Genetic structure of brazilian populations of triatoma sordida (stal, 1859) (hemiptera, triatominae) by means of chromosomal markers

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dc.contributor.authorMadeira, Fernanda Fernandez [UNESP]
dc.contributor.authorDos Reis, Yago Visinho [UNESP]
dc.contributor.authorDe Freitas Bittinelli, Isadora [UNESP]
dc.contributor.authorDelgado, Luiza Maria Grzyb [UNESP]
dc.contributor.authorDe Oliveira, Jader [UNESP]
dc.contributor.authorMendonça, Vagner José
dc.contributor.authorMoreira, Felipe Ferraz Figueiredo
dc.contributor.authorDe Azeredo-Oliveira, Maria Tercília Vilela [UNESP]
dc.contributor.authorDa Rosa, João Aristeu [UNESP]
dc.contributor.authorAlevi, Kaio Cesar Chaboli [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal Do Piauí (UFPI)
dc.contributor.institutionInstituto Oswaldo Cruz
dc.date.accessioned2019-10-06T16:25:31Z
dc.date.available2019-10-06T16:25:31Z
dc.date.issued2019-01-01
dc.description.abstractTriatoma sordida is among the main Brazilian species considered as Chagas disease vectors. The genetic studies are directed mainly to phylogenetic questions because this species possibly have suffered cryptic speciation. Furthermore, there are few studies that analyzed the structure and genetic variability of specimens from Brazil and that showed low genetic diversity and strong genetic structuring of the population samples. Therefore, because of great epidemiological importance of T. sordida and mainly the restriction of genetic characterization of this vector only for populations of Minas Gerais state, this article performs a genetic analysis of the T. sordida from seven different Brazilian states (representing different biomes), by means of cytogenetic markers. All analyzed specimens presents the same cytogenetic characteristics: Early meiotic prophase with several heterochromatic bodies dispersed in the nucleus (CGrich), being one of them formed by the associated sex chromosomes surrounded by some autosomal heterochromatic regions, meiotic metaphase with most autosomal pairs exhibiting a C-heterochromatic block in one chromosomal end (CG-rich), Y sex chromosome fully heterochromatin (AT-rich), and X chromosome may present a small C-block (CG-rich). These results are important because the chromosomal markers enable to confirm and expand the low genetic diversity for all Brazilian states occupied by T. sordida, suggesting that all Brazilian populations were originated from a small ancestral population and possibly dispersed to other biomes by founder effect. In addition, we suggest that T. sordida from Brazil are not suffering cryptic speciation and we confirm the classification of all Brazilian examples as T. sordida sensu stricto.en
dc.description.affiliationDepartamento de Biologia Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista 'Júlio de Mesquita Filho' (IBILCE/UNESP)
dc.description.affiliationDepartamento de Ciências Biológicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista 'Júlio de Mesquita Filho' (FCFAR/UNESP)
dc.description.affiliationDepartamento de Parasitologia e Microbiologia Centro de Ciências da Saúde Universidade Federal Do Piauí (UFPI)
dc.description.affiliationLaboratório de Biodiversidade Entomológica Instituto Oswaldo Cruz
dc.description.affiliationUnespDepartamento de Biologia Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista 'Júlio de Mesquita Filho' (IBILCE/UNESP)
dc.description.affiliationUnespDepartamento de Ciências Biológicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista 'Júlio de Mesquita Filho' (FCFAR/UNESP)
dc.format.extent907-910
dc.identifierhttp://dx.doi.org/10.4269/ajtmh.18-0336
dc.identifier.citationAmerican Journal of Tropical Medicine and Hygiene, v. 100, n. 4, p. 907-910, 2019.
dc.identifier.doi10.4269/ajtmh.18-0336
dc.identifier.issn0002-9637
dc.identifier.scopus2-s2.0-85064239550
dc.identifier.urihttp://hdl.handle.net/11449/188968
dc.language.isoeng
dc.relation.ispartofAmerican Journal of Tropical Medicine and Hygiene
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleGenetic structure of brazilian populations of triatoma sordida (stal, 1859) (hemiptera, triatominae) by means of chromosomal markersen
dc.typeArtigo

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Artigos - Biologia - IBILCE
Artigos - Ciências Biológicas - FCFAR