%A LIN Yuan-Yuan- , YU Di-Qiu %T Expression Profiles of Arabidopsis thaliana VQ Gene Family in DefenseRelated Hormones Treatments %0 Journal Article %D 2012 %J Plant Diversity %R 10.3724/SP.J.1143.2012.12032 %P 509-518 %V 34 %N 5 %U {https://journal.kib.ac.cn/CN/abstract/article_33094.shtml} %8 2012-10-25 %X
Several VQ proteins are recently identified as WRKY factorsinteracting partners in Arabidopsis and involved in regulating physiological processes. Searching of genomic databases found that VQ gene family is specific to land plants and these VQ genes encode proteins characteristic of a conserved VQmotif. It consists of 34 representatives in Arabidopsis and can be divided into two groups based on the similarity of the amino acid sequences. To understand the functions of Arabidopsis VQ proteins, we examined the expression profiles of AtVQ genes in various defenserelated hormones treatments. qRTPCR analysis revealed that a majority of them were differently regulated in response to salicylic acid (SA), methyl jasmonate (MeJA), or 1aminocyclopropane1carboxylate (ACC). And some members are induced by two of these three hormones. Moreover, four members (AtVQ3, AtVQ18, AtVQ23 and AtVQ24) are induced by SA, MeJA and ACC simultaneity. However, there is only one AtVQ gene (AtVQ27) is upregulated after spraying of abscisic acid (ABA). These results suggest that Arabidopsis VQ genes may be involved in plant defense responses.