Article
Amplification of Nicotiana sylvestris mitochondrial subgenomes is under nuclear control and is associated with phenotypic changes.
Genetica - 1 Jan 2003
Albert Béatrice, Lelandais Christine, Pla Magali, Leuret Corine, Vitart Véronique, Mathieu Chantal, Sihachakr Darasinh, Godelle Bernard, De Paepe Rosine
Abstract excerpt
We have previously shown the presence in a Nicotiana sylvestris protoplast-derived plant of both a nuclear mutation conferring male sterility (ms4) and a mtDNA reorganisation, named U, characterised by the amplification of substoichiometric mtDNA fragments generated by recombination in the parent T mtDNA. Here we show by physical mapping that the recombining repeats are in direct orientation, thus generating two...
Topics
- Cell Nucleus
- DNA, Mitochondrial
- DNA, Plant
- Evolution, Molecular
- Gene Amplification
- Phenotype
- Recombination, Genetic
- Restriction Mapping
- Nicotiana