Mapping of transfer RNA genes on tobacco chloroplast DNA

1 January 1984

journal article
research article
Published by Springer Nature in Plant Molecular Biology

Vol. 3 (1) , 29-36
https://doi.org/10.1007/bf00023413

Abstract

Tobacco chloroplast tRNAs have been purified by two-dimensional polyacrylamide gel electrophoresis, identified by aminoacylation, labelled at their 3′-end and hybridized to tobacco chloroplast DNA restriction fragments, in order to establish a tRNA gene map. These hybridization studies have revealed the localization of at least seven genes in each inverted repeat region, a minimum of 22 tRNA genes in the large single copy region and one tRNA gene in the small single copy region. Comparison of the tobacco chloroplast tRNA gene map to that of maize shows many similarities, but also some differences suggesting that DNA sequence rearrangements have occurred in the chloroplast genome during evolution.

Keywords

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