Abstract
The lin-14 locus of Caenorhabditis elegans plays an important role in specifying the normal timing and sequence of developmental events in the lateral hypodermal cell lineages. The results of gene dosage, complementation, and temperature-shift experiments indicate that the fates expressed by cells at successive stages of these cell lineages are specified by the level of lin-14 activity and that lin-14 acts at multiple times during development to control stage-specific choices of cell fate. Our observations suggest that during normal development a reduction in the level of lin-14 gene function causes the sequential expression of stage-specific cell fates.
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