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Molecular cytotaxonomy of the Triatoma brasiliensis species subcomplex (Hemiptera, Triatominae)

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Autor(es):
Chaboli Alevi, Kaio Cesar ; Bittinelli, Isadora de Freitas ; Grzyb Delgado, Luiza Maria ; Madeira, Fernanda Fernandez ; de Oliveira, Jader ; Lilioso, Mauricio ; Folly-Ramos, Elaine ; da Rosa, Joao Aristeu ; Vilela Azeredo-Oliveira, Maria Tercilia
Número total de Autores: 9
Tipo de documento: Artigo Científico
Fonte: Acta Tropica; v. 201, p. 3-pg., 2020-01-01.
Resumo

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. (AU)

Processo FAPESP: 13/19764-0 - Citotaxonomia e evolução cromossômica na subfamília Triatominae
Beneficiário:Kaio Cesar Chaboli Alevi
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 17/21359-8 - Abordagens moleculares integradas para elucidar associações ecológicas de Triatoma brasiliensis: fontes alimentares, microbiota e diversidade de Trypanosoma cruzi
Beneficiário:Maurício Lilioso de Lucena Filho
Modalidade de apoio: Bolsas no Brasil - Doutorado