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Testicular and Color Variation in the Kissing Bug, Rhodnius brethesi, in Amazonas, Brazil

Freitas, Simone P.C. ; Bonifácio, Sandra F. ; Junqueira, Ângela C.V. ; Souza, Ana L.B. ; Gonçalves, Teresa C.M.

Journal of insect science (Tucson, Ariz.), 2012, Vol.12 (65), p.1-11 [Periódico revisado por pares]

United States: University of Wisconsin Library

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  • Título:
    Testicular and Color Variation in the Kissing Bug, Rhodnius brethesi, in Amazonas, Brazil
  • Autor: Freitas, Simone P.C. ; Bonifácio, Sandra F. ; Junqueira, Ângela C.V. ; Souza, Ana L.B. ; Gonçalves, Teresa C.M.
  • Assuntos: Anatomic Variation ; Animals ; Arecaceae ; Arecales ; Blood ; Brazil ; Cameras ; Color ; Fasting ; Follicles ; Geographical distribution ; Hemiptera ; Male ; male reproductive system ; Mice ; morphology ; Photoperiods ; Pigmentation ; Reduviidae ; Rhodnius ; Rhodnius - anatomy & histology ; Testes ; Testis ; Testis - anatomy & histology ; Triatominae ; vector ; Veterinary physiology
  • É parte de: Journal of insect science (Tucson, Ariz.), 2012, Vol.12 (65), p.1-11
  • Notas: ObjectType-Article-1
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    Editor: Carla Penz was Editor of this paper.
  • Descrição: Because of the morphological and morphometric variation of testicular follicles in different genera of the subfamily Triatominae, it was of interest to associate those parameters with the different medial pronotal band patterns (wide and narrow) found in Rhodnius brethesi (Matta) (Hemiptera: Reduviidae). This is a wild species often associated with Leopoldina piassaba Wallace (Arecales: Arecaceae) palm, with a geographical distribution restricted to the Amazon region. The specimens used were from the state of Amazonas, and were kept under conditions of 29 ± 1 °C, 80 ± 5% RH, 12:12 L:D photoperiod, and were fed weekly on blood from Swiss mice. Three—day—old fasting males were separated in accordance with the patterns of the medial pronotal band, dissected, and the testicles removed. After removal of the testicular membrane, the follicles were spread, drawn by camera lucida, and measured. The results showed that the testis of R. brethesi consists of seven follicles, divided into two groups by length; two long and five short. In specimens with a wide medial pronotal band, the long follicles were 5.4 mm in length, but in specimens with a narrow medial band, the long follicles were 5.64 mm in length. The difference was significant. The short follicles were not different in length, suggesting the presence of a possible complex “brethesi” in the Amazon region.
  • Editor: United States: University of Wisconsin Library
  • Idioma: Inglês
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