FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term meiotic actomyosin contractile ring ID (Ontology) GO:0110086 (Gene Ontology)
Definition A cytoskeletal structure composed of actin filaments, myosin, and myosin-associated proteins that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the meiotic spindle, i.e. the cell division plane. Ring contraction is associated with centripetal growth of the membrane that divides the cytoplasm of the two future daughter cells. In animal cells, the meiotic contractile ring is located inside the plasma membrane at the location of the cleavage furrow. In fungal cells, the meiotic contractile ring forms beneath the plasma membrane of the prospore envelope in preparation for completing cytokinesis.[ PubMed:22526418 ]
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cortical actin cytoskeleton__
cell division site___________|
contractile ring_____________|
                             actomyosin contractile ring
                              |__meiotic actomyosin contractile ring
                                  |__prospore contractile ring
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