Portal de Periódicos da CAPES

On the Chromosome Morphology of Certain Pisces

1934; International Society of Cytology; Volume: 5; Issue: 4 Linguagem: Inglês

10.1508/cytologia.5.498

1348-7019

Alexandra Prokofieva,

Animal Nutrition and Health

1. The study of chromosome plates of 6-8 day embryos has given chromosome numbers: for Salmo salar=60, Coregonus lavaretus baeri=80, Salmo fario=84, for Coregonus baeri×Salvelinus fontinalis hybrids=80, and Salmo salar×Salvelinus fontinalis hybrids=70.2. The chromosomes of all the fishes investigated have clearly displyed a bilateral structure. After the Position of the constrietion and the length of chromosome arms, these chromosomes may be divided into 4 types: long, equilateral ones; Jong, inequilateral ones; long, headed ones; and Small headed ones.3. In the chromosome plates of Salmo salar and Salmo salar×Salvelinus fontinalis and Coregonus baeri×Salvelinus fontinalis hybrids there have been discovered chromosomes with satellites.4. The chromosome structure of the studied fish species corresponds to the maxims of structure of chromosomes revealed in plants and gives grounds for supposing a course of karyological evolution common to both the animal and vegetable kingdom.