Assembling the Fungal Tree of Life

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Nuclear Division - Illustrated


Location code / cell type
  • ME, meiosis
  • MI, mitosis
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1. Centriole
2. Basic organization of the spindle pole
3. Microtubules in spindle pole body in circle perpendicular to nuclear envelope
4. Spindle pole body form, interphase-prophase
5. Spindle pole body form, metaphase-anaphase
0, quadilateral plaque with intact nuclear envelope and internal microtubule organizing center

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1, unlayered disc with intact nuclear envelope and internal microtubule organizing center

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2, a 2-layered disc with intact nuclear envelope and internal microtubule organizing center

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3, a 4-layered disc directly connected to spindle

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4, a 5-layered disc directly connected to spindle

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5, a 7-9-layered disc directly connected to spindle

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6, an ellipsoid that expands by more than 100% of its interphase-prophase size directly connected to spindle (Auricularia)

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7, a globoid that expands by more than 100% of its interphase-prophase size directly connected to spindle

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8, a globoid with limited enlargement directly connected to spindle

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9, a subgloboid with flat internalized layer directly connected to spindle (Microbotryum)

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a, a subgloboid with internalized layer convex with respect to the spindle and directly connected to spindle (Tilletia/Ustilago)

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b, notched ring with persistent half middle piece and clear zone between intranuclear component and nuclear envelope

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c, ring(s) containing microtubules but lacking centriolar 9-fold symmetry

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d, slight amount of extranuclear and intranuclear material on either side of nuclear envelope

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e, centriolar-associated extranuclear and intranuclear components with intact nuclear envelope

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f, centriole associated material

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g, ring containing microtubules with centriolar 9-fold symmetry

h, bar and spindle microtubules often terminating within nucleus some distance from nuclear envelope

6. Spindle development site
7. Spindle pole body migration (per Heath, 1980, Int. Rev. Cytol. 64:1)
8. Metaphase nuclear envelope
9. Telophase nuclear envelope
10. Perinuclear endoplasmic reticulum
11. Spindle vesicles
12. Central spindle
13. Metaphase plate
14. Spindle pole body cap
15. Interphase chromatin condensation
16. Nucleolus behavior
17. Transient intranuclear element at late interphase-prophase




References associated with character state illustrations








PDF documents

Character list


Glossary


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