HomeInternational Rice Research Notesvol. 23 no. 1 (1998)

Mitochondrial gene expression in cytoplasmic male sterile and fertile lines of rice

S. Venmadhi | K. K. Narayanan

Discipline: Agriculture, Genetics



In various plant species, rearrangements in the mitochondrial genome have been associated with cytoplasmic male sterility (CMS). These rearrangements could modify genome expression and thereby play a role in pollen abortion. In rice, investigations carried out in our laboratory have established some rearrangements in the genetic organization of mitochondrial DNA between male sterile and fertile lines. For example, the cox1 locus was found rearranged in the CMS line compared with the fertile lines.