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Organization and bidirectional transcription of H2A, H2B and H4 histone genes in rice embryos

Thomas, G and Padayatty, JD (1983) Organization and bidirectional transcription of H2A, H2B and H4 histone genes in rice embryos. In: Nature, 306 . pp. 82-84.

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Official URL: http://www.nature.com/nature/journal/v306/n5938/ab...


Our current understanding of the evolution of the histone gene family suffers from a lack of information on plant histone genes1. With a view to gathering some much needed information on these genes, we studied a rice genomic clone in pBR322 carrying H2A, H2B and H4 histone genes on a DNA fragment2 of 6.64 kilobases (kb). A restriction map of the insert was constructed and the organization of the three genes on this insert was determined. H2A and H2B histone genes were located at one end of the insert and H4 gene at the other with a 3.1 kb spacer in between. This cluster of three histone genes was found to be transcribed in a bidirectional fashion with H2A and H2B genes being encoded by one strand and the H4 gene by the other. These results indicate that plant histone gene organization differs from that of the sea urchin, but shows many similarities to the systems in other animals.

Item Type: Journal Article
Publication: Nature
Publisher: Nature Publishing Group
Additional Information: Copyright of this article belongs to Nature Publishing Group.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 21 Nov 2009 12:45
Last Modified: 21 Nov 2009 12:45
URI: http://eprints.iisc.ac.in/id/eprint/20305

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