Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil.
Innovative approaches used to combat Chagas disease transmission tend to combine a set of comprehensive efforts to understand the ecology of local vectors. In this work we identified molecularly the blood meal of 181 Triatoma brasiliensis, distributed in 18 populations (8 sylvatic and 10 peridomesti...
Published in: | PLOS Neglected Tropical Diseases |
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ftdoajarticles:oai:doaj.org/article:f602fc1a805f46bfbd946077fd0de09b 2023-05-15T15:09:18+02:00 Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. Maurício Lilioso Carolina Reigada Dayane Pires-Silva Fernanda von H M Fontes Cleanne Limeira Jackeline Monsalve-Lara Elaine Folly-Ramos Myriam Harry Jane Costa Carlos Eduardo Almeida 2020-09-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0008735 https://doaj.org/article/f602fc1a805f46bfbd946077fd0de09b EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pntd.0008735 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0008735 https://doaj.org/article/f602fc1a805f46bfbd946077fd0de09b PLoS Neglected Tropical Diseases, Vol 14, Iss 9, p e0008735 (2020) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2020 ftdoajarticles https://doi.org/10.1371/journal.pntd.0008735 2022-12-31T13:50:13Z Innovative approaches used to combat Chagas disease transmission tend to combine a set of comprehensive efforts to understand the ecology of local vectors. In this work we identified molecularly the blood meal of 181 Triatoma brasiliensis, distributed in 18 populations (8 sylvatic and 10 peridomestic), which were collected across a range of 240 km (East-West) and 95 km (North-South) in the semi-arid region of northeastern, Brazil. We used the vertebrate mitochondrial gene (cytochrome B) sequencing applied to DNA isolated from bug midgut to identify the insect blood meal sources via the BLAST procedure. The peridomestic populations were classified according to two main hypotheses of site-occupancy for T. brasiliensis: the first says that the infestation is mainly driven by structures that resemble its natural habitat (stony-like ecotopes) and the second assumes that it is associated with key-hosts (rodents and goats). Rodents of the Caviidae family (Galea spixii and Kerodon rupestris) were identified as the key-host of T. brasiliensis, but also the potential Trypanosoma cruzi reservoir-able to connect the sylvatic and domestic T. cruzi cycle. Cats also deserve to be studied better, as potential T. cruzi reservoirs. By modeling the food sources + site-occupancy + T. cruzi natural infection, we identified man-made ecotopes suitable for forming dense triatomine infestations with high rates of T. cruzi natural infection, which may be taken into account for vector control measures. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLOS Neglected Tropical Diseases 14 9 e0008735 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Maurício Lilioso Carolina Reigada Dayane Pires-Silva Fernanda von H M Fontes Cleanne Limeira Jackeline Monsalve-Lara Elaine Folly-Ramos Myriam Harry Jane Costa Carlos Eduardo Almeida Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Innovative approaches used to combat Chagas disease transmission tend to combine a set of comprehensive efforts to understand the ecology of local vectors. In this work we identified molecularly the blood meal of 181 Triatoma brasiliensis, distributed in 18 populations (8 sylvatic and 10 peridomestic), which were collected across a range of 240 km (East-West) and 95 km (North-South) in the semi-arid region of northeastern, Brazil. We used the vertebrate mitochondrial gene (cytochrome B) sequencing applied to DNA isolated from bug midgut to identify the insect blood meal sources via the BLAST procedure. The peridomestic populations were classified according to two main hypotheses of site-occupancy for T. brasiliensis: the first says that the infestation is mainly driven by structures that resemble its natural habitat (stony-like ecotopes) and the second assumes that it is associated with key-hosts (rodents and goats). Rodents of the Caviidae family (Galea spixii and Kerodon rupestris) were identified as the key-host of T. brasiliensis, but also the potential Trypanosoma cruzi reservoir-able to connect the sylvatic and domestic T. cruzi cycle. Cats also deserve to be studied better, as potential T. cruzi reservoirs. By modeling the food sources + site-occupancy + T. cruzi natural infection, we identified man-made ecotopes suitable for forming dense triatomine infestations with high rates of T. cruzi natural infection, which may be taken into account for vector control measures. |
format |
Article in Journal/Newspaper |
author |
Maurício Lilioso Carolina Reigada Dayane Pires-Silva Fernanda von H M Fontes Cleanne Limeira Jackeline Monsalve-Lara Elaine Folly-Ramos Myriam Harry Jane Costa Carlos Eduardo Almeida |
author_facet |
Maurício Lilioso Carolina Reigada Dayane Pires-Silva Fernanda von H M Fontes Cleanne Limeira Jackeline Monsalve-Lara Elaine Folly-Ramos Myriam Harry Jane Costa Carlos Eduardo Almeida |
author_sort |
Maurício Lilioso |
title |
Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
title_short |
Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
title_full |
Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
title_fullStr |
Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
title_full_unstemmed |
Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil. |
title_sort |
dynamics of food sources, ecotypic distribution and trypanosoma cruzi infection in triatoma brasiliensis from the northeast of brazil. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2020 |
url |
https://doi.org/10.1371/journal.pntd.0008735 https://doaj.org/article/f602fc1a805f46bfbd946077fd0de09b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 14, Iss 9, p e0008735 (2020) |
op_relation |
https://doi.org/10.1371/journal.pntd.0008735 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0008735 https://doaj.org/article/f602fc1a805f46bfbd946077fd0de09b |
op_doi |
https://doi.org/10.1371/journal.pntd.0008735 |
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PLOS Neglected Tropical Diseases |
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14 |
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9 |
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e0008735 |
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