Question:
Which of the following cell organelle has connection with male sterility
Which of the following cell organelle has connection with male sterility
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Because CMS is maternally inherited via mitochondrial DNA, it is widely used in commercial hybrid seed production to avoid manual emasculation of the female parent.
Updated On: Jul 13, 2026
- Mitochondria
- Chloroplast
- Peroxisome
- ER
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Male sterility in plants is a genetic condition that prevents the development of functional pollen grains, while leaving female fertility unaffected.
Step 2: Detailed Explanation:
- Cytoplasmic Male Sterility (CMS) is a maternally inherited trait.
- This condition is caused by dysfunction, mutation, or rearrangement in the mitochondrial genome (mtDNA).
- During pollen development, tapetal cells require high levels of energy.
- Abnormal mitochondrial genes disrupt respiration and ATP synthesis in these tissues, leading to tapetal degeneration and pollen abortion.
- Nuclear restorer-of-fertility (Rf) genes can suppress these mitochondrial defects to restore normal pollen development.
Step 3: Final Answer:
The cell organelle associated with cytoplasmic male sterility is the mitochondrion.
Male sterility in plants is a genetic condition that prevents the development of functional pollen grains, while leaving female fertility unaffected.
Step 2: Detailed Explanation:
- Cytoplasmic Male Sterility (CMS) is a maternally inherited trait.
- This condition is caused by dysfunction, mutation, or rearrangement in the mitochondrial genome (mtDNA).
- During pollen development, tapetal cells require high levels of energy.
- Abnormal mitochondrial genes disrupt respiration and ATP synthesis in these tissues, leading to tapetal degeneration and pollen abortion.
- Nuclear restorer-of-fertility (Rf) genes can suppress these mitochondrial defects to restore normal pollen development.
Step 3: Final Answer:
The cell organelle associated with cytoplasmic male sterility is the mitochondrion.
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