© The Rockefeller University Press $30.00
The Journal of Cell Biology
Cite by DOI: 10.1083/jcb.200710018 JCB 1 of 9
Correspondence to J. Ahringer: firstname.lastname@example.org
S. Moreno's permanent address is Centro de Investigacion del Cancer, Consejo
Superior de Investigaciones Científicas, Campus Miguel de Unamuno, University
of Salamanca, 37007 Salamanca, Spain.
Abbreviations used in this paper: MEX, muscle excess; NEBD, nuclear envelope
breakdown; PAR, partitioning defective.
The online version of this paper contains supplemental material.
During development, cell cycle lengths vary for different cell
types, and this is important for the determination of their fates
and functions. Misregulation of cell cycle length can cause
unregulated growth, abnormal cell fates, gastrulation defects,
and other developmental abnormalities and diseases. The Cae-