Abstract
ALTHOUGH plants and animals diverged from each other nearly 109 yr ago, the histone composition of their chromosomes is remarkably similar1; in particular, the arginine-rich histones III and IV of peas and cows differ by only four and two amino acids, respectively2,3. Such extreme evolutionary conservation of a protein sequence argues that histones are crucial to chromosome structure and/or function, and further suggests considerable similarity, at the molecular level, between the chromosomes of plants and animals. We present evidence here for such a similarity.
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McGHEE, J., ENGEL, J. Subunit structure of chromatin is the same in plants and animals. Nature 254, 449–450 (1975). https://doi.org/10.1038/254449a0
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DOI: https://doi.org/10.1038/254449a0
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