The Mitochondria Genomic Mutation and Function in the Cytoplasmic Male Sterile Line of Maxie Rice

Maxie is a newly inbreeded cytoplasmic male sterile(CMS) systems in rice(Oryza sativa L.).Our experiments showed that there existed an extra copy of cox2 gene in the CMS line except for the normal one.The two copies transcribed into different transcripts.In-gel activity assay showed that the mitochondria complex IV presented significant reduction in activity compared with the fertile line.