Abstract

Tomato plastid DNA has been isolated from leaf chloroplasts andPst1 fragments cloned in the plasmid vector pUC8. Recombinant plasmids containing all but the largestPst1 fragment were identified by colony hybridisation. A restriction map of the plastid DNA for four restriction endonucleases was generated by digestion of the clonedPst1 fragments and by hybridisation to Southern blots. The plastid DNA is a circular molecule of 156.6–159.4 kbp with a large inverted repeat, and shows high conservation of restriction sites with plastid DNA from tobacco andPetunia.

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