Submitted to: Plant and Animal Genome VX Conference Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: October 15, 2006
Publication Date: January 14, 2007
Citation: Tai, Y., Simons, K.J., Xu, S.S., Faris, J.D. 2007. Identification of candidate genes associated with signaling networks regulated by the Q gene in wheat. Plant and Animal Genome VX Conference Abstracts. p. 300. Technical Abstract: The Q gene of wheat is a member of the AP2 class of transcription factors and has been shown to influence numerous morphological and domestication-related characters including plant height, days to heading, and leaf, spike, and seed morphology. Here, we show that Q-disrupted mutants have delayed germination and growth compared to the wild type when grown under stressful conditions such as cold and high salt, suggesting that the Q gene is also associated with tolerance to environmental stresses. To identify candidate genes involved with the transcriptional regulation networks of Q gene signaling pathways associated with environmental stresses, we used the yeast two-hybrid system to identify proteins that directly interact with the Q protein. Five potential Q interactors were identified and they included protein kinases, transcription factors, and a stress response protein. This work provides the basis for unraveling the signaling pathways and genetic networks governed by the Q gene.