Enzymatic variation in African clariid catfishes |
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| Authors: | G G Teugels R Guyomard † M Legendre ‡§ |
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| Institution: | Laboratoire d'Ichtyologie, Musée Royal de l'Afrique Centrale, B-3080 Tervuren, Belgium;Laboratoire de Genetique des Poissons, Institut National de Recherches Agronomiques, F-78350 Jouy-en-Josas, France;Centre de Recherches Océanographiques, BP V18, Abidjan, Ivory Coast |
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| Abstract: | Enzymatic polymorphism was examined at 13 protein loci in four African clariid catfish species: Clarias anguillaris (Linnaeus, 1758), C. ebriensis Pellegrin, 1920, C. gariepinus (Burchell, 1822) and Heterobranchus longifilis Valenciennes, 1840. The latter appears to be closer to C. anguillaris and C. gariepinus than C. ebriensis . These results correspond with recently published karyological and morphometrical data.
Reproductive compatibility, under laboratory conditions at least, is demonstrated between C. gariepinus and H. longifilis . The hybrids were shown to be completely intermediate between the parental strains. |
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| Keywords: | Clarias Heterobranchus hybrids enzymatic variation |
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