Indian Society of Genetics & Plant Breeding

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QUANTITATIVE ANALYSIS OF DNA AND HISTONES OF NUCLEI IN FERTILE AND STERILE ANTHERS OF BETA VULGARIS L.

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Quantitative analysis of DNA and histones of nuclei in the anthers of male fertile
(MF), cytoplasmic, genic and gamma-ray induced cytoplasmic male sterile (MS) lines
of Ijeta vulgaris indicated that in MS anthers, the quantity of DNA and histones
corresponded to the MF lines upto microspore tetrad stage. but in subsequent stages
there was a progressive retrogression and the nuclei of vacuolate pollen grains and
tapetal cells completely lost their stainability. It is concluded that this is due to an
impaired synthesis of nuclear DNA and histones associated with their progressive
degradation.
 

Keywords: DNA, histones, male sterility, sugarbeet

Info

Year: 1999
Volume: 59
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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