do not face problems with mate location or inbreeding depression, and can potentially start a new population from a single fertilized female (Kirkendall 1993;Normark et al 1999). …”

Section: Anthropogenic Effectsmentioning

confidence: 99%

Anthropogenic effects on interaction outcomes: examples from insect-microbial symbioses in forest and savanna ecosystems

et al. 2011

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The influence of humans on ecosystem dynamics has been, and continues to be, profound. Anthropogenic effects are expected to amplify as human populations continue to increase. Concern over these effects has given rise to a large number of studies focusing on impacts of human activities on individual species or on biotic community structure and composition. Lacking are studies on interactions, particularly mutualisms. Because of the role of mutualisms in ecosystem stability, such studies are critically needed if we are to begin to better understand and predict the responses of ecosystems to anthropogenic change. Most organisms are involved in at least one mutualism, and many in several. Mutualisms facilitate the ability of partners to exploit particular habitats and resources, and play a large role in determining ecological boundaries. When change disrupts, enhances, or introduces new organisms into a mutualism, the outcome and stability of the original partnership(s) is altered as are effects of the symbiosis on the community and ecosystem as a whole. In this paper, using examples from six microbe-insect mutualisms in forest and savanna settings, we showcase how varied and complex the responses of mutualisms can be to an equally varied set of anthropogenic influences. We also show how alterations of mutualisms may ramify throughout affected systems. We stress that researchers must be cognizant that many observed changes in the behaviors, abundances, and distributions of organisms due to human activities are likely to be mediated by mutualists which may alter predictions and actual outcomes in significant ways.

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Section: Anthropogenic Effectsmentioning

confidence: 99%

Anthropogenic effects on interaction outcomes: examples from insect-microbial symbioses in forest and savanna ecosystems

et al. 2011

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“…Amplification of fragments of a widely used animal barcode, mitochondrial Cytochrome Oxidase I (COI) gene, was performed using primer pairs C1-J-2183 and TL2-N-3014 [29]. Additionally, EF1-α and Internal Transcribed Spacer 1 (ITS1) nuclear markers, also frequently used in phylogenetic studies of insects, were amplified using primer pairs EFs149 and EFα1R [30,31] and ITS1 and ITS2 [32]. The concentration of the reagents used for the amplification of COI, ITS1 and EF1-α markers and the cycling profile for PCR have been described previously [33,34].…”

Section: Laboratory Proceduresmentioning

confidence: 99%

Molecular barcoding for central-eastern European Crioceris leaf-beetles (Coleoptera: Chrysomelidae)

et al. 2011

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Among Crioceris leaf-beetles, the two most widespread species (Crioceris asparagi and C. duodecimpunctata) are serious invasive plant pests, while another two (C. quatuordecimpunctata and C. quinquepunctata) are rare species restricted to steppe-like habitats in Eurasia. The aim of the research was to check the genetic distinctiveness of these four species and develop barcodes for their molecular identification using the mitochondrial Cytochrome Oxidase I (COI) gene and two nuclear markers: Elongation Factor 1-α (EF1-α) and Internal Transcribed Spacer 1 (ITS1). The identification of each species was possible and reliable with the use of COI and ITS1 markers. EF1-α was omitted in analyses due to its high level of heterozygosity (presence of multiple PCR products). C. duodecimpunctata and C. quatuordecimpunctata were shown to be sister taxa, but the similar genetic distances between all of the species indicate that these species originated almost simultaneously from a common ancestor. Identification of two separate clades in populations of C. quatuordecimpunctata suggested that the clades are isolated and can be considered as separate conservation units.

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“…Recently, data obtained from sequencing mitochondrial genes, in particular the cytochrome I gene (COI) have been used to resolve phylogenetic relationships in bark beetles, particularly in the genera Ips Cognato & Sperling, 2000), Dendroctonus (Kelley & Farell, 1998) and for determining the origin of a haplodiploid scolytid lineage (Normark et al, 1999). Further more, mitochondrial gene sequences are sufficiently variable to be used in the phylogeographic analyses of Dendroctonus brevicomis (Kelley et al, 1999), Ips pini (Cognato et al, 1999) and Ips typographus (Stauffer et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships between the European and Asian eight spined larch bark beetle populations (Coleoptera, Scolytidae) inferred from DNA sequences and fungal associates

Stauffer¹,

Kirisits²,

Nussbaumer³

et al. 2001

Eur. J. Entomol.

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Abstract. The eight spined larch bark beetles infest various species of Larix in Europe and Asia. Ips cembrae is the only Ips species with larch as its main host. Ips subelongatus, Ips fallax, Ips shinanonensis and Ips cembrae var. engadinensis are treated as syno nyms of I. cembrae. These three putative species and the one variety are distinguished by their host tree and geographic distribution, as it is not possible to distinguish them on the basis of morphological differences. Beetles were collected from European and Asian populations, and from hosts and geographic areas where the species were first found and described and in their natural ranges of dis tribution. These beetles were used to study the phylogenetic relationships of the eight spined larch bark beetles. A region of the mito chondrial gene was analysed and the blue-stain fungi associated with I. cembrae in Europe were investigated and compared with those recorded as associated with the larch bark beetle in Japan. Only minor sequence differences were detected between the popula tions in Europe and Asia. However, the European populations differed by 4.3% from the Asian populations. The phylogenetic analysis placed the European and Asian haplotypes in significantly distinct clusters. This distinction was supported by the finding of an insertion/deletion in a non-coding region of the mitochondrial DNA. Furthermore, there are differences in the fungi associated with the eight spined larch bark beetles in Europe and Japan. The results suggest that the I. cembrae complex contains at least two taxa: I. cembrae infesting larch in Europe and I. subelongatus infesting larch in Asia.

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Origin of a haplodiploid beetle lineage

Cited by 137 publications

References 28 publications

Anthropogenic effects on interaction outcomes: examples from insect-microbial symbioses in forest and savanna ecosystems

Anthropogenic effects on interaction outcomes: examples from insect-microbial symbioses in forest and savanna ecosystems

Molecular barcoding for central-eastern European Crioceris leaf-beetles (Coleoptera: Chrysomelidae)

Phylogenetic relationships between the European and Asian eight spined larch bark beetle populations (Coleoptera, Scolytidae) inferred from DNA sequences and fungal associates

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