Summary
The analysis of restriction patterns of chloroplast DNA (ct-DNA) generated by several enzymes reveals that there is a high frequency of ct-DNA alteration in the male sterile but not in the fertile cytoplasma of N. tabacum. The altered restriction patterns and maps suggest that recombination of ct-DNA may have occurred. However, other alternatives such as deletions, insertions, and/or point mutations cannot be ruled out.
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Communicated by G. Melchers
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Kung, S.D., Zhu, Y.S., Chen, K. et al. Nicotiana chloroplast genome. Molec. Gen. Genet. 183, 20–24 (1981). https://doi.org/10.1007/BF00270132
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DOI: https://doi.org/10.1007/BF00270132