Experientia

, Volume 39, Issue 9, pp 1040–1041 | Cite as

B chromosomes in tetraploid pearl millet

  • J. V. Pantulu
  • P. S. R. L. Narasinga Rao
  • K. Jayalakshmi
  • G. J. N. Rao
Short Communications Genetics, Developmental Biology, Aging

Summary

B chromosomes were found in a triploid which had no seedset in selfing, or in a cross with a highly fertile tetraploid (3nB×4n). From the reciprocal cross (4n×3nB) 8 progeny plants were obtained which contained B chromosomes. These plants had very low seedset and yielded only 24 eutetraploids (4n=28) in the next generation. All except one of these plants had B chromosomes. The 4nB plants showed high frequencies of A chromosome chiasmata and multivalents, including complex configurations.

Keywords

Pearl Millet Reciprocal Cross Complex Configuration Progeny Plant Fertile Tetraploid 

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Copyright information

© Birkhäuser Verlag 1983

Authors and Affiliations

  • J. V. Pantulu
    • 1
  • P. S. R. L. Narasinga Rao
    • 1
  • K. Jayalakshmi
    • 1
  • G. J. N. Rao
    • 1
  1. 1.Department of BotanyAndhra UniversityWaltair(India)

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