Cell cycle arrest of stamen initials in maize sex determination
Jong Cheol Kim1, Hélène Laparra, Alejandro Calderón-Urrea
1Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520-8104, USA.
Genetics
|December 13, 2007
Abstract:
The maize sex determination pathway results in the arrest of stamen in ear spikelets and the abortion of pistils in both the tassel spikelets and in the secondary florets of ear spikelets. Arrested stamen cells showed no signs of DNA fragmentation, an absence of CYCLIN B expression, and an accumulation of the negative cell cycle regulator WEE1 RNA.
