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Diploid and tetraploid African Barbus (Osteichthyes, Cyprinidae): on the coding of differential gene expression

Published online by Cambridge University Press:  15 October 1990

Patrick Berrebi
Affiliation:
Institut des Sciences de l'Évolution (URA 327, CNRS) , case 064, Université Montpellier II, Place E. Bataillon, 34095, Montpellier Cedex 05, France
Christian Lévêque
Affiliation:
Antenne ORSTOM, Laboratoire d'Ichtyologie Générale et Appliquée, Muséum National d'Histoire Naturelle, 43 rue Cuvier, 75231 Paris Cedex 05, France
Ghislaine Cattaneo-Berrebi
Affiliation:
Institut des Sciences de l'Évolution (URA 327, CNRS) , case 064, Université Montpellier II, Place E. Bataillon, 34095, Montpellier Cedex 05, France
Jean-François Agnèse
Affiliation:
Institut des Sciences de l'Évolution (URA 327, CNRS) , case 064, Université Montpellier II, Place E. Bataillon, 34095, Montpellier Cedex 05, France
Jean-François Guégan
Affiliation:
Laboratoire de Parasitologie Comparée (URA 698, CNRS), Université Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 05, France
Annie Machordom
Affiliation:
Museo Nacional de Ciencias Naturales, J. Gulierrez Abascal, 2, 28006 Madrid, Spain
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Abstract

Three species in the group of "small" Barbus from West Africa were analyzed by enzyme electrophoresis to assess their genetic differentiation. Comparison with a species of "large" Barbus from the same region showed that the "small" Barbus are certainly diploid and the "large" tetraploid. They clearly form two distinct lineages. Phenetic dendrograms (Nei distances) and cladograms (compatibility networks) of the genus Barbus are proposed, based on three African diploid species, two diploid species from Saudi Arabia and Southeast Asia, one African tetraploid species, and two French tetraploid species. These trees reveal two sets of species, i.e. diploid and tetraploid. Several methods of data processing are suggested for overcoming the difficulties involved in simultaneously analyzing species with different ploidy levels.

Type
Research Article
Copyright
© IFREMER-Gauthier-Villars, 1990

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Diploid and tetraploid African Barbus (Osteichthyes, Cyprinidae): on the coding of differential gene expression
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Diploid and tetraploid African Barbus (Osteichthyes, Cyprinidae): on the coding of differential gene expression
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