Genetica

, Volume 45, Issue 4, pp 531–536

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

  • M. T. Zenzes
  • I. Voiculescu
Article

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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Arrighi, F. E. &T. C. Hsu (1971). Localization of heterochromatin in human chromosomes.Cytogenetics 10: 81–86.PubMedGoogle Scholar
  2. Craig-Holmes, A. P., F. B. Moore &M. W. Shaw (1973). Polymorphism of human C-band heterochromatin I. Frequency of variants.Am. J. hum. Genet. 25: 181–192.PubMedGoogle Scholar
  3. Klose, J., U. Wolf, H. Hitzeroth, H. Ritter, N. B. Atkin &S. Ohno (1968). Duplication of LDH gene loci by polyploidization in the fish order Clupeiformes.Humangenetik 5: 190–196.PubMedGoogle Scholar
  4. Nygren, A., B. Nilsson &M. Jahnke (1971). Cytological studies in Salmo trutta and Salmo alpinus.Hereditas 67: 259–268.PubMedGoogle Scholar
  5. Ohno, S. (1970). Evolution by Gene Duplication (Springer, Berlin, Heidelberg, New York 1970).Google Scholar
  6. Ohno, S. (1970). The enormous diversity in genome sizes of fish as a reflection of nature's extensive experiments with gene duplication.Trans. Am. Fish Soc. 99: 120–130.Google Scholar
  7. Ohno, S., C. Stenius, E. Faisst &M. T. Zenzes (1965). Post-zygotic chromosomal rearrangements in rainbow trout (Salmo irideus Gibbons).Cytogenetics 4: 117–129.Google Scholar
  8. Ohno, S., U. Wolf &N. B. Atkin (1968). Evolution from fish to mammals by gene duplication.Hereditas 59: 169–187.PubMedGoogle Scholar
  9. Ohno, S., J. Muramoto, J. Klein &N. B. Atkin (1969). Diploid-tetraploid relationship in Clupeoid and Salmonoid fish. In: Chromosomes Today (C. D. Darlington and K. R. Lewis, eds.), Vol. II, 139–147. (Oliver and Boyd, Edinburgh).Google Scholar
  10. Roberts, F. L. (1968). Chromosomal polymorphism in North American landlocked Salmo salar.Can. J. Genet. Cytol. 10: 865–875.Google Scholar
  11. Roberts, F. L. (1970). Atlantic salmon (Salmo salar) chromosomes and speciation.Trans. Am. Fish. Soc. 99: 105–111.Google Scholar
  12. Soudek, D., R. Laxova &R. Adamek (1968). Pericentric inversion in a family with a 21/22 translocation.Cytogenetics 7: 108–117.PubMedGoogle Scholar
  13. Svärdson, G. (1945). Chromosome studies on Salmonidae.Rep. Swed. State Inst. Freshwater Fish. Res. 23: 1–151.Google Scholar
  14. Wolf, U., W. Engel &J. Faust (1970). Zum Mechanismus der Diploidisierung in der Wirbeltierevolution: Koexistenz von tetrasomen und disomen Genloci der Isocitrat-Dehydrogenasen bei der Regenbogenforelle (Salmo irideus).Humangenetik 9: 150–156.PubMedGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1975

Authors and Affiliations

  • M. T. Zenzes
    • 1
  • I. Voiculescu
    • 1
  1. 1.Institut für Humangenetik und Anthropologie der UniversitätFreiburg i. Br.B.R.D.

Personalised recommendations