Distribution and genetic variation of Reticulitermes (Isoptera: Rhinotermitidae) in Portugal

Nobre, Tânia; Nunes, Lina; Eggleton, Paul; Bignell, David E.

doi:10.1038/sj.hdy.6800820

Cited by 18 publications

(23 citation statements)

References 22 publications

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“…Introduction events in the natural environment can be difficult to detect, especially if they occurred long ago and close together (Nobre et al. 2006). …”

Section: Discussionmentioning

confidence: 99%

Subterranean termite phylogeography reveals multiple postglacial colonization events in southwestern Europe

Lefebvre

Vargo

Zimmermann

et al. 2016

Ecology and Evolution

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A long‐standing goal of evolutionary biology is to understand how paleoclimatic and geological events shape the geographical distribution and genetic structure within and among species. Using a diverse set of markers (cuticular hydrocarbons, mitochondrial and nuclear gene sequences, microsatellite loci), we studied Reticulitermes grassei and R. banyulensis, two closely related termite species in southwestern Europe. We sought to clarify the current genetic structure of populations that formed following postglacial dispersal from refugia in southern Spain and characterize the gene flow between the two lineages over the last several million years. Each marker type separately provided a fragmented picture of the evolutionary history at different timescales. Chemical analyses of cuticular hydrocarbons and phylogenetic analyses of mitochondrial and nuclear genes showed clear separation between the species, suggesting they diverged following vicariance events in the Late Miocene. However, the presence of intermediate chemical profiles and mtDNA introgression in some Spanish colonies suggests ongoing gene flow. The current genetic structure of Iberian populations is consistent with alternating isolation and dispersal events during Quaternary glacial periods. Analyses of population genetic structure revealed postglacial colonization routes from southern Spain to France, where populations underwent strong genetic bottlenecks after traversing the Pyrenees resulting in parapatric speciation.

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“…Introduction events in the natural environment can be difficult to detect, especially if they occurred long ago and close together (Nobre et al. 2006). …”

Section: Discussionmentioning

confidence: 99%

Subterranean termite phylogeography reveals multiple postglacial colonization events in southwestern Europe

Lefebvre

Vargo

Zimmermann

et al. 2016

Ecology and Evolution

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“…It is known that independent colonies of Reticulitermes formed by primary reproductive pairs can divide by budding after some time. Isolation mechanisms may differentiate these colonies from their ancestor and give rise to different haplotypes at that location (Nobre et al 2006).…”

Section: R Flavipesmentioning

confidence: 99%

Species Diversity and Intraspecific Genetic Variation of Reticulitermes (Isoptera: Rhinotermitidae) Subterranean Termites in Woodland and Urban Environments of Missouri

Pinzón

Houseman²

2009

Annals of the Entomological Society of America

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We examined the diversity, habitat preferences, and intraspecific variation of Reticulitermes (Isoptera: Rhinotermitidae) populations within Missouri. Approximately 600 subterranean termite colonies were sampled from paired urban and woodland environments plus home infestations throughout the state. Samples were first identified to species using morphological characters and morphometrics. In addition, a portion of ≈428 bp from the 16S rRNA from 365 samples was sequenced to confirm morphology-based species identifications and to describe intraspecific genetic variability of Reticulitermes populations in Missouri. Reticulitermes flavipes (Kollar), Reticulitermes virginicus (Banks), Reticulitermes tibialis Banks, and Reticulitermes hageni Banks were found in Missouri. Twenty-one haplotypes of R.flavipes were identified, which represents one of the highest haplotype diversities reported for this species from a single state. Moreover, nine of these 21 haplotypes have not been reported in the United States before this study. Three haplotypes of R. hageni, five haplotypes of R. tibialis, and four haplotypes of R. virginicus were identified. The most abundant haplotypes of R.flavipes and R. hageni occur in woodlands, urban environments, and home infestations, suggesting a probable local origin for most of the subterranean termite infestations occurring in Missouri.

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“…Furthermore, 20 COII haplotypes (527 bp) were observed along a 640-km north–south transect in Portugal (Nobre et al. 2006), and a recent study detected more than 22 COI-COII haplotypes on the Iberian Peninsula and Morocco (Lefebvre et al. submitted).…”

Section: Discussionmentioning

confidence: 94%

“…2004; Lefebvre T., Kutnik M., Zimmermann M., Dupont S., Vargo E.L. and Bagnères A.-G., submitted), as well as colonies occurring along a 640-km north–south transect in Portugal (Nobre et al. 2006). However, studies of historical gene flow do not necessarily reveal contemporaneous gene flow, particularly that which occurs in human-shaped landscapes or in response to long-standing geographical barriers, such as the Pyrenees.…”

Section: Introductionmentioning

confidence: 99%

Spatial structuring of the population genetics of a European subterranean termite species

Bankhead-Dronnet

Perdereau

Kutnik

et al. 2015

Ecology and Evolution

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In population genetics studies, detecting and quantifying the distribution of genetic variation can help elucidate ecological and evolutionary processes. In social insects, the distribution of population-level genetic variability is generally linked to colony-level genetic structure. It is thus especially crucial to conduct complementary analyses on such organisms to examine how spatial and social constraints interact to shape patterns of intraspecific diversity. In this study, we sequenced the mitochondrial COII gene for 52 colonies of the subterranean termite Reticulitermes grassei (Isoptera: Rhinotermitidae), sampled from a population in southwestern France. Three haplotypes were detected, one of which was found exclusively in the southern part of the study area (near the Pyrenees). After genotyping 6 microsatellite loci for 512 individual termites, we detected a significant degree of isolation by distance among individuals over the entire range; however, the cline of genetic differentiation was not continuous, suggesting the existence of differentiated populations. A spatial principal component analysis based on allele frequency data revealed significant spatial autocorrelation among genotypes: the northern and southern groups were strongly differentiated. This finding was corroborated by clustering analyses; depending on the randomized data set, two or three clusters, exhibiting significant degrees of differentiation, were identified. An examination of colony breeding systems showed that colonies containing related neotenic reproductives were prevalent, suggesting that inbreeding may contribute to the high level of homozygosity observed and thus enhance genetic contrasts among colonies. We discuss the effect of evolutionary and environmental factors as well as reproductive and dispersal modes on population genetic structure.

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Distribution and genetic variation of Reticulitermes (Isoptera: Rhinotermitidae) in Portugal

Cited by 18 publications

References 22 publications

Subterranean termite phylogeography reveals multiple postglacial colonization events in southwestern Europe

Subterranean termite phylogeography reveals multiple postglacial colonization events in southwestern Europe

Species Diversity and Intraspecific Genetic Variation of Reticulitermes (Isoptera: Rhinotermitidae) Subterranean Termites in Woodland and Urban Environments of Missouri

Spatial structuring of the population genetics of a European subterranean termite species

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