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Partitioning Apomixis Components to Understand and Utilize Gametophytic Apomixis
Pankaj Kaushal1, Krishna K Dwivedi2, Auji Radhakrishna2
1ICAR-National Institute of Biotic Stress Management, Raipur, India.
Frontiers in Plant Science
|March 26, 2019
Summary
Apomixis, a clonal seed reproduction method, involves uncoupled components: apomeiosis, parthenogenesis, and endosperm development. Understanding this partitioning in plants like Panicum maximum offers new avenues for crop improvement.
Area of Science:
- Plant reproductive biology
- Genetics and genomics
- Crop science
Background:
- Apomixis generates clonal seeds, fixing heterozygosity and hybrid vigor.
- Apomictic seed development involves apomeiosis, parthenogenesis, and endosperm development.
- These components can be uncoupled, leading to partitioning in gametophytic apomictic plants.
Purpose of the Study:
- To review the current understanding of partitioning apomixis components in plants.
- To explore research avenues for understanding apomixis biology through partitioning.
- To discuss the potential of Panicum maximum as a model for studying partitioning apomixis.
Main Methods:
- Literature review of recent research on apomixis partitioning.
- Analysis of consequences of component partitioning on seed development and variability.
- Discussion of genetic and cytogenetic implications of partitioned apomixis.
Main Results:
- Partitioning of apomixis components leads to diversity in seed developmental pathways.
- Identification of candidate genes for partitioned apomixis components is a key research area.
- Panicum maximum serves as a valuable model for studying partitioning effects.
Conclusions:
- Understanding partitioned apomixis opens opportunities for synthesizing apomixis in crops.
- Modifications in cytogenetic status and endosperm imprinting are significant outcomes of partitioning.
- Research on partitioning apomixis can enhance crop breeding strategies and variability creation.
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