Lack of parthenogenesis by Amblyomma cajennense (Acari: Ixodidae)

Memórias do Instituto Oswaldo Cruz

Carolina Mv De Freitas¹  Romário C Leite¹  Cristina Ml Lopes¹  Daniel S Rodrigues¹  Gustavo Fontes Paz¹  Paulo R De Oliveira¹ 

[1] ,Universidade Federal de Minas Gerais Escola de Veterinária Laboratório de EctoparasitosesBelo Horizonte MG ,Brasil

关键词: Amblyomma cajennense;    ticks;    Ixodidae;    reproduction;    parthenogenesis;   

DOI  :  10.1590/S0074-02762002000600016

来源: SciELO

【 摘 要 】

Some reproductive parameters of adult stages of Amblyomma cajennense ticks were studied. The capacity of virgin females to reproduce by parthenogenesis was evaluated, during an experimental infestation, in absence of males, on a horse (Equus cabalus). Ticks were spread either completely free or in limited sites on the body of the animal. The engorged virgin females showed longer feeding periods and lighter body weights than those that had been fertilized. Some of these unmated females produced smaller egg masses, which had no embryonary development. On the other hand, females that had been inseminated produced larger egg masses, with normal embryonary development that led to viable larvae. Under the studied conditions, A. cajennense females did not reproduce by parthenogenesis.

【 授权许可】

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