Species structure of sand fly (Diptera: Psychodidae) fauna in the Brazilian western Amazon

Gil, Luiz Herman Soares; Araújo, Maísa da Silva; Villalobos, Juan Miguel; Camargo, Luís Marcelo Aranha; Ozaki, Luiz Shozo; Fontes, Cor Jésus Fernandes; Ribolla, Paulo Eduardo Martins; Katsuragawa, Tony Hiroshi; Cruz, Rafael Mesquita Bastos; Silva, Alexandre de Almeida e; Silva, Luiz Hildebrando Pereira da

doi:10.1590/s0074-02762009000700002

Cited by 17 publications

(22 citation statements)

References 28 publications

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“…In the present study L. acanthopharynx, L. whitmani, L. geniculata and L. davisi together represented 58.7% of all the sandflies caught. According to Gil et al 3,4 , the species L. davisi and L. whitmani were the most abundant, and were the vectors closely associated with ACL transmission around the region, along with other predominant species such as L. umbratilis, L. llanosmartinsi, L. dendrophyla, L. nevesi, P. carrerai and P. hirsutus.…”

Section: Resultsmentioning

confidence: 99%

“…The knowledge of the phlebotomine sandfly fauna in Rondônia remains still insufficient, while the last surveys regarding the phlebotomine sandfly population has reported new occurrences of its species 3,4 .…”

Section: Resultsmentioning

confidence: 99%

“…One-hundred and six (106) species of Lutzomyia and three species of Brumptomyia were recorded in the State of Rondônia [2][3][4] . According to Shaw et al 5 , the most prevalent Leishmania species found in humans in the State of Rondônia are Leishmania (Viannia) braziliensis, L. (V.) lainsoni and L. (V.) guyanensis.…”

Section: Introductionmentioning

confidence: 99%

“…One of the challenges regarding the ACL control and diagnosis is the lack of knowledge about the epidemiologic conditions, specially the study on the distribution of the phlebotomine sandflies population, the frequency and the characterization of its species, although some studies have already been carried out on the occurrence of phlebotomine sandflies and ACL in the State of Rondônia 3,4,7,8 .…”

Section: Introductionmentioning

confidence: 99%

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Tetracycline and trimethoprim/sulfamethoxazole at clinical laboratory: can they help to characterize Staphylococcus aureus carrying different SCCmec types?

Teles

Basano

Zagonel-Oliveira

et al. 2013

Rev. Soc. Bras. Med. Trop.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tetracycline and trimethoprim/sulfamethoxazole at clinical laboratory: can they help to characterize Staphylococcus aureus carrying different SCCmec types?

Teles

Basano

Zagonel-Oliveira

et al. 2013

Rev. Soc. Bras. Med. Trop.

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“…The only study on the sandfly fauna of caves in the Brazilian Amazonian region was conducted in the municipality of Presidente Figueiredo, state of Amazonas (ALVES et al, 2011). In the state of Rondônia, there are very few studies about these insects and none relating to cave environments (BIANCARDI et al, 1982;GIL et al, 2003GIL et al, , 2009GALARDO et al, 2015;TELES et al, 2013). Therefore, the present study was the first project conducted in Rondônia with the aims of studying sandfly fauna in caves and ascertaining whether any proven or potential vectors of leishmaniasis were present in caves.…”

Section: Introductionmentioning

confidence: 99%

Sandfly fauna (Diptera: Psychodidae) from caves in the state of Rondônia, Brazil

Ogawa

Júnior

Resadore

et al. 2016

Rev. Bras. Parasitol. Vet.

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This study had the aim of ascertaining the sandfly fauna and possible presence of Leishmania in these insects, collected in caves in the state of Rondônia, Brazil. Collections were conducted in eight caves located in two different areas of this state. Leishmania in the sandflies collected was detected using the polymerase chain reaction (PCR). This was the first study on sandflies from caves in Rondônia and, among the total of 1,236 individuals collected, 24 species and 10 genera were identified. The species Evandromyia georgii was collected for the first time in Rondônia and the most abundant species were Trichophoromyia ubiquitalis with 448 individuals (36.2%), followed by T. octavioi with 283 (22.9%) and E. georgii with 179 (14.5%). For the PCR, 17 pools were analyzed and five pools were positive (for T. auraensis in three pools and for Nyssomyia shawi and N. antunesi in one pool each). The kDNA region was amplified and the presence of Leishmania DNA was confirmed. The sandfly fauna in these caves can be considered diverse in comparison with similar studies in other regions. It may be that some species use caves as a temporary shelter and breeding site, while other species live exclusively in this environment. The detection of Leishmania DNA indicates that this pathogen is circulating in cave environments and that further studies are needed in order to ascertain the risks of infection by leishmaniasis in these locations with high touristic potential.Keywords: Caves, sandflies, Rondônia, Amazon. ResumoO objetivo deste estudo foi conhecer a fauna de flebotomíneos, e possível presença de Leishmania nestes insetos, coletados em cavernas do Estado de Rondônia. As coletas foram realizadas em oito cavernas localizadas em duas áreas diferentes do Estado. A detecção de Leishmania nos flebotomíneos foi realizada por reação em cadeia da polimerase (PCR). Este foi o primeiro trabalho com flebotomíneos em cavernas de Rondônia e um total de 1,236 indivíduos foram coletados e identificados em 24 espécies e 10 gêneros. Evandromyia georgii foi coletada pela primeira vez em Rondônia, e as espécies mais abundantes foram Trichophoromyia ubiquitalis com 448 indivíduos (36.2%) seguida por T. octavioi com 283 (22.9%) e E. georgii com 179 (14.5%). No estudo de PCR, 17 pools foram analisados, sendo cinco positivos (T. auraensis -3, Nyssomyia shawi e N. antunesi -1 cada). A região do kDNA foi amplificada confirmando a presença de DNA de Leishmania. A fauna de flebotomíneos nestas cavernas foi considerada diversa quando comparada com estudos semelhantes de outras regiões. É possível que algumas espécies utilizem cavernas como abrigo temporário e local de procriação e outras sejam exclusivas deste ambiente. A detecção de DNA de Leishmania indica que este patógeno está circulando no ambiente cavernícola, sendo necessários mais estudos para conhecer o risco de transmissão de leishmanioses nestes locais com alto potencial turístico.Palavras-chave: Cavernas, flebotomíneos, Rondônia, Amazônia.

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Multiple evolutionary lineages for the main vector of Leishmania guyanensis, Lutzomyia umbratilis (Diptera: Psychodidae), in the Brazilian Amazon

Scarpassa

Cunha-Machado

Alencar

2021

Sci Rep

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Lutzomyia umbratilis is the main vector of Leishmania guyanensis in the Brazilian Amazon and in neighboring countries. Previous biological and molecular investigations have revealed significant differences between L. umbratilis populations from the central Brazilian Amazon region. Here, a phylogeographic survey of L. umbratilis populations collected from nine localities in the Brazilian Amazon was conducted using two mitochondrial genes. Statistical analyses focused on population genetics, phylogenetic relationships and species delimitations. COI genetic diversity was very high, whereas Cytb diversity was moderate. COI genealogical haplotypes, population structure and phylogenetic analyses identified a deep genetic differentiation and three main genetic groups. Cytb showed a shallower genetic structure, two main haplogroups and poorly resolved phylogenetic trees. These findings, allied to absence of isolation by distance, support the hypothesis that the Amazon and Negro Rivers and interfluves are the main evolutionary forces driving L. umbratilis diversification. The main three genetic groups observed represent three evolutionary lineages, possibly species. The first lineage occurs north of the Amazon River and east of Negro River, where Le. guyanensis transmission is intense, implying that L. umbratilis is an important vector there. The second lineage is in the interfluve between north of Amazon River and west of Negro River, an area reported to be free of Le. guyanensis transmission. The third lineage, first recorded in this study, is in the interfluve between south of Amazonas River and west of Madeira River, and its involvement in the transmission of this parasite remains to be elucidated.

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Species structure of sand fly (Diptera: Psychodidae) fauna in the Brazilian western Amazon

Cited by 17 publications

References 28 publications

Tetracycline and trimethoprim/sulfamethoxazole at clinical laboratory: can they help to characterize Staphylococcus aureus carrying different SCCmec types?

Tetracycline and trimethoprim/sulfamethoxazole at clinical laboratory: can they help to characterize Staphylococcus aureus carrying different SCCmec types?

Sandfly fauna (Diptera: Psychodidae) from caves in the state of Rondônia, Brazil

Multiple evolutionary lineages for the main vector of Leishmania guyanensis, Lutzomyia umbratilis (Diptera: Psychodidae), in the Brazilian Amazon

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