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Apospory in Sorghum bicolor (L.) Moench
Science (New York, N.Y.)
|October 16, 1970
Summary
Sorghum bicolor (L.) Moench was found to reproduce asexually through apospory, a form of apomixis. This was confirmed by observing embryo formation from nucellar cells without fertilization and through progeny tests.
Area of Science:
- Plant reproductive biology
- Genetics and genomics
- Agricultural science
Background:
- Apomixis, asexual reproduction in plants, is a significant trait for crop improvement.
- Sorghum bicolor (L.) Moench is a vital cereal crop globally.
- Understanding the mechanisms of apomixis in Sorghum is crucial for its agricultural applications.
Purpose of the Study:
- To investigate and confirm the occurrence of apospory in a specific line of Sorghum bicolor (L.) Moench.
- To elucidate the cellular origins of embryo formation in this apomictic Sorghum line.
Main Methods:
- Cytological observation of Sorghum bicolor (L.) Moench ovaries.
- Progeny testing of the identified Sorghum line.
Main Results:
- A line of Sorghum bicolor (L.) Moench was confirmed to reproduce via apospory.
- Embryo formation was observed to originate from nucellar cells, independent of fertilization.
- Progeny tests corroborated the apomictic mode of reproduction.
Conclusions:
- Apospory, a mode of apomixis, has been identified in Sorghum bicolor (L.) Moench.
- This discovery holds potential for developing apomictic Sorghum varieties, offering advantages in crop propagation and uniformity.
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