as revealed by immunolocalization in Haemanthus endosperm cells,
appear first in association with the prophase spindle and then concentrate within individual kinetochore fibres, in accordance with their role in MT convergence (Smirnova et al., 1998). Similarly, a kinesin-like protein with minus end-directed motility labels kinetochore fibres and branches across the equator plane (Liu et al., 1996). Such a motor may be functionally related to dynein motors in animal cells.