Article

Genetica

, Volume 45, Issue 4, pp 531-536

First online:

C-banding patterns inSalmo trutta, a species of tetraploid origin

  • M. T. ZenzesAffiliated withInstitut für Humangenetik und Anthropologie der Universität
  • , I. VoiculescuAffiliated withInstitut für Humangenetik und Anthropologie der Universität

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Abstract

Salmo trutta is a species of tetraploid origin in the process towards diploidization. By their C-banding pattern, some chromosomes demonstrated homology in the disomic stage, whereas others are tetrasomic. An attempt is made to arrange a karyotype according to this presumptive homology. AsS. irideus (Ohno et al., 1965), andS. salar (Roberts, 1968),S. trutta showed inter- and intra-individual Robertsonian variation. 53 analysed metaphases showed chromosome counts ranging from 77 to 82. The chromosome arm count (FN) was found to be consistently 102.