Homeodomain-leucine zipper transcription factors (HDZip TFs) are known as modulators of morphogenesis in response to environmental stimuli and plant development programs. TaHDZipII-1 was isolated from a liquid part of endosperm at 3-6 DAP using the Y1H system and the synthetic cis-element -CAAT(G/C)ATTG- as bait (Lopato et al., Plant Methods. 2:3, 2006). It belongs to the second subfamily family of HDZip TFs. Q-PCR analysis detected very low levels of TaHDZipII-1 transcripts in all tested wheat tissues. All data obtained so far suggests involvement of TaHDZipII-1 in a modulation of cell elongation by negative regulation of the secondary cell wall biosynthesis.
