New histochemical and morphological findings in the female genital tract of Boophilus microplus (Acari, Ixodidae): an attempt toward the elucidation of fertilization in ticks

Iheringia. Série Zoologia

Casimiro García-fernández²  Sonia M. Lauer Garcia²  Rosane Nunes Garcia¹  Vera L. Da Silva Valente¹ 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Ciências Básicas da Saúde Departamento de Ciências MorfológicasPorto Alegre RS ,Brazil

关键词: Acari;    ticks;    female reproductive system;    fertilization;    Acari;    carrapatos;    aparelho reprodutor feminino;    fertilização;   

DOI  :  10.1590/S0073-47212005000300009

来源: SciELO

【 摘 要 】

At present not only is the site of fertilization in ticks still unknown but it is also unclear as to how this mystery can be solved. Signs of fertilization can be observed throughout the female genital tract and these can be clues for the elucidation of the unsolved questions relating to ticks fertilization. In Boophilus microplus (Canestrini, 1887) the most important signs are the following: the final eversion of the acrosomal canal in females ready for oviposition; the presence of small tubules, resembling the subplasmalemal process of the spermatozoon between the oviduct cells; budding nuclei throughout the female genital tract; and the two Feulgen and DAPI positive areas in the oocyte at vitelogenesis. These morphological characteristics suggest that fertilization takes place in the internal cylinder which extends from the uterus to the ovary itself.

【 授权许可】

CC BY   
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