A Third Amblyomma Species and the First Tick-Borne Rickettsia in Chile

被引：38

作者：

Abarca, Katia ^{[2
]}

Lopez, Javier ^{[3
]}

Acosta-Jamett, Gerardo ^{[4
,5
]}

Lepe, Paulina ^{[3
]}

Soares, Joao Fabio ^{[1
]}

Labruna, Marcelo B. ^{[1
]}

机构：

[1] Univ Sao Paulo, Fac Med Vet & Zootecnia, Sao Paulo, Brazil

[2] Pontificia Univ Catolica Chile, Fac Med, Santiago, Chile

[3] Hosp Vet Puente Alto, Santiago, Chile

[4] Univ Austral Chile, Inst Med Prevent Vet, Fac Ciencias Vet, Valdivia, Chile

[5] Univ Austral Chile, Programa Invest Aplicada Fauna Silvestre, Fac Ciencias Vet, Valdivia, Chile

来源：

JOURNAL OF MEDICAL ENTOMOLOGY | 2012年 / 49卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Amblyomma triste; Amblyomma maculatum; Rickettsia andeanae; Chile; FEVER GROUP RICKETTSIAE; 16S RDNA SEQUENCES; UNITED-STATES; IXODIDAE; PARKERI; ACARI; MACULATUM; ARGASIDAE; TRISTE; BRAZIL;

D O I：

10.1603/ME11147

中图分类号：

Q96 [昆虫学];

学科分类号：

090404 [昆虫学];

摘要：

During November 2010, three ticks were collected from three dogs living in the rural area of Arica, northern Chile. Morphological analyses of the ticks in the laboratory revealed that they were most similar to Amblyomma maculatum Koch and Amblyomma triste Koch. However, because of unique metatarsal spurs, neither of the Chilean specimens could be assigned with certainty to A. maculatum or A. triste, based on external morphology. The mitochondrial 16S rRNA gene partial sequences obtained from two Chilean specimens were 99.5% identical to A. triste from Uruguay, and 99.0% identical to A. maculatum from the United States. Through phylogenetic analysis inferred from partial 16S rRNA sequences, the Chilean specimens were classified as A. triste. Molecular analyses also showed that one of the three Chilean ticks was infected by Candidatus 'Rickettsia andeanae'. These findings extend the geographical distribution of A. triste to Chile, where no tick-associated rickettsia had been reported previously.

引用

页码：219 / 222

页数：4

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