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Evidence for genetic isolation among four morphological species of Leporinus (Anostomidae, Pisces) in French Guiana

Published online by Cambridge University Press:  15 July 1989

Jean-François Renno ,
René Guyomard ,
Thierry Boujard  and
Christine Bastide
Jean-François Renno
Affiliation:
USTL/INRA Laboratoire d'Hydrobiologie, BP 709, 97387 Kourou, Guyane Française
René Guyomard
Affiliation:
INRA/CRJJ Laboratoire de Génétique des poissons, 78350 Jouy-en-Josas, France
Thierry Boujard
Affiliation:
USTL/INRA Laboratoire d'Hydrobiologie, BP 709, 97387 Kourou, Guyane Française
Christine Bastide
Affiliation:
USTL/INRA Laboratoire d'Hydrobiologie, BP 709, 97387 Kourou, Guyane Française
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Abstract

Genetic differentiation was studied among Leporinus friderici, L. granti, L. lebaili and L. affinis steyermarki, neotropical fish of the anostomid family found in French Guiana, using starch-gel protein electrophoresis. Fifteen enzymatic proteins representing twenty loci have been screened. This revealed marked genetic differences between these species, which are hardly morphologically discernable and indicates they are reproductively isolated. Diagnostic loci for unequivocal species identification have been found and will allow establishment of pure breeding stocks for planned aquaculture of Leporinus species.

Keywords

South AmericaFrench Guianaanostomid fishbiochemical geneticsAmérique du SudGuyanepoissons Anostomidésgénétique biochimique
Type
Research Article
Information
Aquatic Living Resources , Volume 2 , Issue 3 , July 1989 , pp. 127 - 134
Copyright
© IFREMER-Gauthier-Villars, 1989

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