It has long been thought that gathering chromosomes during spindle assembly is exclusively the responsibility of microtubules. However, a recent study by Lénárt et al. shows that, in larger cells, a collapsing network of actin filaments ensnares and transports the chromosomes, bringing them in range for microtubule capture.
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Miller, A., Bement, W. An actin fishnet for DNA. Nat Cell Biol 7, 775–776 (2005). https://doi.org/10.1038/ncb0805-775
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DOI: https://doi.org/10.1038/ncb0805-775