Skip to main content

Estimation of preferential pairing in tetraploid x diploid hybridizations

Theoretical and Applied Genetics volume 81, pages 504–508 (1991)Cite this article

Summary

Crosses made between tetraploid and diploid, 2n pollen-producing species directly transfer from one-half to the entire diploid genome from the diploid to the tetraploid level, depending on the mechanism of 2n pollen formation and the amount of crossing-over that occurs. Tetraploid plants that result from tetraploid x diploid hybridizations can be further utilized in a breeding program. It is postulated that preferential pairing between homologous chromosomes derived from the original tetraploid or diploid parent occurs in the tetraploid x diploid hybrid. Depending on the genetic divergence of the species involved, preferential pairing of homologous chromosomes may range from zero to one. Theoretical estimates of the amount of preferential pairing and the standard errors of these estimates are derived for cases where the diploid parent produces 2n gametes by either a first division or a second division restitution mechanism.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

43,34 €

Price includes VAT (Finland)
Tax calculation will be finalised during checkout.

References

  • Bingham ET (1979) Maximizing heterozygosity in autotetraploids. In: Lewis E (ed) Polyploidy: biological relevance. Plenum Press, New York, pp 471–489

    Google Scholar 

  • Carroll CP, Borrill M (1966) Tetraploid hybrids from crosses between diploid and tetraploid Dactylis and their significance. Genetica 36:65–82

    Google Scholar 

  • DeJong H, Tai GCC (1977) Analysis of tetraploid-diploid hybrids in cultivated potatoes. Potato Res 20:111–121

    Google Scholar 

  • DeJong H, Tai GCC, Russell WA, Johnston GR, Proudfoot KG (1981) Yield potential and genotype-environment interactions of tetraploid-diploid (4x-2x) potato hybrids. Am Potato J 58:191–199

    Google Scholar 

  • Diter A, Guyomard R, Chourrout D (1988) Gene segregation in induced tetraploid rainbow trout: genetic evidence of preferential pairing of homologous chromosomes. Genome 30:547–553

    Google Scholar 

  • Elci S, Sybenga J (1976) Incomplete preferential pairing in a tetraploid Secale hybrid carrying translocations: multivalent configuration frequencies and marker segregation. Genetica 46:177–182

    Google Scholar 

  • Herriott AB, Haynes FL, Shoemaker PB (1990) Inheritance of resistance to early blight disease in tetraploid x diploid crosses of potatoes. HortScience 25:224–226

    Google Scholar 

  • Hougas RW, Peloquin SJ (1958) The potential of potato haploids in breeding and genetic research. Am Potato J 35:701–707

    Google Scholar 

  • Mendiburu AO, Peloquin SJ (1977) The significance of 2n gametes in potato breeding. Theor Appl Genet 49:53–61

    Google Scholar 

  • Mendiburu AO, Peloquin SJ (1979) Gene-centromere mapping by 4x-2x mating in potatoes. Theor Appl Genet 54: 177–180

    Google Scholar 

  • Mendiburu AO, Peloquin SJ, Mok DWS (1974) Potato breeding with haploids and 2n gametes. In: Kasha KJ (ed) Haploids in higher plants. University of Guelph Press, Guelph, pp 249–258

    Google Scholar 

  • Mok DWS, Peloquin SJ (1975) Three mechanisms of 2n pollen formation in diploid potatoes. Can J Genet Cytol 17:217–225

    Google Scholar 

  • Okwuagwu CO, Peloquin SJ (1981) A method of transferring the intact parental genotype to the offspring via meiotic mutants. Am Potato J 58: 512–513

    Google Scholar 

  • Parrott WA, Smith RR, Smith MM (1985) Bilateral sexual polyploidization in red clover. Can J Genet Cytol 27:64–68

    Google Scholar 

  • Peloquin SJ (1981) Chromosomal and cytoplasmic manipulations. In: Frey KJ (ed) Plant breeding II. Iowa State University Press, Ames IA, pp 117–150

    Google Scholar 

  • Peloquin SJ (1982) Meiotic mutants in potato breeding. Stadler Symposium, vol 14. University of Missouri, Columbia, pp 99–109

  • Peloquin SJ, Hougas RW, Gabert AC (1966) Haploidy as a new approach to the cytogenetics and breeding of Solanum tuberosum. In: Riley R, Lewis KR (eds) Chromosome manipulations and plant genetics. Oliver and Boyd, Edinburgh, pp 21–28

    Google Scholar 

  • van Santen E, Casler MD (1990) Forage quality and yield in 4x progeny from interploidy crosses in Dactylis L. Crop Sci 30:35–39

    Google Scholar 

  • Stebbins GL Jr (1947) Types of polyploids: their classification and significance. Adv Genet 1:403–429

    Google Scholar 

  • Stephens SG (1950) The internal mechanism of speciation in Gossypìum. Bot Rev 16:115–149

    Google Scholar 

  • Sybenga J (1988) Mathematical models for estimating preferential pairing and recombination in triploid hybrids. Genome 30:745–757

    Google Scholar 

  • Tai GCC (1982) Estimation of double reduction and genetic parameters in autotetraploids. Heredity 49:63–70

    Google Scholar 

Download references

Author information

Affiliations

  1. U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Plant Sciences Institute, Vegetable Laboratory, 20705, Beltsville, MD, USA

    K. G. Haynes

  2. U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Statistical Consulting and Analysis Service, 20705, Beltsville, MD, USA

    W. E. Potts & M. J. Camp

Authors
  1. K. G. Haynes
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. W. E. Potts
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. J. Camp
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Communicated by E. J. Eisen

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Haynes, K.G., Potts, W.E. & Camp, M.J. Estimation of preferential pairing in tetraploid x diploid hybridizations. Theoret. Appl. Genetics 81, 504–508 (1991). https://doi.org/10.1007/BF00219440

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00219440

Key words

  • 4x
  • 2x hybridization
  • 2n gametes
  • Preferential pairing