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Melgar S, Castellanos S, Stevens L, Monroy MAC, Dorn PL. Genetic diversity of the Chagas vector Triatoma dimidiata s.l. (Hemiptera: Reduviidae) across geographic scales in a top-priority area for control. JOURNAL OF MEDICAL ENTOMOLOGY 2024:tjae066. [PMID: 38970363 DOI: 10.1093/jme/tjae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/03/2024] [Accepted: 05/01/2024] [Indexed: 07/08/2024]
Abstract
Population genetic structure of arthropod disease vectors provides important information on vector movement and climate or other environmental variables that influence their distribution. This information is critical for data-driven vector control. In the first comprehensive study of the genetic structure of T. dimidiata s.l. (Latreille, 1811) we focus on an area of active transmission designated as a top priority for control. We examined a high number of specimens across a broad geographic area along the border of Guatemala and El Salvador including multiple spatial scales using a high number of genome-wide markers. Measuring admixture, pairwise genetic differentiation, and relatedness, we estimated the specimens represented three genetic clusters. We found evidence of movement (migration/gene flow) across all spatial scales with more admixture among locations in El Salvador than in Guatemala. Although there was significant isolation by distance, the 2 close villages in Guatemala showed either the most or least genetic variation indicating an additional role of environmental variables. Further, we found that social factors may be influencing the genetic structure. We demonstrated the power of genomic studies with a large number of specimens across a broad geographic area. The results suggest that for effective vector control movement must be considered on multiple spatial scales along with its contributing factors.
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Affiliation(s)
- Sergio Melgar
- Faculty of Chemical Sciences and Pharmacy, School of Biology, Laboratory of Applied Entomology and Parasitology (LENAP-USAC), University of San Carlos of Guatemala, Guatemala City, Guatemala, USA
| | - Salvador Castellanos
- Faculty of Chemical Sciences and Pharmacy, School of Biology, Laboratory of Applied Entomology and Parasitology (LENAP-USAC), University of San Carlos of Guatemala, Guatemala City, Guatemala, USA
| | - Lori Stevens
- Department of Biology, University of Vermont, Burlington, VT 05401, USA
| | - Marà A Carlota Monroy
- Faculty of Chemical Sciences and Pharmacy, School of Biology, Laboratory of Applied Entomology and Parasitology (LENAP-USAC), University of San Carlos of Guatemala, Guatemala City, Guatemala, USA
| | - Patricia L Dorn
- Department of Biological Sciences, Loyola University New Orleans, New Orleans, LA 70118, USA
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Costa MC, Moreira CJC, de Oliveira PL, Juberg J, de Castro DP, Genta FA. Sugar feeding in triatomines: a new perspective for controlling the transmission of Chagas disease. Front Physiol 2024; 15:1360255. [PMID: 38983720 PMCID: PMC11231924 DOI: 10.3389/fphys.2024.1360255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/30/2024] [Indexed: 07/11/2024] Open
Abstract
Introduction: Triatomines are vectors of Trypanosoma cruzi, the etiological agent of Chagas disease. Currently, there is no vaccine against this disease. Thus, control of the insect vector population is the main strategy available to reduce the number of cases. Triatomines are considered obligate hematophagous, but different alternative feeding behaviors were described, such as haemolymphagy or plant feeding. Methods: To determine the preference for sugar feeding in nymphs and adults of Rhodnius prolixus, the insects were exposed a piece of cotton containing bromophenol blue plus sucrose. In addition, we offered several sugars for different species of triatomines, and tested sugar meals as a route of delivery of insecticides in first-instar nymphs of R. prolixus. The effect of sugar feeding on the physiology of these different species of triatomines was recorded. Results: First instar nymphs ingested sucrose more strongly than other stages, and showed high mortality rates. In different species of triatomines, sucrose induced an ingestion, but engorgement varied according to the species. R. prolixus nymphs showed an indiscriminate intake of various sugars, with very different physiological effects. Furthermore, ingesting different combinations of insecticides + sugar significantly reduced insect survival. Discussion: In summary, we described for the first-time sugar feeding as a widespread behavior in several species of triatomines, and the possibility of the use of toxic sugar baits for the control of these vectors. The knowledge of feeding behavior in these insects can be fundamental for the development of new strategies to control Chagas disease.
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Affiliation(s)
- Mariana C. Costa
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Carlos J. C. Moreira
- Laboratório de Doenças Parasitárias, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Pedro Lagerblad de Oliveira
- Laboratório de Bioquímica de Artrópodes Hematófagos, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
| | - José Juberg
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Daniele Pereira de Castro
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
| | - Fernando Ariel Genta
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
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Cruz-Alegría IY, Santos-Hernández NG, Ruiz-Castillejos C, Ruan-Soto JF, Moreno-Rodríguez A, Flores-Villegas AL, Gutiérrez-Jiménez J, Hernández-Mijangos LA, Espinoza-Medinilla EE, Vidal-López DG, De Fuentes-Vicente JA. Ecoepidemiology of Chagas Disease in a Biological Corridor in Southeastern Mexico: A Promising Approach to Understand the Risk of Chagas Disease. J Parasitol Res 2024; 2024:4775361. [PMID: 38495541 PMCID: PMC10942820 DOI: 10.1155/2024/4775361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Ecoepidemiology is an emerging field that attempts to explain how biotic, environmental, and even social factors influence the dynamics of infectious diseases. Particularly in vector-borne diseases, the study under this approach offers us an overview of the pathogens, vectors, and hosts that coexist in a given region and their ecological determinants. As a result of this, risk predictions can be established in a changing environment and how it may impact human populations. This paper is aimed at evaluating some ecoepidemiological characteristics of Chagas disease in a natural reserve in southeastern Mexico that borders human settlements. We carry out a cross-sectional study in 2022 where we search insects manually and with light traps. We set traps for small mammals and bats and conducted interviews with the inhabitants living around the study site. We identified the presence of Triatoma dimidiata and T. huehuetenanguensis species with a percentage of TcI T. cruzi infection of 68.4% (95% CI: 66.9-69.9). Temperature and humidity were not determining factors for the probability of insect capture. Of the 108 wild mammals (Chiroptera, Rodentia, and Didelphimorphia), none was infected with T. cruzi. Knowledge about Chagas disease in nearby inhabitants is poor, and some characteristics were found on the periphery of dwellings that could offer a refuge for insect vectors. With this information, surveillance strategies can be generated in the study area that reduce the risk of transmission of T. cruzi parasite to humans, and it is expected to motivate the use of this field in future research.
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Affiliation(s)
- Ingrid Yazmin Cruz-Alegría
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | | | - Christian Ruiz-Castillejos
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - Juan Felipe Ruan-Soto
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | | | | | - Javier Gutiérrez-Jiménez
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
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4
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Gunter SM, Nelson A, Kneubehl AR, Justi SA, Manzanero R, Zielinski-Gutierrez E, Herrera C, Thompson J, Mandage R, Desale H, Maliga A, Bautista K, Ronca SE, Morey F, Fuentes RC, Lopez B, Dumonteil E, Morazan GH, Murray KO. Novel species of Triatoma (Hemiptera: Reduviidae) identified in a case of vectorial transmission of Chagas disease in northern Belize. Sci Rep 2024; 14:1412. [PMID: 38228608 PMCID: PMC10792162 DOI: 10.1038/s41598-023-50109-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/15/2023] [Indexed: 01/18/2024] Open
Abstract
Chagas disease is a leading cause of non-ischemic cardiomyopathy in endemic regions of Central and South America. In Belize, Triatoma dimidiata sensu lato has been identified as the predominate taxon but vectorial transmission of Chagas disease is considered to be rare in the country. We recently identified an acute case of vector-borne Chagas disease in the northern region of Belize. Here we present a subsequent investigation of triatomines collected around the case-patient's home. We identified yet undescribed species, closely related to Triatoma huehuetenanguensis vector by molecular systematics methods occurring in the peridomestic environment. The identification of a T. cruzi-positive, novel species of Triatoma in Belize indicates an increased risk of transmission to humans in the region and warrants expanded surveillance and further investigation.
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Affiliation(s)
- Sarah M Gunter
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA.
- William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA.
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA.
| | - Alisa Nelson
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Alexander R Kneubehl
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Silvia A Justi
- Walter Reed Biosystematics Unit, Smithsonian Institution, Museum Support Center, Suitland, MD, USA
- One Health Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
- Smithsonian Institution National Museum of Natural History, Washington, DC, USA
| | | | | | - Claudia Herrera
- Department of Tropical Medicine, Vector-Borne and Infectious Disease Research Center, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Julie Thompson
- Department of Tropical Medicine, Vector-Borne and Infectious Disease Research Center, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
- Department of Biomedical Science, School of Medicine, Tulane University, New Orleans, LA, USA
| | - Rajendra Mandage
- Department of Tropical Medicine, Vector-Borne and Infectious Disease Research Center, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Hans Desale
- Department of Tropical Medicine, Vector-Borne and Infectious Disease Research Center, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Adrianna Maliga
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Kim Bautista
- Belize Ministry of Health and Wellness, Belmopan, Belize
| | - Shannon E Ronca
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Francis Morey
- Belize Ministry of Health and Wellness, Belmopan, Belize
| | - Rafael Chacon Fuentes
- Centers for Disease Control and Prevention-Central America Region, Guatemala City, Guatemala
| | - Beatriz Lopez
- Centers for Disease Control and Prevention-Central America Region, Guatemala City, Guatemala
| | - Eric Dumonteil
- Department of Tropical Medicine, Vector-Borne and Infectious Disease Research Center, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | | | - Kristy O Murray
- Division of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
- William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, USA
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
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de Sousa PS, de Oliveira J, Ravazi A, Dos Reis YV, de Azeredo Oliveira MTV, da Rosa JA, Galvão C, Alevi KCC. Analysis of the maternal inheritance hypothesis of the exochorium in eggs from hybrids of Chagas disease vectors. Sci Rep 2024; 14:722. [PMID: 38184729 PMCID: PMC10771436 DOI: 10.1038/s41598-023-51125-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/31/2023] [Indexed: 01/08/2024] Open
Abstract
Morphological studies applied to the taxonomy of the Triatominae cover various structures (head, wing, thorax, genitalia, and eggs). Exochorial structures of hybrid eggs were characterized and compared with the parents, demonstrating that hybrids presented characteristics identical to the exochorial pattern observed in the females of the crosses, which resulted in the hypothesis that the pattern of triatomine eggs is possibly a characteristic inherited from females. Thus, we characterized the exochorium of the eggs of several triatomine hybrids and compared them with the parents, to assess the pattern of segregation and test the hypothesis of maternal inheritance. Hybrids were obtained in at least one direction from all crosses. The analysis of the exochorium of the eggs of the hybrids showed different patterns of segregation: "exclusively paternal", "predominantly maternal", "predominantly paternal", "mutual", and "differential". Curiously, none of the hybrids evaluated presented characteristics that segregated exclusively from the female parental species. Thus, we demonstrate that the hypothesis of maternal inheritance of the exochorium pattern of eggs is not valid and we emphasize the importance of alternative/combined tools (such as integrative taxonomy) for the correct identification of these insect vectors (mainly in view of possible natural hybridization events due to climate and environmental changes).
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Affiliation(s)
- Paulo Sergio de Sousa
- Institute of Biosciences (IBB), Sao Paulo State University (Unesp), Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18618-689, Brazil
| | - Jader de Oliveira
- Laboratory of Entomology in Public Health, Department of Epidemiology, Faculty of Public Health (FSP), University of Sao Paulo (USP), Avenue Dr. Arnaldo, 715, Sao Paulo, SP, 01246-904, Brazil
| | - Amanda Ravazi
- Institute of Biosciences (IBB), Sao Paulo State University (Unesp), Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18618-689, Brazil
| | - Yago Visinho Dos Reis
- Laboratory of Parasitology, School of Pharmaceutical Sciences (FCFAR), Sao Paulo State University (Unesp), Road Araraquara/Jau, Km 01, Araraquara, SP, 14801-902, Brazil
| | - Maria Tercília Vilela de Azeredo Oliveira
- Laboratory of Cell Biology, Institute of Biosciences, Humanities and Exact Sciences (IBILCE), Sao Paulo State University (Unesp), Cristovao Colombo, 2265, Sao Jose do Rio Preto, SP, 15054-000, Brazil
| | - João Aristeu da Rosa
- Laboratory of Parasitology, School of Pharmaceutical Sciences (FCFAR), Sao Paulo State University (Unesp), Road Araraquara/Jau, Km 01, Araraquara, SP, 14801-902, Brazil
| | - Cleber Galvão
- National and International Reference Laboratory On Triatomine Taxonomy, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (FIOCRUZ), Avenue Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil.
| | - Kaio Cesar Chaboli Alevi
- Laboratory of Entomology in Public Health, Department of Epidemiology, Faculty of Public Health (FSP), University of Sao Paulo (USP), Avenue Dr. Arnaldo, 715, Sao Paulo, SP, 01246-904, Brazil
- National and International Reference Laboratory On Triatomine Taxonomy, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (FIOCRUZ), Avenue Brasil, 4365, Rio de Janeiro, RJ, 21040-360, Brazil
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Moo-Millan JI, Hernández-Andrade A, May-Concha IJ, Montalvo-Balam TDJ, Arnal A, Talavera-Escalante MJ, Amblard-Rambert A, Martínez-Vega PP, Ramos-Ligonio Á, Ibarra-Cerdeña CN, Hernández-Betancourt S, Waleckx E. Temporal variation of Triatoma dimidiata abundance and infection with Trypanosoma cruzi in domestic and sylvatic habitats of rural Yucatan, Mexico. Acta Trop 2023; 248:107038. [PMID: 37839668 DOI: 10.1016/j.actatropica.2023.107038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/01/2023] [Accepted: 10/07/2023] [Indexed: 10/17/2023]
Abstract
In the Yucatan Peninsula, Mexico, Triatoma dimidiata is the main vector of Chagas disease. This is a native species in the region that principally inhabits sylvatic habitats. Nevertheless, it shows a tolerant behavior to anthropogenic disturbance, with adult bugs frequently infesting human dwellings, principally during the warm and dry season. Yet, whether the temporal variation of abundance is independent of the habitat and how this is related to the infection rate with Trypanosoma cruzi in Yucatan is still poorly understood. The objective of this study was to simultaneously analyze the temporal variations of T. dimidiata abundance and infection with T. cruzi in domestic and sylvatic habitats from two localities of rural Yucatan (Sudzal, 20°52'19″N, 88°59'20″W and Teya, 21°02'55″N, 89°04'25″W) to help for the further improvement of locally adapted strategies aimed at controlling T. cruzi vector transmission. Using community participation and a combination of different trapping techniques, we collected T. dimidiata bugs during 29 consecutive months within domestic and sylvatic habitats. We then assessed by PCR the infection of the bugs with T. cruzi. Generalized linear models were used to evaluate the effect of climatic variables on the abundance of T. dimidiata and the effect of bug sex, season and habitat on the prevalence of infection with T. cruzi. Overall, 3640 specimens of T. dimidiata were collected. We clearly observed peaks of maximum abundance in both habitats during the warm and dry season and found a negative association of bug abundance with relative humidity. The overall prevalence of infection of the bugs with T. cruzi was 15.2 %. Additionally, bugs collected in domestic habitats displayed a significantly higher prevalence of infection than sylvatic bugs (19.6% vs. 6.1 %, respectively), suggesting an increased risk of T. cruzi transmission related with anthropogenic disturbance. Our study is the first to describe the annual pattern of abundance of T. dimidiata in sylvatic habitats of rural Yucatan and constitutes a contribution to the knowledge of T. dimidiata ecology and of T. cruzi transmission cycle dynamics in the region. In Yucatan, where the use of mosquito nets has shown to be effective to limit human dwelling infestation by T. dimidiata, reinforcing the awareness of local residents about the increased risk of T. cruzi transmission during the warm and dry season when realizing activities in the sylvatic ambient should be, among others, also considered to improve control strategies and limit the risk of vector transmission.
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Affiliation(s)
- Joel Israel Moo-Millan
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Anette Hernández-Andrade
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico; Institut de Recherche pour le Développement, UMR INTERTRYP IRD, CIRAD, Université de Montpellier, Montpellier, France
| | - Irving Jesús May-Concha
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Teresa de Jesús Montalvo-Balam
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Audrey Arnal
- Institut de Recherche pour le Développement, UMR MIVEGEC Université de Montpellier, CNRS, IRD, Montpellier, France
| | - Maryrose José Talavera-Escalante
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Antoine Amblard-Rambert
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico; Institut de Recherche pour le Développement, UMR INTERTRYP IRD, CIRAD, Université de Montpellier, Montpellier, France
| | - Pedro Pablo Martínez-Vega
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico
| | - Ángel Ramos-Ligonio
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Veracruz, Mexico; ACCyC, Asociación Chagas con Ciencia y Conocimiento, A.C., Orizaba, Veracruz, Mexico
| | - Carlos Napoleón Ibarra-Cerdeña
- Departamento de Ecología Humana, Centro de Investigación y Estudios Avanzados del IPN (Cinvestav), Unidad Mérida, Mérida, Yucatán, Mexico
| | | | - Etienne Waleckx
- Laboratorio de Parasitología, Centro de Investigaciones Regionales "Dr. Hideyo Noguchi", Universidad Autónoma de Yucatán, Mérida, Mexico; Institut de Recherche pour le Développement, UMR INTERTRYP IRD, CIRAD, Université de Montpellier, Montpellier, France; ACCyC, Asociación Chagas con Ciencia y Conocimiento, A.C., Orizaba, Veracruz, Mexico.
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7
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Azevedo LMS, Cesaretto NR, de Oliveira J, Ravazi A, Dos Reis YV, Tadini SCAF, da Silva Masarin I, Borsatto KC, Galvão C, da Rosa JA, de Azeredo-Oliveira MTV, Alevi KCC. First evidence of gonadal hybrid dysgenesis in Chagas disease vectors (Hemiptera, Triatominae): gonad atrophy prevents events of interspecific gene flow and introgression. Parasit Vectors 2023; 16:390. [PMID: 37891624 PMCID: PMC10604409 DOI: 10.1186/s13071-023-06006-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Hybridization events between Triatoma spp. have been observed under both natural and laboratory conditions. The ability to produce hybrids can influence different aspects of the parent species, and may even result in events of introgression, speciation and extinction. Hybrid sterility is caused by unviable gametes (due to errors in chromosomal pairing [meiosis]) or by gonadal dysgenesis (GD). All of the triatomine hybrids analyzed so far have not presented GD. We describe here for the first time GD events in triatomine hybrids and highlight these taxonomic and evolutionary implications of these events. METHODS Reciprocal experimental crosses were performed between Triatoma longipennis and Triatoma mopan. Intercrosses were also performed between the hybrids, and backcrosses were performed between the hybrids and the parent species. In addition, morphological and cytological analyzes were performed on the atrophied gonads of the hybrids. RESULTS Hybrids were obtained only for the crosses T. mopan♀ × T. longipennis♂. Intercrosses and backcrosses did not result in offspring. Morphological analyses of the male gonads of the hybrids confirmed that the phenomenon that resulted in sterility of the hybrid was bilateral GD (the gonads of the hybrids were completely atrophied). Cytological analyses of the testes of the hybrids also confirmed GD, with no germ cells observed (only somatic cells, which make up the peritoneal sheath). CONCLUSIONS The observations made during this study allowed us to characterize, for the first time, GD in triatomines and demonstrated that gametogenesis does not occur in atrophied gonads. The characterization of GD in male hybrids resulting from the crossing of T. mopan♀ × T. longipennis♂ highlights the importance of evaluating both the morphology and the cytology of the gonads to confirm which event resulted in the sterility of the hybrid: GD (which results in no gamete production) or meiotic errors (which results in non-viable gametes).
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Affiliation(s)
- Luísa Martins Sensato Azevedo
- Laboratório de Biologia Celular, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Cristóvão Colombo 2265, 15054-000, São José Do Rio Preto, SP, Brazil
| | - Natália Regina Cesaretto
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
| | - Jader de Oliveira
- Laboratório de Entomologia em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo, SP, Brazil
| | - Amanda Ravazi
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
| | - Yago Visinho Dos Reis
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
| | - Samanta Cristina Antoniassi Fernandes Tadini
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
| | - Isabella da Silva Masarin
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
| | - Kelly Cristine Borsatto
- Laboratório de Biologia Celular, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Cristóvão Colombo 2265, 15054-000, São José Do Rio Preto, SP, Brazil
| | - Cleber Galvão
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, Sala 505, 21040-360, Rio de Janeiro, RJ, Brazil.
| | - João Aristeu da Rosa
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rodovia Araraquara-Jaú Km 1, 14801-902, Araraquara, SP, Brazil
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Laboratório de Biologia Celular, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Cristóvão Colombo 2265, 15054-000, São José Do Rio Preto, SP, Brazil
| | - Kaio Cesar Chaboli Alevi
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brazil
- Laboratório de Entomologia em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo, SP, Brazil
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, Sala 505, 21040-360, Rio de Janeiro, RJ, Brazil
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8
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Gómez-Palacio A, Pita S, Abad-Franch F, Monsalve Y, Cantillo-Barraza O, Monteiro FA, Pavan MG, Santos WS, Panzera A, Burgueño-Rodríguez G, Panzera F. Molecular and cytogenetic evidence for sibling species in the Chagas disease vector Triatoma maculata. MEDICAL AND VETERINARY ENTOMOLOGY 2023; 37:316-329. [PMID: 36543747 DOI: 10.1111/mve.12633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 12/01/2022] [Indexed: 05/18/2023]
Abstract
Triatoma maculata (Hemiptera, Reduviidae, Triatominae) occurs across dry-to-semiarid ecoregions of northern South America, where it transmits Trypanosoma cruzi, causative agent of Chagas disease. Using 207 field-caught specimens from throughout the species' range, mitochondrial(mt) DNA sequence data, and cytogenetics, we investigated inter-population genetic diversity and the phylogenetic affinities of T. maculata. Mitochondrial DNA sequence analyses (cytb and nd4) disclosed a monophyletic T. maculata clade encompassing three distinct geographic groups: Roraima formation (Guiana shield), Orinoco basin, and Magdalena basin (trans-Andean). Between-group cytb distances (11.0-12.8%) were larger than the ~7.5% expected for sister Triatoma species; the most recent common ancestor of these T. maculata groups may date back to the late Miocene. C-heterochromatin distribution and the sex-chromosome location of 45S ribosomal DNA clusters both distinguished Roraima bugs from Orinoco and Magdalena specimens. Cytb genealogies reinforced that T. maculata is not sister to Triatoma pseudomaculata and probably represents an early (middle-late Miocene) offshoot of the 'South American Triatomini lineage'. In sum, we report extensive genetic diversity and deep phylogeographic structuring in T. maculata, suggesting that it may consist of a complex of at least three sibling taxa. These findings have implications for the systematics, population biology, and perhaps medical relevance of T. maculata sensu lato.
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Affiliation(s)
- Andrés Gómez-Palacio
- Laboratorio de Investigación en Genética Evolutiva - LIGE, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Sebastián Pita
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Fernando Abad-Franch
- Núcleo de Medicina Tropical, Faculdade de Medicina, Universidade de Brasília, Brasília, Brazil
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane - Fiocruz Amazônia, Manaus, Brazil
| | - Yoman Monsalve
- Grupo de Biología y Control de Enfermedades Infecciosas - BCEI, Universidad de Antioquia - UdeA, Medellín, Colombia
| | - Omar Cantillo-Barraza
- Grupo de Biología y Control de Enfermedades Infecciosas - BCEI, Universidad de Antioquia - UdeA, Medellín, Colombia
| | - Fernando A Monteiro
- Laboratorio de Epidemiologia e Sistemática Molecular, Instituto Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | - Márcio G Pavan
- Laboratorio de Epidemiologia e Sistemática Molecular, Instituto Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Laboratorio de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | - Walter S Santos
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane - Fiocruz Amazônia, Manaus, Brazil
- Laboratório de Epidemiologia das Leishmanioses, Instituto Evandro Chagas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, Brazil
| | - Alejandra Panzera
- Howard Hughes Medical Institute, University of Maryland, College Park, Maryland, USA
| | - Gabriela Burgueño-Rodríguez
- Laboratorio de Genética Molecular Humana, Centro Universitario Regional (CENUR) Litoral Norte-Sede Salto, Universidad de la República, Salto, Uruguay
| | - Francisco Panzera
- Sección Genética Evolutiva, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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9
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Téllez-Rendón J, Esteban L, Rengifo-Correa L, Díaz-Albiter H, Huerta H, Dale C. Triatoma yelapensis sp. nov. (Hemiptera: Reduviidae) from Mexico, with a Key of Triatoma Species Recorded in Mexico. INSECTS 2023; 14:insects14040331. [PMID: 37103146 PMCID: PMC10142269 DOI: 10.3390/insects14040331] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/19/2022] [Accepted: 01/04/2023] [Indexed: 05/31/2023]
Abstract
Thirty-four species of Triatominae (Hemiptera, Reduviidae) are recorded in Mexico, Triatoma Laporte, 1832 the most speciose genus in this country. Here, we describe Triatoma yelapensis sp. nov. from the Pacific coast of Jalisco (Mexico). The most similar species to T. yelapensis sp. nov. is T. recurva (Stål, 1868), but they differ in head longitude, the proportion of labial segments, coloration pattern of corium and connexivum, spiracles location, and male genitalia. To provide statistical support for the morphological distinctiveness of the new species, we performed a geometric morphometric analysis of T. yelapensis sp. nov., T. dimidiata s.s. (Latreille, 1811), T. gerstaeckeri (Stål, 1859), and T. recurva (Stål, 1868), considering head morphology. We also provide an updated key of the genus Triatoma for species recorded in Mexico.
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Affiliation(s)
- Juan Téllez-Rendón
- Institute of Epidemiological Diagnosis and Reference (InDRE), Mexico City 01480, Mexico
| | - Lyda Esteban
- Tropical Diseases Research Center (CINTROP), Universidad Industrial de Santander, Piedecuesta 681012, Colombia
| | - Laura Rengifo-Correa
- Tropical Diseases Research Center (CINTROP), Universidad Industrial de Santander, Piedecuesta 681012, Colombia
| | - Héctor Díaz-Albiter
- Department of Health, The School of the Southern Border (ECOSUR), Villahermosa 86280, Mexico
| | - Herón Huerta
- Institute of Epidemiological Diagnosis and Reference (InDRE), Mexico City 01480, Mexico
| | - Carolina Dale
- Laboratório de Biodiversidade Entomológica, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 4365, Brazil
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10
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Paulina OM, Aracely LM, Jaime LD, Jesús TM, Alberto DGJ, Angel RL. Identification of a triatomine infected with Trypanosoma cruzi in an urban area of the state of Veracruz, Mexico: A comprehensive study. Zoonoses Public Health 2023. [PMID: 36915955 DOI: 10.1111/zph.13038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/16/2023]
Abstract
Chagas disease, considered a neglected disease, was initially confined to rural localities in endemic areas; however, in recent years through the process of urbanization and migration of infected people, the disease is gaining importance in urban environments. The presence of the vector in urban areas in most cases is due to the passive transport of vectors, but recently, its presence seems to be linked to vector adaptation processes associated with climate change. This paper reports the occurrence of an infected triatomine in the peridomicile of a house in an urban area of Córdoba, Veracruz, Mexico, where the species found is described, the molecular characteristics and resistance to BZN and NFX of the Trypanosoma cruzi isolate obtained, as well as serological data of the dwelling inhabitants. These urban disease scenarios make it possible to generate new scientific knowledge and enable the creation of new control strategies for Chagas disease vectors.
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Affiliation(s)
- Ochoa-Martínez Paulina
- Doctorado en Ciencias Biomédicas, Universidad Veracruzana, Xalapa, Mexico.,LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico
| | - López-Monteon Aracely
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico.,Asociacion Chagas con Ciencia y Conocimiento A.C., Orizaba, Mexico
| | - López-Domínguez Jaime
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico.,Ingeniería en Biotecnología, Universidad Politécnica de Huatusco, Huatusco de Chicuellar, Mexico
| | - Torres-Montero Jesús
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico
| | | | - Ramos-Ligonio Angel
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico.,Asociacion Chagas con Ciencia y Conocimiento A.C., Orizaba, Mexico
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11
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Valença-Barbosa C, Finamore-Araujo P, Moreira OC, Alvarez MVN, Borges-Veloso A, Barbosa SE, Diotaiuti L, de Souza RDCM. High Parasitic Loads Quantified in Sylvatic Triatoma melanica, a Chagas Disease Vector. Pathogens 2022; 11:1498. [PMID: 36558833 PMCID: PMC9785645 DOI: 10.3390/pathogens11121498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
Triatoma melanica is a sylvatic vector species in Brazil. In We aimed to characterize the Trypanosoma cruzi discrete typing units (DTUs), the parasitic loads, and the blood meal sources of insects collected in rocky outcrops in rural areas in the state of Minas Gerais. An optical microscope (OM) and kDNA-PCR were used to examine natural infection by T. cruzi, and positive samples were genotyped by conventional multilocus PCR. Quantification of the T. cruzi load was performed using qPCR, and the blood meal sources were identified by Sanger sequencing the 12S rRNA gene. A total of 141 T. melanica were captured. Of these, ~55% (61/111) and ~91% (63/69) were positive by OM and KDNA-PCR, respectively. We genotyped ~89% (56/63) of the T. cruzi-positive triatomines, with TcI (~55%, 31/56) being the most prevalent DTU, followed by TcIII (~20%, 11/56) and TcII (~7%, 4/56). Only TcI+TcIII mixed infections were detected in 10 (~18%) specimens. A wide range of variation in the parasitic loads of T. melanica was observed, with an overall median value of 104 parasites/intestine, with females having higher T. cruzi loads than N2, N4, and N5. TcII showed lower parasitic loads compared to TcI and TcIII. The OM positive diagnosis odds ratio between T. cruzi infection when the parasite load is 107 compared to 103 was approximately 29.1. The most frequent blood meal source was Kerodon rupestris (~58%), followed by Thrichomys apereoides (~18%), Wiedomys cerradensis (~8%), Galactis cuja (~8%) and Gallus gallus (~8%). Our findings characterize biological and epidemiological aspects of the sylvatic population of T. melanica in the study area, highlighting the need to extend surveillance and control to this vector.
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Affiliation(s)
- Carolina Valença-Barbosa
- Grupo Triatomíneos, Instituto René Rachou-Fiocruz Minas Gerais, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Paula Finamore-Araujo
- Plataforma de PCR em Tempo Real RPT09A, Laboratório de Virologia Molecular, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro 21040-360, Brazil
| | - Otacílio Cruz Moreira
- Plataforma de PCR em Tempo Real RPT09A, Laboratório de Virologia Molecular, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro 21040-360, Brazil
| | | | - André Borges-Veloso
- Grupo Triatomíneos, Instituto René Rachou-Fiocruz Minas Gerais, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Silvia Ermelinda Barbosa
- Grupo Triatomíneos, Instituto René Rachou-Fiocruz Minas Gerais, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Liléia Diotaiuti
- Grupo Triatomíneos, Instituto René Rachou-Fiocruz Minas Gerais, Belo Horizonte, Minas Gerais 30190-002, Brazil
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12
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Dorn PL, Monroy MC, Stevens L. Sustainable, integrated control of native vectors: The case of Chagas disease in Central America. FRONTIERS IN TROPICAL DISEASES 2022. [DOI: 10.3389/fitd.2022.971000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Despite successes in reducing transmission, Chagas disease (American trypanosomiasis) remains the greatest economic burden of any parasitic disease in Latin America afflicting mostly the poor and further contributing to poverty. We review a long-term (2001-2022), integrated Ecohealth approach that addresses sustainable development goals to reduce risk of Chagas transmission by the main native vector in Central America, Triatoma dimidiata, s.l. The basis of the Ecohealth intervention was the identification of the risk factors for house infestation, an understanding of and collaboration with local communities, and genetic and proteomic studies that revealed the epidemiology and mechanisms of the rapid reinfestation seen following insecticide application. We review the development of this approach from a pilot project in two Guatemalan villages, to an expanded initiative across three countries with vastly different ecology, cultures, and municipal organization, and finally development of a multi-institutional, large-scale project to develop a strategy to tackle the remaining hot spots in Central America. This integrated Ecohealth approach resulted in reduced risk of transmission as measured by a sustained decrease in house infestation without further use of insecticides, a reduction in vectors with human blood meals and the Chagas parasite, as well as other health and economic benefits. We discuss lessons learned and how this approach could be applied to other vector-borne diseases.
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13
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de Abreu AP, Lucas da Silva HF, Sarto MPM, Iunklaus GF, Trovo JV, de Souza Fernandes N, Teston APM, Toledo MJDO. Infection susceptibility and vector competence of Rhodnius robustus Larrousse, 1927 and R. pictipes Stal, 1872 (Hemiptera, Reduviidae, Triatominae) for strains of Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida, Trypanosomatidae) I, II and IV. Parasit Vectors 2022; 15:239. [PMID: 35773725 PMCID: PMC9245265 DOI: 10.1186/s13071-022-05350-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/31/2022] [Indexed: 11/23/2022] Open
Abstract
Background Rhodnius robustus and Rhodnius pictipes are vectors of Trypanosoma cruzi, the etiologic agent of Chagas disease (CD), that are found in the Brazilian Amazon region. Susceptibility to infection and vector competence depend on the parasite-vector relationship. Our objective was to evaluate the interaction between T. cruzi and these two triatomine vectors in pure and mixed experimental infections of T. cruzi strains from the same or different geographic regions. Methods Fifth-instar nymphs of R. robustus and R. pictipes were fed on mice infected with four T. cruzi strains, namely genotypes TcIAM, TcIMG, TcIIPR, and TcIVAM, respectively, from the Brazilian states of Amazonas, Minas Gerais and Paraná. Over a period of 120 days, excreta were examined every 20 days to assess vector competence, and intestinal contents (IC) were examined every 30 days to determine susceptibility to infection. Results The highest positive rate in the fresh examination (%+FE, 30.0%), the highest number of parasitic forms (PF, n = 1969) and the highest metacyclogenesis rate (%MC, 53.8%) in the excreta were recorded for R. robustus/TcIVAM. Examination of the IC of R. pictipes revealed a higher number of PF in infections with TcIAM (22,680 PF) and TcIIPR (19,845 PF) alone or in association (17,145 PF), as well as a %+FE of 75.0% with TcII, in comparison with the other genotypes. The highest %MC (100%) was recorded for the mixed infections of TcIAM with TcIIPR or TcIVAM in the IC of R. pictipes. Conclusions Overall, both species were found to be susceptible to the T. cruzi strains studied. Rhodnius robustus showed vector competence for genotypes TcIVAM and TcIAM+TcIVAM and R. pictipes for TcIAM+TcIVAM and TcIAM+TcIIPR; there was elimination of infective forms as early as at 20 days. Our results suggest that both the genetics of the parasite and its geographic origin influence the susceptibility to infection and vector competence, alone or in association. Graphical Abstract ![]()
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Affiliation(s)
- Ana Paula de Abreu
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil.
| | - Hevillyn Fernanda Lucas da Silva
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil
| | - Marcella Paula Mansano Sarto
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil
| | - Giullia Ferreira Iunklaus
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil
| | - João Vitor Trovo
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil
| | - Nilma de Souza Fernandes
- Programa de Pós-Graduação Em Ciências Biológicas, Centro de Ciências Biológicas, UEM, Maringá, PR, 87020-900, Brazil
| | - Ana Paula Margioto Teston
- Departamento de Farmácia, Centro Universitario Uningá, Rodovia PR-317, Maringá, PR, 87035-510, Brazil
| | - Max Jean de Ornelas Toledo
- Programa de Pós-Graduação Em Ciências da Saúde, Centro de Ciências da Saúde (CCS), Universidade Estadual de Maringá (UEM), Maringá, PR, 87020-900, Brazil.,Programa de Pós-Graduação Em Ciências Biológicas, Centro de Ciências Biológicas, UEM, Maringá, PR, 87020-900, Brazil.,Departamento de Ciências Básicas da Saúde, CCS, UEM, Maringá, PR, 87020-900, Brazil
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14
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Ceccarelli S, Balsalobre A, Vicente ME, Curtis-Robles R, Hamer SA, Ayala Landa JM, Rabinovich JE, Marti GA. American triatomine species occurrences: updates and novelties in the DataTri database. GIGABYTE 2022; 2022:gigabyte62. [PMID: 36824504 PMCID: PMC9930499 DOI: 10.46471/gigabyte.62] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/25/2022] [Indexed: 11/09/2022] Open
Abstract
The causative agent of Chagas disease (Trypanosoma cruzi) is transmitted to mammals, including humans, mainly by insect vectors of the subfamily Triatominae (Hemiptera: Reduviidae). Also known as "kissing bugs", the subfamily currently includes 157 validated species (154 extant and three extinct), in 18 genera and five tribes. Here, we present a subdataset (7852 records) of American triatomine occurrences; an update to the most complete and integrated database available to date at a continental scale. New georeferenced records were obtained from a systematic review of published literature and colleague-provided data. New data correspond to 101 species and 14 genera from 22 American countries between 1935 and 2022. The most important novelties refer to (i) the inclusion of new species, (ii) synonymies and formal transferals of species, and (iii) temporal and geographical species records updates. These data will be a useful contribution to entomological surveillance implicated in Chagas disease.
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Affiliation(s)
- Soledad Ceccarelli
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires 1900, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina, Corresponding author. E-mail:
| | - Agustín Balsalobre
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires 1900, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María Eugenia Vicente
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires 1900, Argentina
| | - Rachel Curtis-Robles
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Sarah A. Hamer
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | | | - Jorge E. Rabinovich
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires 1900, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Gerardo A. Marti
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), La Plata, Buenos Aires 1900, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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15
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Bittinelli IF, de Oliveira J, Dos Reis YV, Ravazi A, Madeira FF, de Oliveira ABB, Montanari G, Gomes AJC, Cesaretto LP, Massarin IDS, Galvão C, de Azeredo-Oliveira MTV, da Rosa JA, Alevi KCC. Do not judge a book by its cover: would Triatoma tibiamaculata (Pinto, 1926) belong to Triatoma Laporte, 1832, or to Panstrongylus Berg, 1879, with misleading homoplasies? Parasit Vectors 2022; 15:184. [PMID: 35643509 PMCID: PMC9148475 DOI: 10.1186/s13071-022-05314-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
Background Triatoma tibiamaculata is a species distributed in ten Brazilian states which has epidemiological importance as it has already been found infecting household areas. The taxonomy of this triatomine has been quite unstable: it was initially described as Eutriatoma tibiamaculata. Later, the species was transferred from the genus Eutriatoma to Triatoma. Although included in the genus Triatoma, the phylogenetic position of T. tibiamaculata in relation to other species of this genus has always been uncertain once this triatomine was grouped in all phylogenies with the genus Panstrongylus, rescuing T. tibiamaculata and P. megistus as sister species. Thus, we evaluated the generic status of T. tibiamaculata using phylogenetic and chromosomal analysis. Methods Chromosomal (karyotype) and phylogenetic (with mitochondrial and nuclear markers) analyses were performed to assess the relationship between T. tibiamaculata and Panstrongylus spp. Results The chromosomal and phylogenetic relationship of T. tibiamaculata and Panstrongylus spp. confirms the transfer of the species to Panstrongylus with the new combination: Panstrongylus tibiamaculatus. Conclusions Based on chromosomal and phylogenetic characteristics, we state that P. tibiamaculatus comb. nov. belongs to the genus Panstrongylus and that the morphological features shared with Triatoma spp. represent homoplasies. Graphical Abstract ![]()
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Affiliation(s)
- Isadora Freitas Bittinelli
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Jader de Oliveira
- Laboratório de Entomologia em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo, SP, Brasil.,Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, 14801-902, Araraquara, SP, Brasil
| | - Yago Visinho Dos Reis
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Amanda Ravazi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Fernanda Fernandez Madeira
- Laboratório de Biologia Celular, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000, São José do Rio Preto, SP, Brasil
| | - Ana Beatriz Bortolozo de Oliveira
- Laboratório de Biologia Celular, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000, São José do Rio Preto, SP, Brasil
| | - Giulia Montanari
- Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, 14801-902, Araraquara, SP, Brasil
| | - Ana Julia Chaves Gomes
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Laura Poloto Cesaretto
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Isabella da Silva Massarin
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil
| | - Cleber Galvão
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, sala 505, 21040-360, Rio de Janeiro, RJ, Brasil.
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Laboratório de Biologia Celular, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000, São José do Rio Preto, SP, Brasil
| | - João Aristeu da Rosa
- Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, 14801-902, Araraquara, SP, Brasil
| | - Kaio Cesar Chaboli Alevi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, 18618-689, Botucatu, SP, Brasil.,Laboratório de Entomologia em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo, SP, Brasil.,Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, 14801-902, Araraquara, SP, Brasil.,Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, sala 505, 21040-360, Rio de Janeiro, RJ, Brasil
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16
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Cruz DD, Arellano E. Molecular data confirm Triatoma pallidipennis Stål, 1872 (Hemiptera: Reduviidae: Triatominae) as a novel cryptic species complex. Acta Trop 2022; 229:106382. [PMID: 35189124 DOI: 10.1016/j.actatropica.2022.106382] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 12/11/2022]
Abstract
Triatoma pallidipennis constitues one of the most important Chagas disease vector in Mexico. Previous studies based on molecular data suggest T. pallidipennis as a complex of cryptic species. For that reason, we analyzed the phylogenetic relationships of T. pallidipennis using DNA sequences from the mitochondrial ND4 gene and the ITS-2 gene. In addition, the divergence times were estimated, and possible new taxa were delimited with three species delimitation methods. Finally, genetic distances and possible connectivity routes based on shared haplotypes were obtained among the T. pallidipennis populations. Five haplogroups (possible cryptic species) were found, based on delimitation methods and genetic distances. Haplogroup divergence began about 3 Ma, in the Pleistocene. Moreover, none of the haplogroups showed potential connectivity routes between them, evidencing lack of gene flow. Our results suggest the existence of a new cryptic species complex within what is currently recognized as a T. pallidipennis.
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Affiliation(s)
- Daryl D Cruz
- Centro de Investigación en Biodiversidad y Conservación (CIByC), UAEM, Cuernavaca, Morelos, Mexico
| | - Elizabeth Arellano
- Centro de Investigación en Biodiversidad y Conservación (CIByC), UAEM, Cuernavaca, Morelos, Mexico.
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17
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Caranci AT, Grieco JP, Achee NL, Hoel DF, Bautista K, King R, Stewart VA, Murphy J, Masuoka P, Olsen CH. Distribution of Triatoma dimidiata sensu lato (Reduviidae: Triatominae) and Risk Factors Associated with Household Invasion in Northern Belize, Central America. JOURNAL OF MEDICAL ENTOMOLOGY 2022; 59:764-771. [PMID: 35064668 PMCID: PMC8924975 DOI: 10.1093/jme/tjab227] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 06/14/2023]
Abstract
To date, Triatoma dimidiata sensu lato [Reduviidae: Triatominae (Latreille 1811)] remains the sole vector species associated with Chagas disease transmission reported from Belize. Human infection data are limited for Belize and the disease transmission dynamics have not been thoroughly investigated, yet the likelihood of autochthonous transmission is supported by the widespread collection of infected vectors from within local households. Here, we report updated infection rates of the vector population and infestation rates for villages in north and central Belize. Overall, 275 households were enrolled in an ongoing vector surveillance program. Of the 41 insects collected, 25 were PCR positive for T. cruzi, indicating an infection rate as high as 60%. To further characterize the epidemiological risk of human-vector contact, determinants of household invasion were modeled. Local households were surveyed and characterized with respect to over 25 key factors that may be associated with household infestation by T. dimidiata s.l. While final models were not strongly predictive with respect to the risk factors that were surveyed, likely due to the low number of collection observations, the presence of domestic/peri-domestic dogs, nearby light sources, and household structure materials could be the focus of continued risk assessments. In northern Belize, this vector survey lends support to T. dimidiata s.l. inhabiting sylvatic settings as opposed to the classical paradigm of domiciliated vector populations. This designation has strong implications for the local level of human exposure risk which can help guide vector surveillance and control resources.
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Affiliation(s)
- Angela T Caranci
- Northwest MVCD, 1966 Compton Avenue, Corona, CA 92881, USA
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - John P Grieco
- Eck Institute of Global Health, University of Notre Dame, 120 Brown Hall, Notre Dame, IN 46556, USA
| | - Nicole L Achee
- Eck Institute of Global Health, University of Notre Dame, 120 Brown Hall, Notre Dame, IN 46556, USA
| | - David F Hoel
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Kim Bautista
- Ministry of Health, East Block Independence Plaza, Belmopan, Belize
| | - Russell King
- Ministry of Health, East Block Independence Plaza, Belmopan, Belize
| | - V Ann Stewart
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Jittawadee Murphy
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Penny Masuoka
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Cara H Olsen
- Department of Preventive Medicine & Biostatistics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
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18
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Pita S, Gómez-Palacio A, Lorite P, Dujardin JP, Chavez T, Villacís AG, Galvão C, Panzera Y, Calleros L, Pereyra-Mello S, Burgueño-Rodríguez G, Panzera F. Multidisciplinary approach detects speciation within the kissing bug Panstrongylus rufotuberculatus populations (Hemiptera, Heteroptera, Reduviidae). Mem Inst Oswaldo Cruz 2022; 116:e210259. [PMID: 35137904 PMCID: PMC8815762 DOI: 10.1590/0074-02760210259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/16/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Panstrongylus rufotuberculatus (Hemiptera-Reduviidae) is a triatomine species with a wide geographic distribution and a broad phenotypic variability. In some countries, this species is found infesting and colonising domiciliary ecotopes representing an epidemiological risk factor as a vector of Trypanosoma cruzi, etiological agent of Chagas disease. In spite of this, little is known about P. rufotuberculatus genetic diversity. METHODS Cytogenetic studies and DNA sequence analyses of one nuclear (ITS-2) and two mitochondrial DNA sequences (cyt b and coI) were carried out in P. rufotuberculatus individuals collected in Bolivia, Colombia, Ecuador and Mexico. Moreover, a geometric morphometrics study was applied to Bolivian, Colombian, Ecuadorian and French Guiana samples. OBJECTIVES To explore the genetic and phenetic diversity of P. rufotuberculatus from different countries, combining chromosomal studies, DNA sequence analyses and geometric morphometric comparisons. FINDINGS We found two chromosomal groups differentiated by the number of X chromosomes and the chromosomal position of the ribosomal DNA clusters. In concordance, two main morphometric profiles were detected, clearly separating the Bolivian sample from the other ones. Phylogenetic DNA analyses showed that both chromosomal groups were closely related to each other and clearly separated from the remaining Panstrongylus species. High nucleotide divergence of cyt b and coI fragments were observed among P. rufotuberculatus samples from Bolivia, Colombia, Ecuador and Mexico (Kimura 2-parameter distances higher than 9%). MAIN CONCLUSIONS Chromosomal and molecular analyses supported that the two chromosomal groups could represent different closely related species. We propose that Bolivian individuals constitute a new Panstrongylus species, being necessary a detailed morphological study for its formal description. The clear morphometric discrimination based on the wing venation pattern suggests such morphological description might be conclusive.
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Affiliation(s)
- Sebastián Pita
- Universidad de la República, Facultad de Ciencias, Sección Genética Evolutiva, Montevideo, Uruguay
| | - Andrés Gómez-Palacio
- Universidad Pedagógica y Tecnológica de Colombia, Laboratorio de Investigación en Genética Evolutiva, Boyacá, Colombia
| | - Pedro Lorite
- Universidad de Jaén, Departamento de Biología Experimental, Área de Genética, Jaén, Spain
| | - Jean Pierre Dujardin
- University of Montpellier, Institut de Recherche pour le Développement, International Campus in Baillarguet, Montpellier, Occitanie, France
| | - Tamara Chavez
- Instituto Nacional de Laboratorios de Salud, Laboratorio de Entomología Médica, La Paz, Bolivia
| | - Anita G Villacís
- Pontificia Universidad Católica del Ecuador, Facultad de Ciencias Exactas y Naturales, Escuela de Ciencias Biológicas, Centro de Investigación para la Salud en América Latina, Nayón, Quito, Ecuador
| | - Cleber Galvão
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Rio de Janeiro, RJ, Brasil
| | - Yanina Panzera
- Universidad de la República, Facultad de Ciencias, Sección Genética Evolutiva, Montevideo, Uruguay
| | - Lucía Calleros
- Universidad de la República, Facultad de Ciencias, Sección Genética Evolutiva, Montevideo, Uruguay
| | - Santiago Pereyra-Mello
- Universidad de la República, Facultad de Ciencias, Sección Genética Evolutiva, Montevideo, Uruguay
| | - Gabriela Burgueño-Rodríguez
- Universidad de la República, Centro Universitario Regional, Departamento de Ciencias Biológicas, Laboratorio de Genética Molecular Humana, Salto, Uruguay
| | - Francisco Panzera
- Universidad de la República, Facultad de Ciencias, Sección Genética Evolutiva, Montevideo, Uruguay
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19
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de Paiva VF, Belintani T, de Oliveira J, Galvão C, da Rosa JA. A review of the taxonomy and biology of Triatominae subspecies (Hemiptera: Reduviidae). Parasitol Res 2022; 121:499-512. [PMID: 34984541 DOI: 10.1007/s00436-021-07414-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/16/2021] [Indexed: 01/30/2023]
Abstract
Due to its public health importance, as vectors of Chagas disease, the subfamily Triatominae, has received the attention of taxonomists. Knowing how to correctly identify these insects is of paramount importance for the surveillance and control of these vectors. Over many years, more than 40 triatomine subspecies were proposed. Infraspecific taxa are accepted as real entities in nature and recognized as biologically significant. Infraspecific diversity and population subdivision are frequently confused with the underlying mechanisms that lead to the formation of new species and species-level diversity. The distinction between infraspecific and interspecific divergence processes has received far less attention than species delimitation. In this work, new literature data on subspecies included in the subfamily Triatominae are presented. Data were compiled about Triatoma brasiliensis, Triatoma breyeri, Triatoma circummaculata, Triatoma dimidiata, Triatoma incrassata, Triatoma infestans, Triatoma phyllosoma, Triatoma protracta, Triatoma recurva, Triatoma rubida, Triatoma sanguisuga, Triatoma vitticeps, Panstrongylus megistus, Paratriatoma hirsuta, and Paratriatoma lecticularia subspecies. Although several of these subspecies have been synonymized, herein, we emphasize that some subspecies may be valid. Therefore, further studies are needed on the taxonomy, evolution, phylogeny, biogeography, ecology, physiology, and behavior of species to reinforce, or to invalidate the infraspecific status in the subfamily.
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Affiliation(s)
- Vinícius Fernandes de Paiva
- Instituto de Biologia, Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil
| | - Tiago Belintani
- Instituto de Biologia, Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil
| | - Jader de Oliveira
- Laboratório de Entomologia Em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, Sao Paulo, São Paulo, Brazil
| | - Cleber Galvão
- Laboratório Nacional E Internacional de Referência Em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil.
| | - João Aristeu da Rosa
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista (Unesp), Araraquara, São Paulo, Brazil
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20
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Alevi KCC, de Oliveira J, da Silva Rocha D, Galvão C. Trends in Taxonomy of Chagas Disease Vectors (Hemiptera, Reduviidae, Triatominae): From Linnaean to Integrative Taxonomy. Pathogens 2021; 10:1627. [PMID: 34959582 PMCID: PMC8706908 DOI: 10.3390/pathogens10121627] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 11/23/2022] Open
Abstract
Chagas disease is a neglected tropical disease caused by the protozoan Trypanosoma cruzi and transmitted mainly by members of the subfamily Triatominae. There are currently 157 species, grouped into 18 genera and five tribes. Most descriptions of triatomine species are based on classical taxonomy. Facing evolutionary (cryptic speciation and phenotypic plasticity) and taxonomic (more than 190 synonymizations) problems, it is evident that integrative taxonomy studies are an important and necessary trend for this group of vectors. Almost two-and-a-half centuries after the description of the first species, we present for the first time the state-of-the-art taxonomy of the whole subfamily, covering from the initial classic studies to the use of integrative taxonomy.
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Affiliation(s)
- Kaio Cesar Chaboli Alevi
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, Brazil; (K.C.C.A.); (J.d.O.)
- Laboratório de Entomologia em Saúde Pública, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo 01246-904, Brazil
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, Sala 505, Rio de Janeiro 21040-360, Brazil;
| | - Jader de Oliveira
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, Brazil; (K.C.C.A.); (J.d.O.)
- Laboratório de Entomologia em Saúde Pública, Faculdade de Saúde Pública, Universidade de São Paulo (USP), Av. Dr. Arnaldo 715, São Paulo 01246-904, Brazil
| | - Dayse da Silva Rocha
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, Sala 505, Rio de Janeiro 21040-360, Brazil;
| | - Cleber Galvão
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brasil 4365, Pavilhão Rocha Lima, Sala 505, Rio de Janeiro 21040-360, Brazil;
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21
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Brito RN, Souza RCM, Diotaitui L, Lima VS, Ferreira RA. Coleção de Vetores de Tripanosomatídeos (Fiocruz/COLVET) held at the institution Fiocruz Minas in Brazil: diversity of Triatominae (Hemiptera, Reduviidae) and relevance for research, education, and entomological surveillance. Zookeys 2021; 1074:17-42. [PMID: 34963751 PMCID: PMC8654810 DOI: 10.3897/zookeys.1074.69700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/13/2021] [Indexed: 11/12/2022] Open
Abstract
The Coleção de Vetores de Tripanosomatídeos (Fiocruz/COLVET), Minas Gerais, Brazil, stands out as one of the most important collections of blood-sucking triatomines, the vectors of Trypanosomacruzi that causes Chagas disease. The aim is to describe the collection and the services it provides to support scientific research, educational activities, and entomological surveillance between 2013-2019.The data associated with the specimens held in Fiocruz/COLVET is available from the Sistema de Informação sobre a Biodiversidade Brasileira (SiBBr). These specimen metadata were analyzed and either tabulated or plotted on graph and maps. The records of services provided by the collection between 2013-2019 were also categorized and analyzed. There are 12,568 triatomine specimens deposited in the collection that belong to 77 species and 11 genera, from 15 American countries. Of the ~ 65 species of triatomines found in Brazil, 38 (57.6%) are present in the collection, including specimens from all biomes and all but three Brazilian states. The occurrence of Triatomacostalimai, Triatomalenti, Rhodniusnasutus, and Panstrongyluslenti apparently collected beyond their known distribution ranges are reported and discussed. The collection provided 168 services, supporting educational activities (41.7%), scientific research (35.7%), and regional/national entomological surveillance of triatomines (22.6%). Between the years 2014 and 2020, the number of biological specimens deposited in the Fiocruz/COLVET repository increased from 4,778 to 12,568 triatomine specimens. In addition to its great value to biodiversity conservation, the collection is of great importance because of its support of research and educational activities, and contributions to entomological surveillance, and, therefore, to public health.
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Affiliation(s)
- Raíssa N. Brito
- Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz – IRR/Fiocruz Minas, Belo Horizonte, Minas Gerais, BrazilInstituto René RachouBelo HorizonteBrazil
- Programa de Pós-Graduação em Medicina Tropical, Núcleo de Medicina Tropical, Universidade de Brasília (UnB), Brasília, Distrito Federal, BrazilUniversidade de BrasíliaBrasíliaBrazil
| | - Rita C. M. Souza
- Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz – IRR/Fiocruz Minas, Belo Horizonte, Minas Gerais, BrazilInstituto René RachouBelo HorizonteBrazil
| | - Liléia Diotaitui
- Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz – IRR/Fiocruz Minas, Belo Horizonte, Minas Gerais, BrazilInstituto René RachouBelo HorizonteBrazil
| | - Valeria S. Lima
- Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz – IRR/Fiocruz Minas, Belo Horizonte, Minas Gerais, BrazilInstituto René RachouBelo HorizonteBrazil
| | - Raquel A. Ferreira
- Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz – IRR/Fiocruz Minas, Belo Horizonte, Minas Gerais, BrazilInstituto René RachouBelo HorizonteBrazil
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22
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Nogueda-Torres B, Montañez-Valdez OD, Michel-Parra JG, Martínez-Grant DM, Martínez-Ibarra JA. Biological Parameters of Three Populations of Triatoma dimidiata s. s. (Hemiptera: Reduviidae) From Western Mexico. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:2114-2123. [PMID: 34224558 DOI: 10.1093/jme/tjab116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 06/13/2023]
Abstract
Chagas disease is a very important vector-borne disease in México, and Triatoma dimidiata sensu stricto (Latreille) is one of the most important vectors of Trypanosoma cruzi Chagas, mainly in southern and central states. In the Pacific Coast states with the highest prevalence of human T. cruzi infection, T. dimidiata s. s. is considered as a secondary vector. However, the vectorial capacity of those populations has not been studied. Therefore, the vector characteristics of three populations of T. dimidiata s. s. in western México were evaluated in this study. The populations were maintained in the laboratory at 27 ± 1°C and 75% ± 5% RH with a 12:12 h (light:dark) regime, fed on rabbits in a fortnight basis. The development times were short (172-238 d), and the number of bloodmeals to molt was low (11). Mortality was moderate (36-45%), the onset of feeding was relatively rapid (0.5-1.7 min), and feedings were extended (>15 min). More than 40% of individuals in most instars defecated in one of three categories: <1 min when feeding (5-37.9%), immediately after feeding (9-28.6%), or in <1 min post feeding (7-25.8%). The median number of laid eggs was high (over 2.5) in the three populations, as were the egg eclosion rates (>86%). Thus, the T. dimidiata s. s. in the three populations are potentially efficient vectors of T. cruzi and could contribute to the high prevalence of infection in human populations in western México.
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Affiliation(s)
- Benjamin Nogueda-Torres
- Becario de COFAA, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Colonia Casco de Santo Tomás, 11340, Ciudad de México, México
| | - Oziel D Montañez-Valdez
- Cuerpo Académico de Cuencas, Humedales y Sustentabilidad, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000, Ciudad Guzmán, Jalisco, México
- Laboratorio de Entomología Médica, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000 Ciudad Guzmán, Jalisco, México
| | - J G Michel-Parra
- Cuerpo Académico de Cuencas, Humedales y Sustentabilidad, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000, Ciudad Guzmán, Jalisco, México
| | - Diana M Martínez-Grant
- Laboratorio de Entomología Médica, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000 Ciudad Guzmán, Jalisco, México
- Carrera de Medicina, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000 Ciudad Guzmán, Jalisco, México
| | - J Alejandro Martínez-Ibarra
- Cuerpo Académico de Cuencas, Humedales y Sustentabilidad, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000, Ciudad Guzmán, Jalisco, México
- Laboratorio de Entomología Médica, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000 Ciudad Guzmán, Jalisco, México
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23
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Valença-Barbosa C, Finamore-Araujo P, Moreira OC, Vergara-Meza JG, Alvarez MVN, Nascimento JR, Borges-Veloso A, Viana MC, Lilioso M, Miguel DC, Gadelha FR, Teixeira MMG, Almeida CE. Genotypic Trypanosoma cruzi distribution and parasite load differ ecotypically and according to parasite genotypes in Triatoma brasiliensis from endemic and outbreak areas in Northeastern Brazil. Acta Trop 2021; 222:106054. [PMID: 34273309 DOI: 10.1016/j.actatropica.2021.106054] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 12/13/2022]
Abstract
This study aimed to identify the Trypanosoma cruzi genotypes and their relationship with parasitic load in distinct geographic and ecotypic populations of Triatoma brasiliensis in two sites, including one where a Chagas disease (ChD) outbreak occurred in Rio Grande do Norte state, Brazil. Triatomine captures were performed in peridomestic and sylvatic ecotopes in two municipalities: Marcelino Vieira - affected by the outbreak; and Currais Novos - where high pressure of peridomestic triatomine infestation after insecticide spraying have been reported. The kDNA-PCR was used to select 124 T. cruzi positive triatomine samples, of which 117 were successfully genotyped by fluorescent fragment length barcoding (FFLB). Moreover, the T. cruzi load quantification was performed using a multiplex TaqMan qPCR. Our findings showed a clear ecotypic segregation between TcI and TcII harboured by T. brasiliensis (p<0.001). Although no genotypes were ecotypically exclusive, TcI was predominant in peridomestic ecotopes (86%). In general, T. brasiliensis from Rio Grande do Norte had a higher T. cruzi load varying from 3.94 to 7.66 x 106T. cruzi per insect. Additionally, TcII (median value=299,504 T. cruzi/intestine unit equivalents) had more than twice (p=0.1) the parasite load of TcI (median value=149,077 T. cruzi/intestine unit equivalents), which can be attributed to a more ancient co-evolution with T. brasiliensis. The higher prevalence of TcII in the sylvatic T. brasiliensis (70%) could be associated with a more diversified source of bloodmeals for wild insect populations. Either TcI or TcII may have been responsible for the ChD outbreak that occurred in the city of Marcelino Vieira. On the other hand, a smaller portion of T. brasiliensis was infected by TcIII (3%) in the peridomicile, in addition to T. rangeli genotype A (1%), often found in mixed infections. Our results highlight the need of understanding the patterns of T. cruzi genotype´s development and circulation in insect vectors and reservoirs as a mode of tracking situations of epidemiologic importance, as the ChD outbreak recently recorded for Northeastern Brazil.
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Affiliation(s)
- Carolina Valença-Barbosa
- Instituto de Biologia, Universidade de Campinas - UNICAMP, São Paulo, Brazil; Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz - Fiocruz, Belo Horizonte, Minas Gerais, Brazil.
| | - Paula Finamore-Araujo
- Laboratório de Biologia Molecular e Doenças Endêmicas, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
| | - Otacilio C Moreira
- Laboratório de Biologia Molecular e Doenças Endêmicas, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
| | | | | | | | - André Borges-Veloso
- Instituto de Biologia, Universidade de Campinas - UNICAMP, São Paulo, Brazil; Grupo Triatomíneos, Instituto René Rachou, Fundação Oswaldo Cruz - Fiocruz, Belo Horizonte, Minas Gerais, Brazil
| | | | - Maurício Lilioso
- Instituto de Biologia, Universidade de Campinas - UNICAMP, São Paulo, Brazil
| | | | | | | | - Carlos Eduardo Almeida
- Instituto de Biologia, Universidade de Campinas - UNICAMP, São Paulo, Brazil; Instituto de Biologia, Universidade Federal da Bahia, Brazil
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Honorato NRM, da Silva ANB, de Negreiros CCA, Aguiar LMA, Marliére NP, de Souza RDCM, Souza E Guimarães RJDP, Galvão LMDC, da Câmara ACJ. Triatomine and Trypanosoma cruzi discrete typing units distribution in a semi-arid area of northeastern Brazil. Acta Trop 2021; 220:105950. [PMID: 33979639 DOI: 10.1016/j.actatropica.2021.105950] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 04/09/2021] [Accepted: 05/03/2021] [Indexed: 01/16/2023]
Abstract
The occurrence of triatomine species, their bloodmeal sources and the discrete typing units (DTUs) of Trypanosoma cruzi isolated from them were determined in different municipalities of the state of Rio Grande do Norte, Brazil. Triatomine captures were carried out in the rural areas of 23 municipalities. The genotyping of T. cruzi isolates was performed using the mitochondrial cytochrome c oxidase subunit 2 (coii) gene, the D7 region of the 24Sα rDNA, and the spliced leader intergenic region (SL-IR). Five triatomine species were captured, and the most frequent was Triatoma brasiliensis (84.3%; 916/1086), which was found in 16 of the 23 municipalities surveyed, and infested all types of environment investigated. The TcI DTU was found in all mesoregions surveyed in 51.5% (17/33) of the culture-positive samples. In contrast, TcII (9.1%; 3/33) was detected in the Central mesoregion, while TcIII (27.3%; 9/33) was found in all mesoregions. The geographic distribution and spatial overlap of different DTUs was inferred using the superposition of the radius of occurrence of isolates and using ecological niche distribution modelling. Triatoma brasiliensis was found infected in all mesoregions and with all three T. cruzi DTUs, including mixed infections. With regard to bloodmeal sources, the DNA of rodents was found in triatomines infected with either TcI or TcIII, while that of domestic animals and humans was associated with both single and mixed infections. Our findings demonstrate that different DTUs of T. cruzi are widely dispersed among triatomines in our study area. The association of T. brasiliensis with several different mammalian hosts, as well as overlapping areas with different DTUs, suggests that this triatomine species may have an important role as a vector in both anthropic and sylvatic environments.
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Affiliation(s)
- Nathan Ravi Medeiros Honorato
- Graduate Program in Parasitic Biology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | | | | | | | - Newmar Pinto Marliére
- René Rachou Institute - FIOCRUZ Minas, Triatomine Research Group, Belo Horizonte, Brazil
| | | | | | - Lúcia Maria da Cunha Galvão
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Antônia Cláudia Jácome da Câmara
- Graduate Program in Parasitic Biology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
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25
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Cesaretto NR, de Oliveira J, Ravazi A, Madeira FF, Dos Reis YV, de Oliveira ABB, Vicente RD, Cristal DC, Galvão C, de Azeredo-Oliveira MTV, da Rosa JA, Alevi KCC. Trends in taxonomy of Triatomini (Hemiptera, Reduviidae, Triatominae): reproductive compatibility reinforces the synonymization of Meccus Stål, 1859 with Triatoma Laporte, 1832. Parasit Vectors 2021; 14:340. [PMID: 34174967 PMCID: PMC8235253 DOI: 10.1186/s13071-021-04847-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/11/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Meccus' taxonomy has been quite complex since the first species of this genus was described by Burmeister in 1835 as Conorhinus phyllosoma. In 1859 the species was transferred to the genus Meccus and in 1930 to Triatoma. However, in the twentieth century, the Meccus genus was revalidated (alteration corroborated by molecular studies) and, in the twenty-first century, through a comprehensive study including more sophisticated phylogenetic reconstruction methods, Meccus was again synonymous with Triatoma. Events of natural hybridization with production of fertile offspring have already been reported among sympatric species of the T. phyllosoma subcomplex, and experimental crosses demonstrated reproductive viability among practically all species of the T. phyllosoma subcomplex that were considered as belonging to the genus Meccus, as well as between these species and species of Triatoma. Based on the above, we carried out experimental crosses between T. longipennis (considered M. longipennis in some literature) and T. mopan (always considered as belonging to Triatoma) to evaluate the reproductive compatibility between species of the T. phyllosoma complex. In addition, we have grouped our results with information from the literature regarding crosses between species that were grouped in the genus Meccus with Triatoma, in order to discuss the importance of experimental crosses to confirm the generic reorganization of species. RESULTS The crosses between T. mopan female and T. longipennis male resulted in viable offspring. The hatching of hybrids, even if only in one direction and/or at low frequency, demonstrates reproductive compatibility and homeology between the genomes of the parents. CONCLUSION Considering that intergeneric crosses usually do not result in viable offspring in Triatominae, the reproductive compatibility observed between the T. phyllosoma subcomplex species considered in the Meccus genus with species of the Triatoma genus shows that there is "intergeneric" genomic compatibility, which corroborates the generic reorganization of Meccus in Triatoma.
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Affiliation(s)
- Natália Regina Cesaretto
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências , Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior , Botucatu, SP, 18618-689, Brazil
| | - Jader de Oliveira
- Laboratório de Entomologia em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública , Universidade de São Paulo, Av. Dr. Arnaldo 715, São Paulo, SP, Brazil
- Laboratório de Parasitologia , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas , Rodovia Araraquara-Jaú km 1, Araraquara, SP, 14801-902, Brazil
| | - Amanda Ravazi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências , Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior , Botucatu, SP, 18618-689, Brazil
| | - Fernanda Fernandez Madeira
- Laboratório de Biologia Celular , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas , Rua Cristóvão Colombo 2265 , São José Do Rio Preto, SP, 15054-000, Brazil
| | - Yago Visinho Dos Reis
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências , Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior , Botucatu, SP, 18618-689, Brazil
| | - Ana Beatriz Bortolozo de Oliveira
- Laboratório de Biologia Celular , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas , Rua Cristóvão Colombo 2265 , São José Do Rio Preto, SP, 15054-000, Brazil
| | - Roberto Dezan Vicente
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências , Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior , Botucatu, SP, 18618-689, Brazil
| | - Daniel Cesaretto Cristal
- Laboratório de Parasitologia , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas , Rodovia Araraquara-Jaú km 1, Araraquara, SP, 14801-902, Brazil
| | - Cleber Galvão
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ) , Av. Brasil 4365, Pavilhão Rocha Lima, sala 505, Rio de Janeiro, RJ, 21040-360, Brazil.
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Laboratório de Biologia Celular , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências, Letras e Ciências Exatas , Rua Cristóvão Colombo 2265 , São José Do Rio Preto, SP, 15054-000, Brazil
| | - João Aristeu da Rosa
- Laboratório de Parasitologia , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas , Rodovia Araraquara-Jaú km 1, Araraquara, SP, 14801-902, Brazil
| | - Kaio Cesar Chaboli Alevi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Biociências , Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior , Botucatu, SP, 18618-689, Brazil
- Laboratório de Parasitologia , Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Ciências Farmacêuticas , Rodovia Araraquara-Jaú km 1, Araraquara, SP, 14801-902, Brazil
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Costa J, Dale C, Galvão C, Almeida CE, Dujardin JP. Do the new triatomine species pose new challenges or strategies for monitoring Chagas disease? An overview from 1979-2021. Mem Inst Oswaldo Cruz 2021; 116:e210015. [PMID: 34076075 PMCID: PMC8186471 DOI: 10.1590/0074-02760210015] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/04/2021] [Indexed: 11/22/2022] Open
Abstract
Chagas disease persists as one of the most important, and yet most neglected, diseases in the world, and several changes in its epidemiological aspects have been recorded since its discovery. Currently, some of the most relevant changes are related to: (i) the reduction in the incidence of the endemic due to the control of the most important vectors, Triatoma infestans and Rhodnius prolixus, in many countries; (ii) the migration of human populations spreading cases of the disease throughout the world, from endemic to non-endemic areas, transforming Chagas disease into a global threat; and (iii) new acute cases and deaths caused by oral transmission, especially in the north of Brazil. Despite the reduction in the number of cases, new challenges need to be responded to, including monitoring and control activities aiming to prevent house infestation by the secondary vectors from occurring. In 1979, Lent & Wygodzinsky(1) published the most complete review of the subfamily Triatominae, encompassing 111 recognised species in the taxon. Forty-two years later, 46 new species and one subspecies have been described or revalidated. Here we summarise the new species and contextualise them regarding their ecology, epidemiologic importance, and the obstacles they pose to the control of Chagas disease around the world.
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Affiliation(s)
- Jane Costa
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biodiversidade Entomológica, Rio de Janeiro, RJ, Brasil
| | - Carolina Dale
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Biodiversidade Entomológica, Rio de Janeiro, RJ, Brasil
| | - Cleber Galvão
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Rio de Janeiro, RJ, Brasil
| | - Carlos Eduardo Almeida
- Universidade Federal da Bahia, Salvador, BA, Brasil
- Universidade Estadual de Campinas, Instituto de Biologia, Campinas, SP, Brasil
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Gurgel-Gonçalves R, Abad-Franch F, de Almeida MR, Obara MT, de Souza RDCM, Batista JADS, Rocha DDA. TriatoDex, an electronic identification key to the Triatominae (Hemiptera: Reduviidae), vectors of Chagas disease: Development, description, and performance. PLoS One 2021; 16:e0248628. [PMID: 33886550 PMCID: PMC8061935 DOI: 10.1371/journal.pone.0248628] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 03/02/2021] [Indexed: 12/02/2022] Open
Abstract
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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Affiliation(s)
- Rodrigo Gurgel-Gonçalves
- Laboratório de Parasitologia Médica e Biologia de Vetores, Área de Patologia, Faculdade de Medicina, Universidade de Brasília, Brasília, Brazil
- Faculdade de Medicina, Núcleo de Medicina Tropical, Universidade de Brasília, Brasília, Brazil
- * E-mail:
| | - Fernando Abad-Franch
- Faculdade de Medicina, Núcleo de Medicina Tropical, Universidade de Brasília, Brasília, Brazil
| | | | - Marcos Takashi Obara
- Faculdade de Medicina, Núcleo de Medicina Tropical, Universidade de Brasília, Brasília, Brazil
- Faculdade de Ceilândia, Universidade de Brasília, Brasília, Brazil
| | | | | | - Douglas de Almeida Rocha
- Laboratório de Parasitologia Médica e Biologia de Vetores, Área de Patologia, Faculdade de Medicina, Universidade de Brasília, Brasília, Brazil
- Faculdade de Medicina, Núcleo de Medicina Tropical, Universidade de Brasília, Brasília, Brazil
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Pinotti H, Alevi KCC, de Oliveira J, Ravazi A, Madeira FF, Dos Reis YV, de Oliveira ABB, de Azeredo-Oliveira MTV, da Rosa JA. Segregation of phenotypic characteristics in hybrids of Triatoma brasiliensis species complex (Hemiptera, Reduviidae, Triatominae). INFECTION GENETICS AND EVOLUTION 2021; 91:104798. [PMID: 33676012 DOI: 10.1016/j.meegid.2021.104798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 11/18/2022]
Abstract
There are currently 156 species, grouped into 18 genera and five tribes included in the subfamily Triatominae. All of them are potential vectors of Chagas disease. Triatoma is paraphyletic and the species of this genus have been grouped into complexes and subcomplexes. Triatoma brasiliensis complex is a monophyletic group composed of eight taxa: T. b. brasiliensis, T. b. macromelanosoma, T. juazeirensis, T. sherlocki, T. petrocchiae, T. lenti, T. bahiensis, T. melanica. Experimental crosses have helped in systematic, taxonomic and evolutionary issues of these vectors. Based on this, we carried out experimental crosses between T. lenti and four other species of the T. brasiliensis complex and analyzed the segregation pattern of phenotypic characteristics of T. lenti, T. b. brasiliensis, T. b. macromelasoma, T. juazeirensis and T. melanica in the hybrids. The hybrids resulting from the crosses between T. b. brasiliensis ♀ x T. lenti ♂, T. juazeirensis ♀ x T. lenti ♂, and T. melanica ♀ x T. lenti ♂ showed segregation of characteristics of both parental species. On the other hand, the hybrids between T. lenti ♀ x T. juazeirensis ♂, T. b. macromelasoma ♀ x T. lenti ♂, and T. lenti ♀ x T. melanica ♂ showed a specific pattern of T. lenti, T. lenti and T. melanica, respectively. Thus, the pattern of segregation of morphological characteristics between species of the T. brasiliensis complex was characterized. These results highlight the importance of integrative taxonomy for the correct identification of Chagas disease vectors grouped in the T. brasiliensis complex if natural hybridization events occur.
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Affiliation(s)
- Heloisa Pinotti
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, SP, Brazil
| | - Kaio Cesar Chaboli Alevi
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, SP, Brazil; Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, Botucatu 18618-689, SP, Brazil.
| | - Jader de Oliveira
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, SP, Brazil
| | - Amanda Ravazi
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, Botucatu 18618-689, SP, Brazil
| | - Fernanda Fernandez Madeira
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, São José do Rio Preto 15054-000, SP, Brazil
| | - Yago Visinho Dos Reis
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Júnior, Botucatu 18618-689, SP, Brazil
| | - Ana Beatriz Bortolozo de Oliveira
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, São José do Rio Preto 15054-000, SP, Brazil
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, São José do Rio Preto 15054-000, SP, Brazil
| | - João Aristeu da Rosa
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rodovia Araraquara-Jaú km 1, Araraquara 14801-902, SP, Brazil
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Vivas RJ, García JE, Guhl F, Hernández C, Velásquez N, Ramírez JD, Carranza JC, Vallejo GA. Systematic review on the biology, ecology, genetic diversity and parasite transmission potential of Panstrongylus geniculatus (Latreille 1811) in Latin America. Mem Inst Oswaldo Cruz 2021; 116:e200528. [PMID: 33656141 PMCID: PMC7919531 DOI: 10.1590/0074-02760200528] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 01/26/2021] [Indexed: 11/21/2022] Open
Abstract
Panstrongylus geniculatus (Latreille, 1811) is the triatomine with the largest geographic distribution in Latin America. It has been reported in 18 countries from southern Mexico to northern Argentina, including the Caribbean islands. Although most reports indicate that P. geniculatus has wild habitats, this species has intrusive habits regarding human dwellings mainly located in intermediate deforested areas. It is attracted by artificial light from urban and rural buildings, raising the risk of transmission of Trypanosoma cruzi. Despite the wide body of published information on P. geniculatus, many knowledge gaps exist about its biology and epidemiological potential. For this reason, we analysed the literature for P. geniculatus in Scopus, PubMed, Scielo, Google Scholar and the BibTriv3.0 databases to update existing knowledge and provide better information on its geographic distribution, life cycle, genetic diversity, evidence of intrusion and domiciliation, vector-related circulating discrete taxonomic units, possible role in oral T. cruzi transmission, and the effect of climate change on its biology and epidemiology.
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Affiliation(s)
- Ricardo José Vivas
- Universidad del Tolima, Laboratorio de Investigaciones en Parasitología Tropical, Ibagué, Colombia
| | - Jorge Enrique García
- Universidad de Ibagué, Facultad de Ciencias Naturales y Matemáticas, Ibagué, Colombia
| | - Felipe Guhl
- Universidad de los Andes, Centro de Investigaciones en Microbiología y Parasitología Tropical, Bogotá, Colombia
| | - Carolina Hernández
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Departamento de Biología, Grupo de Investigaciones Microbiológicas, Bogotá, Colombia
| | - Natalia Velásquez
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Departamento de Biología, Grupo de Investigaciones Microbiológicas, Bogotá, Colombia
| | - Juan David Ramírez
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Departamento de Biología, Grupo de Investigaciones Microbiológicas, Bogotá, Colombia
| | - Julio César Carranza
- Universidad del Tolima, Laboratorio de Investigaciones en Parasitología Tropical, Ibagué, Colombia
| | - Gustavo Adolfo Vallejo
- Universidad del Tolima, Laboratorio de Investigaciones en Parasitología Tropical, Ibagué, Colombia
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Rabinovich JE. Morphology, Life Cycle, Environmental Factors and Fitness – a Machine Learning Analysis in Kissing Bugs (Hemiptera, Reduviidae, Triatominae). Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.651683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Populations are permanently evolving and their evolution will influence their survival and reproduction, which will then alter demographic parameters. Several phenotypic, life history and environmental variables are known to be related to fitness measures. The goal of this article was to look into the possible types of those relationships in insects of the subfamily Triatominae, vectors of Trypanosoma cruzi, the causative agent of Chagas disease. After an exhaustive literature review of 7,207 records of publications referring exclusively to all possible features of the triatomines, using 15 keywords those records were reduced to 2,968 publications, that were analyzed individually; after deleting those publications that did not have the data in quantitative form as needed for the objective of this article, I found that 171 papers were adequate for the present analysis. From them I compiled a dataset of 11 variables and 90 cases from 36 triatomine species. Those variables included four environmental, two life cycle, and four morphological variables, and one demographic parameter: a fitness measure (the population intrinsic rate of natural increase, r0), used as dependent variable. However, the relationship between T. cruzi and its vector host was not included in this analysis despite triatomine-T. cruzi interactions constitute an important factor in the evolution of triatomine’s life history. I resorted to the Random Forest method as a machine learning approach for the analysis of this dataset, and found that –in addition to the triatomine species themselves– only the two life cycle variables (mean development time from egg to adult, and mean fecundity, expressed as the average number of female eggs laid per female per day) were statistically significant in determining fitness (r0). The machine learning approach used in the analysis provided a similar but deeper insight into these relationships than classical regression. Except for an analysis on senescence, this is the first study in triatomines addressing these questions. These results will be useful for other theoretical optimization approaches (frequency-dependence, density-dependence, evolutionary game theory, and adaptive dynamics), thus contributing to the theoretical framework for interpreting the succession of stages in insect adaptations, a framework yet to be constructed.
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Cruz DD, Denis D, Arellano E, Ibarra-Cerdeña CN. Quantitative imagery analysis of spot patterns for the three-haplogroup classification of Triatoma dimidiata (Latreille, 1811) (Hemiptera: Reduviidae), an important vector of Chagas disease. Parasit Vectors 2021; 14:90. [PMID: 33514419 PMCID: PMC7847135 DOI: 10.1186/s13071-021-04598-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 01/13/2021] [Indexed: 02/07/2023] Open
Abstract
Background Spots and coloring patterns evaluated quantitatively can be used to discriminate and identify possible cryptic species. Species included in the Triatoma dimidiata (Reduviidae: Triatominae) complex are major disease vectors of Chagas disease. Phylogenetic studies have defined three haplogroups for Mexico and part of Central America. We report here our evaluation of the possibility of correctly discriminating these three T. dimidiata haplogroups using the pattern of the dorsal spots. Methods Digital images of the dorsal region of individuals from the three haplogroups were used. Image processing was used to extract primary and secondary variables characterizing the dorsal spot pattern. Statistical analysis of the variables included descriptive statistics, non-parametric Kruskal–Wallis tests, discriminant function analysis (DFA) and a neural classification network. Results A distinctive spot pattern was found for each haplogroup. The most differentiated pattern was presented by haplogroup 2, which was characterized by its notably larger central spots. Haplogroups 1 and 3 were more similar to each other, but there were consistent differences in the shape and orientation of the spots. Significant differences were found among haplogroups in almost all of the variables analyzed, with the largest differences seen for relative spot area, mean relative area of central spots, central spots Feret diameter and lateral spots Feret diameter and aspect ratio. Both the DFA and the neural network had correct discrimination values of > 90%. Conclusions Based on the results of this analysis, we conclude that the spot pattern can be reliably used to discriminate among the three haplogroups of T. dimidiata in Mexico, and possibly among triatomine species. ![]()
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Affiliation(s)
- Daryl D Cruz
- Centro de Investigación en Biodiversidad y Conservación (CIByC), Universidad Autónoma del Estado de Morelos (UAEM), Cuernavaca, Morelos, México.
| | - Dennis Denis
- Departamento de Biología Animal y Humana, Facultad de Biología, Universidad de La Habana, Havana, Cuba
| | - Elizabeth Arellano
- Centro de Investigación en Biodiversidad y Conservación (CIByC), Universidad Autónoma del Estado de Morelos (UAEM), Cuernavaca, Morelos, México
| | - Carlos N Ibarra-Cerdeña
- Departamento de Ecología Humana, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV), Unidad Mérida, Yucatán, México
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de Oliveira J, Aristeu da Rosa J, Chaboli Alevi KC. Chagas Disease Vectors of Espírito Santo, Brazil: First Report of Triatoma infestans (Klug, 1834) (Hemiptera, Triatominae) in the Brazilian State and Development of an Identification Key Based on Cytogenetic Data. Am J Trop Med Hyg 2021; 104:653-655. [PMID: 33399039 DOI: 10.4269/ajtmh.20-0492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/21/2020] [Indexed: 11/07/2022] Open
Abstract
Chagas disease is a potentially life-threatening illness caused by the protozoan Trypanosoma cruzi and transmitted, mainly, by hematophagous insects of the Triatominae subfamily. In Brazil, there are currently about 66 triatomine species distributed throughout the country's 27 states. Triatoma infestans is considered as a species of great vectorial importance, mainly because of its biological characteristics, such as the high degree of anthropophilia, adaptation to the home environment, ability to withstand long periods of fasting, and present a wide geographical distribution. Taking into account the epidemiological importance of these species, we carried out the first report of T. infestans in the Espírito Santo, Brazil, and development of an identification key for all species notified in that state, based on cytogenetic data. This information is important because they contribute to the direction of epidemiological surveillance activities carried out by vector control programs of the Espírito Santo, Brazil.
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Affiliation(s)
- Jader de Oliveira
- Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Araraquara, Brazil
| | - João Aristeu da Rosa
- Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Araraquara, Brazil
| | - Kaio Cesar Chaboli Alevi
- Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Laboratório de Parasitologia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Araraquara, Brazil
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Dias JVL, Souza RDCMD, Souza JMB, Diotaiuti LG, Ferreira RA. Occurrence of Panstrongylus megistus (Burmeister, 1835) in an area under entomological surveillance in the Southeast Region of Brazil. Rev Soc Bras Med Trop 2021; 54:e00842020. [PMID: 33338105 PMCID: PMC7747831 DOI: 10.1590/0037-8682-0084-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/13/2020] [Indexed: 11/21/2022] Open
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Alevi KCC, de Oliveira J, Garcia ACC, Cristal DC, Delgado LMG, de Freitas Bittinelli I, dos Reis YV, Ravazi A, de Oliveira ABB, Galvão C, de Azeredo-Oliveira MTV, Madeira FF. Triatoma rosai sp. nov. (Hemiptera, Triatominae): A New Species of Argentinian Chagas Disease Vector Described Based on Integrative Taxonomy. INSECTS 2020; 11:insects11120830. [PMID: 33255910 PMCID: PMC7759825 DOI: 10.3390/insects11120830] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 01/01/2023]
Abstract
Simple Summary Although all triatomines are potential vectors of Chagas' disease, there are species with greater or lesser vectorial importance. Therefore, the correct identification of triatomines species is essential for the vector control programs. In general, triatomines are identified by external morphological characters. However, some species are very similar or even morphologically identical, being important the use of complementary analyses for the correct identification of species. For this reason, this study focused on the use of morphological, morphometric, molecular data, and experimental crosses to describe Triatoma rosai sp. nov., a new species of Argentinian Chagas disease vector. Significant morphological and morphometric differences, associated with phylogenetic support and high mortality rate of the hybrids made it possible to confirm the specific status of T. rosai sp. nov., emphasizing the importance of integrative analyses for the taxonomy of triatomines. Abstract Chagas disease is the most prevalent neglected tropical disease in the Americas and makes an important contribution to morbidity and mortality rates in countries where it is endemic since 30 to 40% of patients develop cardiac diseases, gastrointestinal disorders, or both. In this paper, a new species of the genus Triatoma is described based on specimens collected in the Department San Miguel, Province of Corrientes, Argentina. Triatoma rosai sp. nov. is closely related to T. sordida (Stål, 1859), and was characterized based on integrative taxonomy using morphological, morphometric, molecular data, and experimental crosses. These analyses, combined with data from the literature (cytogenetics, electrophoresis pattern, molecular analyses, cuticular hydrocarbons pattern, geometric morphometry, cycle, and average time of life as well as geographic distribution) confirm the specific status of T. rosai sp. nov. Natural Trypanosoma cruzi infection, coupled with its presence mostly in peridomestic habitats, indicates that this species can be considered as an important Chagas disease vector from Argentina.
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Affiliation(s)
- Kaio Cesar Chaboli Alevi
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil; (K.C.C.A.); (J.d.O.); (D.C.C.)
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Jader de Oliveira
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil; (K.C.C.A.); (J.d.O.); (D.C.C.)
| | - Ariane Cristina Caris Garcia
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Daniel Cesaretto Cristal
- Laboratório de Parasitologia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil; (K.C.C.A.); (J.d.O.); (D.C.C.)
| | - Luiza Maria Grzyb Delgado
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Isadora de Freitas Bittinelli
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Yago Visinho dos Reis
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Amanda Ravazi
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; (A.C.C.G.); (L.M.G.D.); (I.d.F.B.); (Y.V.d.R.); (A.R.)
| | - Ana Beatriz Bortolozo de Oliveira
- Laboratório de Biologia Celular, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil; (A.B.B.d.O.); (M.T.V.d.A.-O.); (F.F.M.)
| | - Cleber Galvão
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz (FIOCRUZ), Av. Brazil 4365, Pavilhão Rocha Lima, sala 505, 21040-360 Rio de Janeiro, RJ, Brazil
- Correspondence:
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Laboratório de Biologia Celular, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil; (A.B.B.d.O.); (M.T.V.d.A.-O.); (F.F.M.)
| | - Fernanda Fernandez Madeira
- Laboratório de Biologia Celular, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Letras e Ciências Exatas, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil; (A.B.B.d.O.); (M.T.V.d.A.-O.); (F.F.M.)
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Aguilera-Uribe M, Meza-Lázaro RN, Kieran TJ, Ibarra-Cerdeña CN, Zaldívar-Riverón A. Phylogeny of the North-Central American clade of blood-sucking reduviid bugs of the tribe Triatomini (Hemiptera: Triatominae) based on the mitochondrial genome. INFECTION GENETICS AND EVOLUTION 2020; 84:104373. [DOI: 10.1016/j.meegid.2020.104373] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/19/2022]
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Madeira FF, Delgado LMG, Bittinelli IDF, Sartori RQ, Oliveira JD, Rosa JAD, Azeredo-Oliveira MTVD, Alevi KCC. Revisiting the genetic variability of Brazilian peridomestic populations of the Chagas disease vector Triatoma sordida () (Hemiptera, Triatominae). INFECTION GENETICS AND EVOLUTION 2020; 85:104568. [PMID: 32980578 DOI: 10.1016/j.meegid.2020.104568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/07/2020] [Accepted: 09/21/2020] [Indexed: 01/14/2023]
Abstract
Triatoma sordida is an endemic species to South America, currently considered the species most frequently found in the peridomestic environment in Brazil. This triatomine has a wide ecological tolerability that allows it to inhabit several ecotopes and use different food sources. Although the species is considered predominantly peridomestic, it is also capable of colonizing households and forming numerous intra-household colonies, leading to its inclusion among the priorities for triatomine control campaigns in Brazil. All Brazilian populations of T. sordida are considered as T. sordida sensu stricto by chromosomal analyses (which highlights their epidemiological importance), although molecular studies that characterize the genetic diversity of these populations are scarce, being restricted only to the region of Minas Gerais. Thus, several populations of this vector distributed in the states of Bahia, Goiás, Mato Grosso do Sul, and Minas Gerais were analyzed using mitochondrial markers (cyt b and nd1). Low nucleotide diversity, high haplotypic diversity, low genetic distance, and high FST value were observed, as well as the formation of a monophyletic clade of the Brazilian populations of T. sordida, which confirms that this species has low genetic variability, with all specimens in Brazil grouped in T. sordida sensu stricto. In addition to the genetic and evolutionary importance for the knowledge of the biology of these vectors, these results are important from an epidemiological point of view, thus being able to direct vector control programs.
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Affiliation(s)
- Fernanda Fernandez Madeira
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBILCE/UNESP, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | - Luiza Maria Grzyb Delgado
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBB/UNESP, Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil
| | - Isadora de Freitas Bittinelli
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBB/UNESP, Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil
| | - Ricardo Quitério Sartori
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBILCE/UNESP, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | - Jader de Oliveira
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho", FCFAR/UNESP, Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil
| | - João Aristeu da Rosa
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho", FCFAR/UNESP, Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBILCE/UNESP, Rua Cristóvão Colombo 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | - Kaio Cesar Chaboli Alevi
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", IBB/UNESP, Rua Dr. Antônio Celso Wagner Zanin, 250, Distrito de Rubião Junior, 18618-689 Botucatu, SP, Brazil; Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho", FCFAR/UNESP, Rodovia Araraquara-Jaú km 1, 14801-902 Araraquara, SP, Brazil..
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Rengifo‐Correa L, Abad‐Franch F, Martínez‐Hernández F, Salazar‐Schettino PM, Téllez‐Rendón JL, Villalobos G, Morrone JJ. A biogeographic–ecological approach to disentangle reticulate evolution in the
Triatoma phyllosoma
species group (Heteroptera: Triatominae), vectors of Chagas disease. J ZOOL SYST EVOL RES 2020. [DOI: 10.1111/jzs.12409] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Laura Rengifo‐Correa
- Departamento de Biología Evolutiva Facultad de Ciencias Museo de Zoología ‘Alfonso L. Herrera’Universidad Nacional Autónoma de México Mexico City Mexico
| | - Fernando Abad‐Franch
- Programa de Pós‐graduação em Medicina Tropical Núcleo de Medicina Tropical Facultade Medicina Universidade de Brasília Brasília Brazil
| | | | - Paz M. Salazar‐Schettino
- Laboratorio de Biología de Parásitos Departamento de Microbiología y Parasitología Facultad de Medicina Universidad Nacional Autónoma de México Mexico City Mexico
| | | | - Guiehdani Villalobos
- Departamento de Ecología de Agentes Patógenos Hospital General Dr. Manuel Gea González Mexico City Mexico
| | - Juan J. Morrone
- Departamento de Biología Evolutiva Facultad de Ciencias Museo de Zoología ‘Alfonso L. Herrera’Universidad Nacional Autónoma de México Mexico City Mexico
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Carmona-Galindo VD, Marín Recinos MF, Gámez Hidalgo SA, Recinos Paredes G, Posada Vaquerano EE, Romero Magaña AL, Castillo Ayala AK. Morphological variability and ecological characterization of the Chagas disease vector Triatoma dimidiata (Hemiptera: Reduviidae) in El Salvador. Acta Trop 2020; 205:105392. [PMID: 32061627 DOI: 10.1016/j.actatropica.2020.105392] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 02/08/2020] [Accepted: 02/08/2020] [Indexed: 11/24/2022]
Abstract
There are 8 million people with Chagas disease worldwide and in El Salvador approximately 39% of the population is at risk of contracting the disease. One of the principal challenges in mitigating Chagas is evaluating the role of the vector ecology of triatomine species in the transmission of the Trypanosoma cruzi parasite in anthropogenically modified habitats, where new patterns of transmission frequently arise. Field studies of triatomine vector ecology in El Salvador have largely focused on describing parameters that contribute to infestation patterns, which may themselves be rooted in the morphological variability that exists in triatomine populations. The objective of this study was to evaluate the morphology of the vector species Triatoma dimidiata with respect to the characteristics of the ecological landscape the vector inhabits throughout El Salvador. We used image analyses to evaluate T. dimidiata morphological variability and then used Geographic Information Systems to intersect the morphological point-data with map layers containing different environmental characteristics. Our study found that the variation in the size, shape, and coloration of T. dimidiata varied in relation to elevation, Holdridge life zone, soil type and land use. We further characterize the local morphological adaptations of T. dimidiata with respect to the local ecological, biological, and geographical conditions in El Salvador. We suggest that future studies consider a molecular exploration of local T. dimidiata species complex in El Salvador, especially since morphological studies of triatomine species complex have found that variability correlate with the genetic variability of the population.
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Falcone R, Ribeiro AR, Oliveira JD, Mendonça VJ, Graminha M, Rosa JAD. Differentiation of Rhodnius neglectus and Rhodnius prolixus (Hemiptera: Reduviidae: Triatominae) by multiple parameters. Rev Soc Bras Med Trop 2020; 53:e20190503. [PMID: 32267457 PMCID: PMC7156257 DOI: 10.1590/0037-8682-0503-2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/17/2020] [Indexed: 11/26/2022] Open
Abstract
Introduction: The genus Rhodnius in the subfamily Triatominae comprises
20 species, which can transmit Trypanosoma cruzi and
Trypanosoma rangeli. Due to the development of
molecular techniques, Triatominae species can now be characterized by
mitochondrial and nuclear markers, making it possible to verify and/or
correct the existing data on these species. The results achieved in this
study provide a more detailed and accurate differentiation of the
Rhodnius species, helping the establishment of a more
appropriate classification. Methods: Data collection was performed by DNA analysis, morphological and
morphometric studies to distinguish four populations of R.
neglectus and four of R. prolixus.
Phylogenetic data were compared to morphological and morphometric data. Results: The analysis of Cytb fragments suggests that the four colonies designated to
Rhodnius neglectus as well as those of R.
prolixus were correctly identified. Conclusions: The morphological characters observed in the specimens of the colonies
originally identified as R. prolixus and R.
neglectus, such as the presence or absence of collar in the
eggs, the patterns of the median process of the pygophore, and anterolateral
angle, are consistent with the species. Geometric morphometrics also show an
intraspecific variability in R. prolixus.
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Affiliation(s)
- Rossana Falcone
- Departamento de Ciências Biológicas, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Aline Rimoldi Ribeiro
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, SP, Brasil
| | - Jader de Oliveira
- Departamento de Ciências Biológicas, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - Vagner José Mendonça
- Departamento de Parasitologia e Microbiologia, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - Márcia Graminha
- Departamento de Análises Clínicas, Universidade Estadual Paulista, Araraquara, SP, Brasil
| | - João Aristeu da Rosa
- Departamento de Ciências Biológicas, Universidade Estadual Paulista, Araraquara, SP, Brasil
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Prezygotic isolation confirms the exclusion of Triatoma melanocephala, T. vitticeps and T. tibiamaculata of the T. brasiliensis subcomplex (Hemiptera, Triatominae). INFECTION GENETICS AND EVOLUTION 2020; 79:104149. [DOI: 10.1016/j.meegid.2019.104149] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 11/22/2022]
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Ramírez M, Ortiz MI, Guerenstein P, Molina J. Novel repellents for the blood-sucking insects Rhodnius prolixus and Triatoma infestans, vectors of Chagas disease. Parasit Vectors 2020; 13:142. [PMID: 32188498 PMCID: PMC7079506 DOI: 10.1186/s13071-020-04013-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/10/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Studying the behavioral response of blood-sucking disease-vector insects to potentially repellent volatile compounds could shed light on the development of new control strategies. Volatiles released by human facial skin microbiota play different roles in the host-seeking behavior of triatomines. We assessed the repellency effect of such compounds of bacterial origin on Triatoma infestans and Rhodnius prolixus, two important vectors of Chagas disease in Latin America. METHODS Using an exposure device, insects were presented to human odor alone (control) and in the presence of three individual test compounds (2-mercaptoethanol, dimethyl sulfide and 2-phenylethanol, the latter only tested in R. prolixus) and the gold-standard repellent NN-diethyl-3-methylbenzamide (DEET). We quantified the time the insects spent in the proximity of the host and determined if any of the compounds evaluated affected the behavior of the insects. RESULTS We found volatiles that significantly reduced the time spent in the proximity of the host. These were 2-phenylethanol and 2-mercaptoethanol for R. prolixus, and dimethyl sulfide and 2-mercaptoethanol for T. infestans. Such an effect was also observed in both species when DEET was presented, although only at the higher doses tested. CONCLUSIONS The new repellents modulated the behavior of two Chagas disease vectors belonging to two different triatomine tribes, and this was achieved using a dose up to three orders of magnitude lower than that needed to evoke the same effect with DEET. Future efforts in understanding the mechanism of action of repellent compounds such as 2-mercaptoethanol, as well as an assessment of their temporal and spatial repellent properties, could lead to the development of novel control strategies for these insect vectors, refractory to DEET.
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Affiliation(s)
- Melanie Ramírez
- Centro de Investigaciones en Microbiología y Parasitología Tropical (CIMPAT), Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
| | - Mario I Ortiz
- Centro de Investigaciones en Microbiología y Parasitología Tropical (CIMPAT), Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
| | - Pablo Guerenstein
- Laboratorio de Estudio de la Biología de Insectos, Centro de Investigación Científica y de Transferencia Tecnológica a la Producción (CONICET-Prov. Entre Rios-Uader), Diamante, Argentina.,Facultad de Ingenieria, Universidad Nacional de Entre Ríos, Concepción del Uruguay, Entre Rios, Argentina
| | - Jorge Molina
- Centro de Investigaciones en Microbiología y Parasitología Tropical (CIMPAT), Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia.
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Borsatto KC, Reis YVD, Garcia ACC, Sousa PSD, Azeredo-Oliveira MTVD, Alevi KCC. CytoKey: Identification Key for the Chagas Disease Vectors of the Largest Brazilian Urban Center (São Paulo State), Based on Cytogenetic Data. Am J Trop Med Hyg 2020; 101:113-115. [PMID: 31094310 DOI: 10.4269/ajtmh.18-0683] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Chagas disease is caused by the protozoan Trypanosoma cruzi. This disease is distributed in 21 Latin American countries, where it is mostly vector-borne. In Brazil, there are 68 triatomine species. To date, the epidemiological surveys indicate that the state of São Paulo presents 11 species of triatomines, and most of these species have already been collected in a home environment and found to be infected with T. cruzi. Problems in correctly identifying species can lead to incorrect panorama of distribution of Chagas disease vectors. Thus, we developed an identification key for the triatomines of the state of São Paulo, based on cytogenetic data. With the exception of Panstrongylus diasi that does not present cytogenetic data available in the literature, all species were differentiated by cytogenetic characteristics. We emphasize the importance of using this key as a simple and objective tool in the entoepidemiological surveys conducted by the vector control programs.
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Affiliation(s)
- Kelly Cristine Borsatto
- Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBILCE/UNESP), São José do Rio Preto, Brazil
| | - Yago Visinho Dos Reis
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBB/UNESP), Botucatu, Brazil
| | - Ariane Cristina Caris Garcia
- Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBILCE/UNESP), São José do Rio Preto, Brazil
| | - Paulo Sergio de Sousa
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBB/UNESP), Botucatu, Brazil
| | - Maria Tercília Vilela de Azeredo-Oliveira
- Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBILCE/UNESP), São José do Rio Preto, Brazil
| | - Kaio Cesar Chaboli Alevi
- Laboratório de Parasitologia, Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (FCFAR/UNESP), Araraquara, Brazil.,Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBB/UNESP), Botucatu, Brazil.,Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho" (IBILCE/UNESP), São José do Rio Preto, Brazil
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Shi Y, Wei Y, Feng X, Liu J, Jiang Z, Ou F, Wei H, Lv G, Wan X, Wang Z, Yang Y. Distribution, genetic characteristics and public health implications of Triatoma rubrofasciata, the vector of Chagas disease in Guangxi, China. Parasit Vectors 2020; 13:33. [PMID: 31959216 PMCID: PMC6972020 DOI: 10.1186/s13071-020-3903-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 01/08/2020] [Indexed: 12/26/2022] Open
Abstract
Background Triatomines are natural vectors of Chagas disease and are mainly prevalent in the Americas. In China, previous data from decades ago showed that there were two species of triatomine bugs, Triatoma rubrofasciata and T. sinica. However, the distribution, genetic characteristics and public health implications of triatomines in China are still relatively unknown. In order to gain knowledge on the distribution, genetic characteristics and public health implications of the triatomines in Guangxi, China, an entomological-epidemiological study and genetic research was conducted. Methods Different methods were used to elucidate the distribution of triatomines in Guangxi including consultations with county-level Center for Disease Prevention and Control staff and village doctors, the distribution of educational material on triatomines though the internet and social media apps such as Wechat and QQ, and conducting manual inspections and light trapping to collect triatomines. The morphological characteristics of the collected triatomines were identified under light microscopy. The mitochondrial 16S rRNA, cytochrome b (cytb) genes and nuclear 28S rRNA gene were amplified, sequenced and used in phylogenetic analyses. Results A total of 305 triatomines were captured from 54 different sites in 13 cities in Guangxi. All collected bugs were identified as T. rubrofasciata based on morphology. Most triatomine collection sites were around or inside houses. Four triatomines bite cases were observed during the investigation indicating that triatomine bites are common, the bites can cause serious anaphylaxis and skin papules and urticaria, suggesting a systemic skin response. The 16S rRNA, 28S rRNA and cytb sequence analyses of T. rubrofasciata from Guangxi and other countries showed that T. rubrofasciata sequences from different regions exhibit a high similarity, with no geographical differences. The phylogenetic tree based on the 16S rRNA and cytb genes showed that T. rubrofasciata sequences from different regions and continents were in the same cluster, indicating no differentiation among different geographical populations. Conclusions Our study showed that T. rubrofasciata is widely distributed in Guangxi and that people are commonly bitten by this insect in some regions. This highlights the need to enhance surveillance for and control of T. rubrofasciata and to strengthen the monitoring of imported Trypanosoma cruzi in China. The 16S rRNA, 28S rRNA and cytb sequence analyses of T. rubrofasciata from different regions and continents suggested that T. rubrofasciata populations exhibit high similarity, and the clustering in the phylogenetic analyses indicates that T. rubrofasciata has a close ancestor originating in the Americas.
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Affiliation(s)
- Yunliang Shi
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Yaobao Wei
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Xiangyang Feng
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Jianfeng Liu
- Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, China
| | - Zhihua Jiang
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Fangqi Ou
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Haiyan Wei
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Guoli Lv
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Xiaoling Wan
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China
| | - Ziyue Wang
- Guangxi Medical University, Nanning, 530021, China
| | - Yichao Yang
- Institute of Parasitic Disease Prevention and Control, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, 530028, China.
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Molecular cytotaxonomy of the Triatoma brasiliensis species subcomplex (Hemiptera, Triatominae). Acta Trop 2020; 201:105225. [PMID: 31654646 DOI: 10.1016/j.actatropica.2019.105225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022]
Abstract
The Triatoma genus is paraphyletic, and its species are grouped into complexes and subcomplexes. Given the fact that species that make up a given subcomplex generally share chromosomal traits, we analyzed the distribution of AT- and CG-rich DNA of the T. brasiliensis species subcomplex, in order to establish affinities among members of the T. brasiliensis subcomplex based on chromatin and chromosome traits and develop an identification key for the four monophyletic Triatoma subcomplexes from South America. All species exhibited a CG-rich X sex chromosome and autosomes, as well as an AT-rich Y sex chromosome. This feature can be used as a diagnostic characteristic to determine whether a given species is a member of the T. brasiliensis subcomplex, because it enables the differentiation of these species from all Triatoma of South America. Thus, we confirmed the chromosomal relationship of the T. brasiliensis species subcomplex and developed a dichotomous key based on the chromocenter to differentiate the species from this subcomplex from the other monophyletic Triatoma subcomplexes from South America.
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Depickère S, Ramírez-Ávila GM, Deneubourg JL. Alteration of the aggregation and spatial organization of the vector of Chagas disease, Triatoma infestans, by the parasite Trypanosoma cruzi. Sci Rep 2019; 9:17432. [PMID: 31758071 PMCID: PMC6874570 DOI: 10.1038/s41598-019-53966-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 10/23/2019] [Indexed: 11/30/2022] Open
Abstract
Triatominae insects are vectors of the parasite Trypanosoma cruzi, the etiological agent of Chagas disease affecting millions of people in Latin America. Some species, such as Triatoma infestans, live in the human neighborhood, aggregating in walls or roof cracks during the day and going out to feed blood at night. The comprehension of how sex and T. cruzi infection affect their aggregation and geotaxis is essential for understanding their spatial organization and the parasite dispersion. Experiments in laboratory-controlled conditions were carried out with groups of ten adults of T. infestans able to explore and aggregate on a vertical surface. The influence of the sex (male vs. female) and the proportion of infected insects in the group were tested (100% of infected insects vs. a small proportion of infected insects, named infected and potentially weakly infected groups, respectively). Therefore, four distinct groups of insects were tested: infected males, infected females, potentially weakly infected males, and potentially weakly infected females, with 12, 9, 15, and 16 replicates, respectively. The insects presented a high negative geotaxis and a strong aggregation behavior whatever the sex or their infection. After an exploration phase, these behaviors were stable in time. The insects exhibited a preferential vertical position, head toward the top of the setup. Males had a higher negative geotaxis and a higher aggregation level than females. Both behaviors were enhanced in groups of 100% infected insects, the difference between sexes being maintained. According to a comparison between experimental and theoretical results, geotaxis favors the aggregation that mainly results from the inter-attraction between individuals.
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Affiliation(s)
- Stéphanie Depickère
- Laboratorio Entomología Médica, INLASA, La Paz, Bolivia.
- Instituto de Investigaciones Físicas, Universidad Mayor de San Andrés, La Paz, Bolivia.
- The Abdus Salam, International Centre for Theoretical Physics (ICTP), Trieste, Italy.
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Borsatto KC, Alevi KCC, Oliveira J, Azeredo-Oliveira MTV. Cytotaxonomy of Dipetalogaster maxima Uhler, 1894 (Hemiptera, Reduviidae, Triatominae). BRAZ J BIOL 2019; 80:330-335. [PMID: 31721898 DOI: 10.1590/1519-6984.204384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/31/2018] [Indexed: 11/21/2022] Open
Abstract
The Triatomini tribe consists of ten genera and is regarded as one of the most important tribes from epidemiological point of view. The genus Dipetalogaster Usinger, 1939 is composed only by the species Dipetalogaster maxima Uhler, 1894. This triatomine is exclusive of the Mexico and is a potential vector for Chagas disease. Besides the epidemiological importance, the insects of the Triatominae subfamily are important biological models for cytogenetic studies. Therefore, in order to contribute to the knowledge on the reproductive biology and assist in citotaxonomy of D. maxima, this study aimed to describe spermatogenesis, as well as confirm the karyotype and heterochromatic patterns of this Mexican triatomine species. The seminiferous tubules were torn, fixed to a cover slip and underwent the cytogenetic technique of Lacto-acetic orcein and C-banding. Through the cytogenetics analysis of testicular material D. maxima it was possible to confirm the karyotype (2n = 22), describe the stages of spermatogenesis and characterize the heterochromatic pattern (restricted to sex chromosome Y) of the species. D. maxima showed the same arrangement of heterochromatin described for Triatoma lecticularia (Stål, 1859) (a species that occur in United States of American and Mexico and is phylogenetically related with D. maxima), highlighting the importance of this analysis as an optimization tool to explore phylogenetic correlations.
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Affiliation(s)
- K C Borsatto
- Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas - IBILCE, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth, CEP 15054-000, São José do Rio Preto, SP, Brasil
| | - K C C Alevi
- Laboratório de Parasitologia, Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas - FCFAR, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rodovia Araraquara-Jaú, Km 1, CEP 14801-902, Araraquara, SP, Brasil
| | - J Oliveira
- Laboratório de Parasitologia, Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas - FCFAR, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rodovia Araraquara-Jaú, Km 1, CEP 14801-902, Araraquara, SP, Brasil
| | - M T V Azeredo-Oliveira
- Laboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas - IBILCE, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth, CEP 15054-000, São José do Rio Preto, SP, Brasil
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Dos Santos Souza É, Fernandes RP, Galvão C, de Paiva VF, da Rosa JA. Distinguishing two species of Cavernicola (Hemiptera, Reduviidae, Triatominae) with matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Acta Trop 2019; 198:105071. [PMID: 31323194 DOI: 10.1016/j.actatropica.2019.105071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/18/2019] [Accepted: 06/26/2019] [Indexed: 11/20/2022]
Abstract
The blood-sucking insects of the subfamily Triatominae are vectors of Chagas disease, the most impairing protozoan parasitic infection in Latin America. Among the five tribes known in the subfamily, one of the least studied is Cavernicolini. It has only two species within Cavernicola genus (Barber, 1937), little is known about the biochemistry of the species of this genus, therefore, using MALDI-TOF MS we provide a better understanding of the two species and differentiates them. The distinction was made by the different spectral profile of the species, where C. lenti presents unique signals in many regions, while the C. pilosa shows high-intensity signals and m/z in high bands. The application of digital mass spectrometry combined with chemometric methods was able to accurately distinguish two species of the genus Cavernicola.
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Affiliation(s)
- Éder Dos Santos Souza
- Faculdade de Ciencias Farmacêuticas, Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP), Araraquara, SP, Brasil
| | - Richard Perosa Fernandes
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Instituto de Química, Araraquara, SP, Brasil
| | - Cleber Galvão
- Laboratorio Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, FIOCRUZ, RJ, Brasil.
| | | | - João Aristeu da Rosa
- Faculdade de Ciencias Farmacêuticas, Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP), Araraquara, SP, Brasil
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Sandoval Ramírez CM, Nieves Blanco E, Esteban Adarme L, Angulo Silva VM, Otálora-Luna F, Galvão C, Catalá S. Comparative Study of the Antennal Phenotype in Species of the Belminus (Hemiptera: Triatominae) Genus Using Optical and Scanning Electron Microscopy. JOURNAL OF MEDICAL ENTOMOLOGY 2019; 56:1260-1269. [PMID: 31329909 DOI: 10.1093/jme/tjz053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Indexed: 06/10/2023]
Abstract
The genus Belminus Stål, 1859 is distinguished by markedly entomophagous species. This genus is a poorly studied group of the Triatominae (Jeannel, 1919), which includes hematophagous species that are vectors of Trypanosoma cruzi (Chagas, 1909), the etiological agent of Chagas disease. This study reports for the first time the description of the antennal sensilla of Belminus corredori (Galvão & Angulo, 2003), Belminus herreri (Lent & Wygodzinsky, 1979), and Belminus ferroae (Sandoval, Pabón, Jurberg & Galvão, 2007) nymphs and adults throughout scanning electron microscopy and optical microscopy. Nine morphological types of sensilla were identified in the three species, including bristles I and II, trichobothria, tapered hairs, thin-walled trichoid, thick-walled trichoid, basiconic, campaniform, and coeloconica sensilla. The analysis of the most abundant types of sensilla and their distribution in nymphs and adults shows similarities with the antennal phenotypes described in other Triatominae. Quantitative differences showed the important phenotypic plasticity of this morphological trait in the genus and allowed for the separation of the species in both sexes. These differences were associated with sexual dimorphism and wing condition (macropterous and brachypterous). The role of the antennal phenotype in sexual behavior, its usefulness as a taxonomic tool, and its relationship with the dispersal capacity of these species are discussed.
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Affiliation(s)
- Claudia Magaly Sandoval Ramírez
- Facultad de Ciencias Exactas, Naturales y Agropecuarias, Grupo de Investigaciones en Ciencias Básicas y Aplicadas para la Sostenibilidad (CIBAS), Universidad de Santander, Bucaramanga, Colombia
- Facultad de Ciencias, Laboratorio de Parasitología Experimental (LAPEX), Universidad de los Andes, Mérida, República Bolivariana de Venezuela
| | - Elsa Nieves Blanco
- Facultad de Ciencias, Laboratorio de Parasitología Experimental (LAPEX), Universidad de los Andes, Mérida, República Bolivariana de Venezuela
| | - Lida Esteban Adarme
- Centro de Investigaciones en Enfermedades Tropicales CINTROP-UIS, Universidad Industrial de Santander, Santander, Colombia
| | - Víctor M Angulo Silva
- Centro de Investigaciones en Enfermedades Tropicales CINTROP-UIS, Universidad Industrial de Santander, Santander, Colombia
| | - Fernando Otálora-Luna
- Facultad de Ciencias, Laboratorio de Entomología 'Herman Lent', Universidad de Los Andes, Mérida, República Bolivariana de Venezuela
- Department of Biology, School of Art & Sciences, University of Richmond, Richmond, VA
| | - Cleber Galvão
- Fundação Oswaldo Cruz, Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Silvia Catalá
- Centro Regional de Investigación Científica y Transferencia Tecnológica de La Rioja, CRILAR-CONICET, Anillaco, Argentina
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Hu Y, Gao MZ, Huang P, Zhou HL, Ma YB, Zhou MY, Cheng SY, Xie HG, Lv ZY. Taxonomic integrative and phylogenetic identification of the first recorded Triatoma rubrofasciata in Zhangzhou, Fujian Province and Maoming, Guangdong Province, China. Infect Dis Poverty 2019; 8:70. [PMID: 31409377 PMCID: PMC6693202 DOI: 10.1186/s40249-019-0579-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 07/19/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Most species of Triatominae live exclusively in Latin America. However, one species, Triatoma rubrofasciata, has been recorded in the Americas as well as in various port areas in Africa and Asia. An increasing number of T. rubrofasciata have been reported in southern China in recent years. However, the origin of this invasive insect vector in China remains unknown, therefore, accurate identification and phylogenetic analysis of the bugs are urgently needed. METHODS A total of seven triatomine insect specimens were found and collected from Maoming City, Guangdong Province, China (GDMM) and Zhangzhou City, Fujian Province, China (FJZZ), respectively. The obtained insect vector specimens were observed under a dissecting microscope for morphological classification and then the genomic DNA was extracted, and the 16S ribosomal RNA (rRNA), 28S rRNA as well as cytochrome oxidase subunit I (COI) genes of the species were amplified and sequenced. Subsequently, molecular phylogenetic analyses based on multiple alignments of the above genes were conducted in order to identify the species and determine the phylogenetic origin approximation accurately. RESULTS The triatomine insects collected from GDMM and FJZZ were identified as Triatoma rubrofasciata using morphological and genetic analyses. All of the Chinese T. rubrofasciata captured in FJZZ, GDMM and other localities in southern China, together with a Vietnamese and Brazilian strain, formed a new, cohesive clade. T. rubrofasciata in GDMM and FJZZ are likely derived from strains found in Vietnam or Brazil. CONCLUSIONS To the best of our knowledge, this is the first record of the invasive insect T. rubrofasciata, which is likely derived from strains native to Vietnam or Brazil, in both Maoming City, Guangdong Province and Zhangzhou City, Fujian Province of China. A comparison of the DNA sequences of the 16 s rRNA, 28 s rRNA and COI genes confirmed the specific identification of T. rubrofasciata, and its potential origin in China is based on the phylogenetic analyses undertaken in this study. More targeted interventions and improved entomological surveillance are urgently needed to control the spread of this haematophagous insect in China.
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Affiliation(s)
- Yue Hu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Min-Zhao Gao
- Department of Gastroenterology of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Ping Huang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Hong-Li Zhou
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Yu-Bin Ma
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Min-Yu Zhou
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Shao-Yun Cheng
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China
| | - Han-Guo Xie
- Fujian Center for Disease Control and Prevention, Fuzhou, 350001, China.
| | - Zhi-Yue Lv
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China. .,Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China. .,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080, China.
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Zhao Y, Jiang M, Wu Y, Song F, Cai W, Li H. Mitochondrial genomes of three kissing bugs (Reduviidae: Triatominae) and their phylogenetic implications. Int J Biol Macromol 2019; 134:36-42. [DOI: 10.1016/j.ijbiomac.2019.05.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/04/2019] [Accepted: 05/04/2019] [Indexed: 01/19/2023]
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