Skip to main content
SpringerLink
Log in

Suppression of multivalent formation by B chromosomes in natural and artificial autopolyploids of scurvy-grass (Cochlearia L.)

  • Published:
Theoretical and Applied Genetics Aims and scope Submit manuscript

Summary

In diploid Cochlearia pyrenaica, its established natural autotetraploid C. officinalis, and their newly induced autotetraploid and auto-octoploid derivatives, B chromosomes change the normal pattern of chromosome association by suppressing homologous pairing. Frequency of bivalents increases at the expense of multivalents from lower to higher numbers of B chromosomes. The reduction of multivalents due to the direct influence of the B chromosomes, independent of pollen mother cell chiasma frequency, is suggested as being related to the mechanism that prevents A/B chromosome pairing.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature

  • Bowman, J.G.; Thomas, H. (1973): B chromosomes and chromosome pairing in Lolium perenne x Festuca arundinacea hybrid. Nature New Biol. 245, 80–81

    Google Scholar 

  • Evans, G.M.; Macefield, A.J. (1972): The suppression of homeologous pairing by B chromosomes in a Lolium species hybrid. Nature New Biol. 236, 110–111

    Google Scholar 

  • Evans, G.M.; Macefield, A.J. (1974): The effect of B chromosomes on homologues pairing in species hybrids. II. Lolium multiflorum x Lolium perenne. Chromosoma 45, 369–378

    Google Scholar 

  • Gupta, P.P. (1980): Consequences of artificial and natural chromosome doubling on macromolecular composition of scurvy-grass (Cochlearia L.). Plant Syst. Evol. (in press)

  • Macefield, A.J.; Evans, G.M. (1976): The effect of B chromosomes on meiosis in autotetraploid Lolium perenne. Heredity 36, 393–397

    Google Scholar 

  • Murray, B.G. (1978): B chromosomes and multivalent formation in tetraploid hybrids between Briza media and Briza elatior. Heredity 41, 227–231

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Genetics, University of Liverpool, Liverpool, England

    P. P. Gupta

  2. Max-Planck-Institut für Züchtungsforschung, D-5000, Köln 30, Federal Republic of Germany

    P. P. Gupta

Authors
  1. P. P. Gupta
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Communicated by F. Mechelke

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gupta, P.P. Suppression of multivalent formation by B chromosomes in natural and artificial autopolyploids of scurvy-grass (Cochlearia L.). Theoret. Appl. Genetics 59, 221–223 (1981). https://doi.org/10.1007/BF00265496

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00265496

Key words

Search

Navigation