Morphological and molecular analysis of Ornithonyssus spp. (Acari: Macronyssidae) from small terrestrial mammals in Brazil

Autor(es)

Nieri-Bastos, Fernanda A. ^[1] ; Labruna, Marcelo B. ^[1] ; Marcili, Arlei ^[1] ; Durden, Lance A. ^[2] ; Mendoza-Uribe, Leonardo ^[3] ; Barros-Battesti, Darci M. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Med Vet Prevent & Saude Anim, Fac Med Vet & Zootecnia, Sao Paulo - Brazil

^[2] Georgia So Univ, Dept Biol, Statesboro, GA 30460 - USA

^[3] Inst Nacl Salud, Div Entomol, Ctr Nacl Lab Salud Publ, Lima - Peru

^[4] Inst Butantan, Parasitol Lab, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Experimental and Applied Acarology; v. 55, n. 4, p. 305-327, DEC 2011.
• Citações Web of Science: 5

Resumo

Based on chaetotaxy of the dorsal shield, the taxonomic status of many species of Ornithonyssus has been considered invalid, resulting in the synonymy of all Brazilian Ornithonyssus from small terrestrial wild mammals into one of the following four species: Ornithonyssus bacoti (Hirst, 1913), Ornithonyssus matogrosso (Fonseca, 1954), Ornithonyssus pereirai (Fonseca, 1935) or Ornithonyssus wernecki (Fonseca, 1935). Despite the revision of this genus in 1980, including all known species worldwide, the knowledge of Ornithonyssus in Brazil has not progressed for more than 40 years. Considering the potential importance of these haematophagous mites in transmitting rickettsial disease agents to animals and humans, we have revised Ornithonyssus species collected from small mammals in Brazil by means of morphological and molecular studies. Types and other material deposited in the Acari Collection of the Instituto Butantan (IBSP) were examined in addition to recently collected specimens. Morphological and genetic analysis of the 16S rDNA mitochondrial gene revealed that small terrestrial mammals in Brazil are parasitized by six species of Ornithonyssus mites: Ornithonyssus brasiliensis (Fonseca, 1939), O. matogrosso, O. monteiroi (Fonseca, 1941), O. pereirai, O. vitzthumi (Fonseca, 1941), and O. wernecki. An illustrated key to females of the valid Brazilian species of Ornithonyssus is included, based on optical and scanning electron microscopy. (AU)

• Processo FAPESP: 07/57749-2 - Cultura de celulas embrionarias de carrapatos (acari: ixodidae, argasidae) para isolamento e cultivo de patogenos.
• Beneficiário: Darci Moraes Barros-Battesti
• Modalidade de apoio: Auxílio à Pesquisa - Regular