Skip to main content
SpringerLink
Log in

Cytogenetic studies of apomixis inPennisetum

Pennisetum clandestinum Hochst

  • Published:
Proceedings / Indian Academy of Sciences

Summary

P. clandestinum consists of two varieties,viz., Kabete andRongai. TheRongai variety showed abnormalities of micro-sporogenesis resulting in poor pollen and non-exserted stamens and did not form seed when isolated although it showed fertility on the female side by forming seed when it had access to pollen. TheKabete variety had normal pollen and exserted anthers and formed good seed. Seeds obtained by hybridising the two varieties using theRongai as the female parent, gave rise to maternal plants and hybrids with viable pollen and exserted anthers, showing not only the recessiveness of the male sterility inRongai, but also indicating facultative apomixis. This indication was confirmed by cytological evidence based on a chromosomal count showing the formation of haploid and aposporic embryo sacs. Embryo formation is normal inKabete and is preceded by endosperm formation. Polyembryony occurs.

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

  • Akerberg, E...Hereditas, 1943,29, 199–201.

    Google Scholar 

  • Beadle, G. W...Science, 1928,68, 433.

    Article  PubMed  Google Scholar 

  • —————..Jour. Gen., 1932,17, 413–41.

    CAS  Google Scholar 

  • Blakeslee, A. G., Averyet al. ..Carnegie Inst. Washington Year Book, 1935, No. 34.

  • Boos, G. ..Bot. Notiser, 1924, 209–50.

  • Brink, R. A. and Cooper, D. C...Bot. Rev., 1947,13, 423–541.

    Article  Google Scholar 

  • Edwards, D. C...Emp. Jour. Expt. Agri., 1937,5, 371–76.

    Google Scholar 

  • Englebert, V...Canad. Jour. Res., Ser. C., 1940,18, 518–21.

    Google Scholar 

  • —————.. Ibid., 1941,19, 135–44.

    Google Scholar 

  • Emerson, R. A., Beadle, G. W. and Fraser, A. C.Cornell Agric. Expt. Station Mem., 1935,180, 83.

    Google Scholar 

  • Eyster, L. A...Jour. Heredity, 1921,12, 138–41.

    Google Scholar 

  • Gentscehff, G. and Gustafsson, A.Bot. Notiser, 1940, 109–31.

  • Gustafsson, A...Lunds. Univ. Arsskr. N.F., 1947,43, 71–178.

    Google Scholar 

  • Haflinger, E...Ber. schweiz. bot. Ges., 1943,53, 317–82.

    Google Scholar 

  • Lesley, J. W. and Margaret, M. LesleyAmer. Nat., 1939,59, 570–74.

    Article  Google Scholar 

  • McClintock, B. ..Stain. Tech., 1929,6 (2).

  • Nielson, E. L. ..Bot. Gaz. 1946a, 26–40.

  • ----- ..Ibid., 1946b, 41–50.

  • Narayan, K. N. ..Ph. D. Thesis, Univ. Calif., 1951.

  • Noack, K...Zschr. ind. Abst. U. Vererb., 1939,76, 569–601.

    Article  Google Scholar 

  • Rick, C. M...Science, 1944,99, 543.

    Article  PubMed  Google Scholar 

  • —————..Genetics, 1945,30, 347–62.

    PubMed  CAS  Google Scholar 

  • Rosenberg, O...Svensk. Bot. Tidskr., 1907,28, 143–70.

    Google Scholar 

  • Stebbins, G. L. Jr. and Jenkins, J. A.Genetica, 1939,21, 191–224.

    Article  Google Scholar 

  • Stockwell, P...Science, 1934,80, 121–22.

    Article  PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Botany, Central College, Bangalore

    K. N. Narayan

Authors
  1. K. N. Narayan
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Part of the thesis submitted in partial fulfilment for the Degree of Doctor of Philosophy in the University of California, California.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Narayan, K.N. Cytogenetic studies of apomixis inPennisetum . Proc. Indian Acad. Sci. 41, 196–208 (1955). https://doi.org/10.1007/BF03050303

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03050303

Keywords

Search

Navigation