Mitochondrial modification used in plant breeding
Cytoplasmatic male sterility is based on a modification of plant DNA in the mitochondria, which are located in the cytoplasm. To prevent allogamic crops such as rapeseed from producing pollen, this technique is used in hybrid breeding. CMS is a dominant trait which can be inherited.
For CMS crops to produce fruit once they are commercially cultivated, the first daughter generation is crossed with a so-called restorer line, which contains a gene that restores the plant's fertility.