A specific rearrangement of mitochondrial DNA induced by tissue culture
β Scribed by T. Brears; G. J. Curtis; D. M. Lonsdale
- Book ID
- 104688960
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 597 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0040-5752
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β¦ Synopsis
The induction, growth and regeneration of sugar beet callus to whole plants were all found to be highly genotype-specific. Regenerants of one line (of sterile cytoplasm) were obtained and a study of the chloroplast and mitochondrial DNA in these somaclones was undertaken by gel electrophoresis and cosmid hybridization. In one somaclone a rearrangement in the mitochondrial genome was observed; the novel arrangement of this part of the genome was identical to the corresponding area of the genome of the normal cytoplasm though it was otherwise of sterile type. This suggests that mitochondrial DNA may have a propensity to undergo certain types of rearrangement.
π SIMILAR VOLUMES
Structural alterations in mitochondrial DNAs (mtDNAs) from a plant of a sterile sugar beet line, callus derived from it, suspension-cultured cells and plants regenerated from the callus were studied. BamHI restriction analysis revealed that structural alterations between the mtDNAs of the callus and
## Abstract Highly diverse results have been reported for mitochondrial DNA (mtDNA) heteroβplasmy in nuclearβtransferred farm animals. In this study, we cloned genetically defined mice and investigated donor mtDNA inheritance following somatic cell cloning. Polymerase chain reaction (PCR) analysis