Genes for cytoplasmic male sterility in plants are generally located in

• mitochondrial genome

• cytosol

• chloroplast genome

• nuclear genome

A.

mitochondrial genome

Mitochondria are the eukaryotic cell organelles. These originate from pre-existing mitochondria only. Also known as semi autonomous organelles because they consists of  a circular, double stranded DNA molecule, RNA and 70 S type of ribosome. The genes, located outside of nucleus (i.e., within the cytoplasm) also governes some traits and are referred as plasmogenes or cytoplasmic genes. Cytoplasmic male sterility (i.e., dominance of female cytoplasmic genes over male) is due to plasmogenes located in mitochondrial DNA (mtDNA).