GENETICAL STUDIES ON THE FRESH WATER FISH SYNODONTIS SCHALL

GENETICAL STUDIES ON THE FRESH WATER FISH

SYNODONTIS SCHALL

By
EZZAT, A. BADAWY*
*National Institute of Oceanography and Fisheries, Genetic Lab; Barrage Research
station; Ka~pobia Govemarate, Egypt.
Key words: Synodolltis schall chromosome-serum and muscl electoresis.
ABSTRACT
The kalyological analysis of the fish Synodolltis schall illustraTed
that they hal’e diploid number of chromosomes (2n= 56) and FN=
JJ2. The chromosome complement consists o.ffour median centric (m)
and 2-1 submedian centric chromosomes (sm). The electrophoretis
analysis for Synodontis schall illustrated the presence of J6 fractions
in their semm proteinograms and only 14 fractions in their muscle
proteinograms.