The
Maternally Expressed WRKY Transcription Factor TTG2 Controls
Lethality in Interploidy Crosses of Arabidopsis
Brian P. Dilkes, Melissa Spielman, Renate Weizbauer, Brian
Watson, Diana Burkart-Waco, Rod J. Scott, and Luca Comai
Hybrid lethality in crosses between diploids and tetraploids, plants
with whole genome duplication, is determined by an epidermal regulator
expressed in the maternal tissue that envelops the seed.
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