Skip to main content
SpringerLink
Log in

Cytogenetics of synthetic allotetraploids inArachis

  • Published:
Proceedings / Indian Academy of Sciences

Summary

The morphology and ctyology of synthetic tetraploids resulting from the cross,A. hypogaea × (A. hypogaea × A. sp. A. 329) is described. These are genetically variable and revealed a low degree of meiotic lability. The probable origin of the tetraploids as well as the basis for the variability has been discussed. The role of allotriploids as an intermediate stage in the experimental gene transference from related diploid species to the tetraploids and in facilitating gene introgression in nature has been indicated. Xenia is suggested as a possible explanation for the variation in the pod characters of crossed plants and hybrids.

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

References

  • Gerstel, D. U... “Inheritance inNicotiana tabacum, XIX. Identification of thetabacum chromosome replaced by one fromN. glutinosa in Mosaic Resistant Holmes Samsoum Tobacco,”Genetics, 1945,30, 448–54.

    PubMed  CAS  Google Scholar 

  • Greenleaf, W. H... “Genetic sterility intabacum-like amphidiploids ofNicotiana,”J. Genet., 1942,43, 69–96.

    Article  Google Scholar 

  • Krishnaswamy, N... “Tetraploid grain Sorghum,”Madras agric. J., 1957,44, 89–92.

    Google Scholar 

  • ————— and Raman, V. S... “Studies on the interspecific hybrid ofPennisetum typhoides × P. purpureum, IV. The cytogenetics of the allotetraploid”Genetica, 1956,28, 345–60.

    Article  Google Scholar 

  • Kumar, L. S. S. and D’Cruz, R. “Aneuploidy in species ofArachis,”J. Indian bot. Soc., 1958,36, 545–47.

    Google Scholar 

  • Meyer, J. R... “Genes from cotton species—Gossypium hirsutum,”Genetics 1954,39, 982.

    Google Scholar 

  • Raman, V. S... “Studies in the genusArachis, VI. Investigations on 30-chromosomed interspecific hybrids,”Indian Oilseeds J., 1959,3, 157–61.

    Google Scholar 

  • —————.. “Studies in the genusArachis, VII. A natural interspecific hybrid,” Ibid., 1959,3, 226–28.

    Google Scholar 

  • —————.. “Studies in the genusArachis, IX. A fertile synthetic tetraploid groundnut from the interspecific back cross,A. hypogaea × (A. hypogaea × A. villosa),” Ibid., 1960,4, 90–92.

    Google Scholar 

  • Stebbins, G. L. (Jr.) .. “Artificial polyploidy as a tool in plant breeding,”Brookhaven symposia in Biology, No. 9, Genetics in Plant Breeding, 1956, 37–52.

  • Stephens, S. G... “Species differentiation in relation to crop improvement,”Crop Science, 1961,1, 1–5.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Agricultural College and Research Institute, Coimbatore-3

    V. S. Raman & P. C. Kesavan

Authors
  1. V. S. Raman
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. C. Kesavan
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Communicated by Dr. T. V. Desikachary,f.a.sc.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Raman, V.S., Kesavan, P.C. Cytogenetics of synthetic allotetraploids inArachis . Proc. Indian Acad. Sci. 58, 57–63 (1963). https://doi.org/10.1007/BF03052073

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03052073

Keywords

Search

Navigation