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Chromosoma

, Volume 31, Issue 2, pp 241–254 | Cite as

Nuclear genetic activity in B-chromosome rye, in terms of the quantitative interrelationships between nuclear protein, nuclear RNA and histone

  • David Kirk
  • R. Neil Jones
Article

Abstract

The nuclear basis of B-chromosome genetic activity in rye has been investigated using quantitative cytochemical techniques on isolated root tip nuclei. Nuclear DNA amount was found to be directly proportional to B-chromosome number. Relative amounts of total nuclear protein and nuclear RNA however, decreased with increasing numbers of B's but not in a strictly linear fashion. The values were disproportionately low for odd numbered B-classes of plants. Histone protein was found to increase as the number of B's went up, and in this case the values were disproportionately high for odd numbered B-classes. A negative correlation was found between histone and total nuclear protein and histone and nuclear RNA amounts.

Keywords

Negative Correlation Developmental Biology Nuclear Protein Linear Fashion Histone Protein 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1970

Authors and Affiliations

  • David Kirk
    • 1
    • 2
  • R. Neil Jones
    • 1
    • 2
  1. 1.Sub-Department of GeneticsQueen's UniversityBelfast
  2. 2.Department of Agricultural BotanyUniversity College of WalesAberystwythWales UK

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