ISSN:
1432-2242
Keywords:
Nicotiana
;
Mitochondrial DNA-cybrids
;
Somatic hybrids
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Mitochondrial DNA (mtDNA) restriction patterns were studied in mutant, cybrid and somatic hybrid plants regenerated from Nicotiana protoplasts. It has been shown that neither components of the culture media used for protoplast culture and plant regeneration, nor the antibiotics streptomycin and lincomycin used for the mutant selection induced alterations in the mtDNA. No rearrangements were detected in the mtDNA of plants derived from homoplasmic fusions where the mtDNA of the parents was identical as judged by mtDNA restriction patterns. There were rearrangements, however, in the mtDNA of each of the cybrid plants derived from heteroplasmic fusions. Restriction patterns generated by BamHI and SalI restriction endonucleases were different from those of both parents, and were composed of parental and non-parental fragments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00251143
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