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Protostrongylus rufescens: a cytogenetic study

Published online by Cambridge University Press:  05 June 2009

C. Cutillas
Affiliation:
Department of Parasitology, Faculty of Pharmacy, Sevilla University, Spain
D. C. Guevara
Affiliation:
Department of Parasitology, Faculty of Pharmacy, Sevilla University, Spain
A. Valero
Affiliation:
Department of Parasitology, Faculty of Pharmacy, Granada University, Spain
C. Ariza
Affiliation:
Department of Parasitology, Faculty of Pharmacy, Sevilla University, Spain

Abstract

The diploid chromosome number of Protostrongylus rufescens is 2n=11 for males and 2n=12 for females. So, the sex determinism mechanism is XO/XX. The study of the genetic behaviour of this species has been made. In diakinesis stage the bivalents show typical tetrads with cross, Ø, and lineal configurations. The division of the sexual chromosome is prereductional for the first meiotic division.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1987

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References

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