The Interspecific Hemelytra Differences Among Mepraia Species Males (Hemiptera, Reduviidae:Triatominae) in Chile

Frías-Lasserre, Daniel; González, Christian R.; Reyes, Carolina; Alvarado, Alberto Lecaros

doi:10.1093/jme/tjy119

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…The studies on geographical distribution (Campos-Soto et al, 2020), molecular data (Campos-Soto et al, 2013;Campos-Soto et al, 2015;Campos-Soto et al, 2022), morphology (Campos-Soto et al, 2011;Frıás-Lasserre et al, 2018;Frıás-Lasserre et al, 2019), and cytogenetics Frıás-Lasserre et al, 2019) provide support for the three species of Mepraia. However, although phylogenies with few genes support the described taxa (Calleros et al, 2010;Campos-Soto et al, 2013), there is no consensus on the genus diversification process.…”

Section: Introductionmentioning

confidence: 82%

Transcriptome-based phylogenomic analysis reveals evidence of ancient hybridization events in the Mepraia genus (Hemiptera: Reduviidae: Triatominae)

et al. 2023

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IntroductionThe Mepraia genus is composed of three endemic species in Chile, namely Mepraia spinolai, Mepraia gajardoi, and Mepraia parapatrica, all capable of transmitting the causative agent of Chagas disease. Although species divergence within this genus is supported by morphological, molecular, and geological evidence, it has never been validated by genome-wide data.MethodsIn this sense, a pioneering phylogenomic study was conducted using transcriptome data of the three species, aiming to infer robust phylogenies and evaluate the impact of interspecific gene flow on the evolution of these insects. Our transcriptomes were used to robustly infer the phylogenetic relationships, employing multi-species coalescent and supermatrix approaches, as well as to investigate the occurrence of introgression.Results and discussionThe inferred phylogenies support the monophyly of the three described taxa and infer divergence times, although gene trees display high levels of discordance. Our results indicate widespread introgression among Mepraia lineages. Thus, our results support that Mepraia diversification occurred in a short period resulting in reticulate phylogenies and low genetic diversity. Additionally, we obtained evidence of introgression suggesting that ancient hybridization has had a major role in the evolution of the three Mepraia species.

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Section: Introductionmentioning

confidence: 82%

Transcriptome-based phylogenomic analysis reveals evidence of ancient hybridization events in the Mepraia genus (Hemiptera: Reduviidae: Triatominae)

et al. 2023

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“…from the recently described R. montenegrensis and R. marabaensis [37,38]; more accurate descriptions of the known distribution ranges would also help in this case-and probably in others. Finally, incorporating intraspecific phenotypic variation, perhaps through richer descriptions and/or multiple pictures (e.g., a small 'photo gallery' for each species), would probably help improve TRIATODEX performance for at least some species-such as, for example, the phenotypically variable T. infestans, T. brasiliensis, T. dimidiata, T. rubrovaria, T. protracta, Mepraia spp., P. geniculatus, or R. ecuadoriensis [1,16,34,[67][68][69][70][71].…”

Section: Prospectsmentioning

confidence: 99%

TriatoDex, an electronic identification key to the Triatominae (Hemiptera: Reduviidae), vectors of Chagas disease: Development, description, and performance

Gurgel-Gonçalves

Abad‐Franch

Almeida³

et al. 2021

PLoS ONE

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Correct identification of triatomine bugs is crucial for Chagas disease surveillance, yet available taxonomic keys are outdated, incomplete, or both. Here we present TriatoDex, an Android app-based pictorial, annotated, polytomous key to the Triatominae. TriatoDex was developed using Android Studio and tested by 27 Brazilian users. Each user received a box with pinned, number-labeled, adult triatomines (33 species in total) and was asked to identify each bug to the species level. We used generalized linear mixed models (with user- and species-ID random effects) and information-theoretic model evaluation/averaging to investigate TriatoDex performance. TriatoDex encompasses 79 questions and 554 images of the 150 triatomine-bug species described worldwide up to 2017. TriatoDex-based identification was correct in 78.9% of 824 tasks. TriatoDex performed better in the hands of trained taxonomists (93.3% vs. 72.7% correct identifications; model-averaged, adjusted odds ratio 5.96, 95% confidence interval [CI] 3.09–11.48). In contrast, user age, gender, primary job (including academic research/teaching or disease surveillance), workplace (including universities, a reference laboratory for triatomine-bug taxonomy, or disease-surveillance units), and basic training (from high school to biology) all had negligible effects on TriatoDex performance. Our analyses also suggest that, as TriatoDex results accrue to cover more taxa, they may help pinpoint triatomine-bug species that are consistently harder (than average) to identify. In a pilot comparison with a standard, printed key (370 tasks by seven users), TriatoDex performed similarly (84.5% correct assignments, CI 68.9–94.0%), but identification was 32.8% (CI 24.7–40.1%) faster on average–for a mean absolute saving of ~2.3 minutes per bug-identification task. TriatoDex holds much promise as a handy, flexible, and reliable tool for triatomine-bug identification; an updated iOS/Android version is under development. We expect that, with continuous refinement derived from evolving knowledge and user feedback, TriatoDex will substantially help strengthen both entomological surveillance and research on Chagas disease vectors.

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“…Nevertheless, the genus Mepraia, comprising M. gajardoi, M. parapatrica, and M. spinolai , has a particular relevance as all these species have only been observed in Chile (Porter , Frias et al , Frias ). Neiva and Lent (), before the middle of the last century, considered this genus as monotypic and “Chilean triatomids of the highest interest.” The three species that have been found infected with T. cruzi in wild environments (Egãna et al ), show a conspicuous wing polymorphism: all females are micropterous, M. gajardoi males are brachipterous, M. parapatrica males are brachipterous or macropterous, and M. spinolai are brachipterous, macropterous, or micropterous (Frias , Frias‐Lasserre et al ). Given such inter‐ and intraspecific wing discrepancy in Mepraia , studies on their distribution are necessary to verify and evaluate these characters as well as to record new points of occurrence of the three species in Chile.…”

Section: Information On Collections Of Three Species Of Mepraia In Chmentioning

confidence: 99%

New records of Mepraia (Hemiptera, Reduviidae, Triatominae) in Chile

Rosa

Oliveira

Laserre

2019

Journal of Vector Ecology

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The Interspecific Hemelytra Differences Among Mepraia Species Males (Hemiptera, Reduviidae:Triatominae) in Chile

Cited by 3 publications

References 17 publications

Transcriptome-based phylogenomic analysis reveals evidence of ancient hybridization events in the Mepraia genus (Hemiptera: Reduviidae: Triatominae)

Transcriptome-based phylogenomic analysis reveals evidence of ancient hybridization events in the Mepraia genus (Hemiptera: Reduviidae: Triatominae)

TriatoDex, an electronic identification key to the Triatominae (Hemiptera: Reduviidae), vectors of Chagas disease: Development, description, and performance

New records of Mepraia (Hemiptera, Reduviidae, Triatominae) in Chile

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