Issue |
Parasite
Volume 13, Number 1, March 2006
|
|
---|---|---|
Page(s) | 75 - 77 | |
DOI | https://doi.org/10.1051/parasite/2006131075 | |
Published online | 15 March 2006 |
Note de recherche
The chromosomes of Rodentolepis nana (Siebold, 1852) Spasskii, 1954 obtained from naturally infected mice conventionally maintained in a Brazilian laboratory animal house
Les chromosomes de Rodentolepis nana (Siebold, 1852) Spasskii, 1954 obtenus à partir de souris de laboratoire naturellement infectées au Brésil
1
Departamento de Primatologia, Centro de Criação de Animais de Laboratório-Fiocruz, Av. Brasil 43561, 21.045-900, Rio de Janeiro, Brasil
2
Departamento de Controle da Qualidade Animal, Centro de Criação de Animais de Laboratório-Fiocruz, Av. Brasil 43561, 21.045-900, Rio de Janeiro, Brasil
* Correspondence: Beatriz Goldschmidt. Tel.: + 55 21 2560 6364 – Fax: + 55 21 2598 4390. E-mail: bibi@fiocruz.br
Received:
18
July
2005
Accepted:
20
September
2005
The karyotype of Rodentolepis nana obtained from mice in Rio de Janeiro, Brazil, was described. The diploid chromosome number obtained by the division of embryonic cells was 2n = 12. The first and the third pairs presented subterminal centromeres and the other pairs were all acrocentric. The studied species differed in chromosome morphology when compared to previous description by Mutafova and Gergova (1994) in Bulgaria, suggesting an intraspecific variation.
Résumé
Le caryotype de Rodentolepis nana obtenu à partir de souris de laboratoires à Rio de Janeiro, Brésil, est décrit. Le numéro diploïde des chromosomes obtenus par la division de cellules embryonnaires est 2n = 12. Les première et troisième paires présentent des centromères subterminaux; toutes les autres paires sont acrocentriques. L’espèce étudiée est différente au plan de la morphologie chromosomique de la description préalable de Mutafova et Gergova (1994) en Bulgarie, suggérant une variation intraspécifique.
Key words: Rodentolepis nana / chromosome / karyotype / Cestode / laboratory mice / Brazil
Mots clés : Rodentolepis nana / chromosome / caryotype / Cestode / souris de laboratoire / Brésil
© PRINCEPS Editions, Paris, 2006, transferred to Société Française de Parasitologie
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