Notizie preliminari sulla costituzione cariologica dell'ibrido intergenerico Salmo gairdneri X Salvelinus fontinalis (Pisces,Salmoniformes)
The chromosome complement of an experimental hybrid Salmo gairdneri X Salvelinus fontinalis has been investigated in 21 specimens. The chromosomes number has been demonstrated to vary both intrerindividually as well as within the different tissues of the same subject. The chromosome number ranges from 92 to 106 and the Fundamental numbers vary from 133 to 159. The morphological analysis of the hybrid karyotypes evidences that each complement is made up by one haploid set of Salvelinus fontinalis...