| Popis: |
The biochemical-genetic analysis of 19 enzyme systems coded by 33 structural gene loci in the diploid Leuciscus cephalus have revealed the existence of two genetic loci never described in other cyprinid fishes. The electromorphs of mitochondrial aspartate aminotransferase (mAAT) and fumarate hydratase (FH) in larvae and in different adult tissues of Leuciscus cephalus suggest that these enzymes are coded by two loci each, at variance of available literature data on cyprinids, in which a single structural locus is known to code the mAAT and FH enzymes. These observations are confirmed for the adults of 8 additional Italian cyprinids. |
