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Analysis of nucleosomal deoxyribonucleic acid in a higher plant.


ABSTRACT: Comparisons of nuclease digestions of chromatin in nuclei from rye embryos and rat liver show that their nucleosomal DNA is similar, i.e. DNA subunits consist of 200 base-pair repeats with 140 base-pair cores of identical substructure. The identical nucleosome structure is present in nuclei from cells of rye embryos that have been non-viable (i.e. dead) for more than 7 years. These findings indicate a high degree of stability of the DNA-histone complex and are consistent with conservation of the nucleosomal structure of chromatin during evolution.

SUBMITTER: Cheah KS 

PROVIDER: S-EPMC1164669 | biostudies-other | 1977 Apr

REPOSITORIES: biostudies-other

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