A systematic view of the rice calcineurin B-like protein interacting protein kinase family

作者：Giong Hoi Khoanh; Moon Sunok; Jung Ki Hong^*

来源：Genes & Genomics, 2015, 37(1): 55-68.

DOI：10.1007/s13258-014-0229-2

• OsCIPK family
• Circadian regulation
• Meta-anatomical expression analysis
• Phylogenomic analysis
• Rice

Calcium (Ca2+), as a universal second messenger, plays an important role in various signal transduction pathway networks in plants. There are several components of Ca2+ mediating signaling pathways including calcium-dependent protein kinases, calmodulin and calcineurin B-like proteins (CBLs), and CBL-interacting protein kinases (CIPK). Here, we provide a systematic view of 33 rice CIPK (OsCIPK) family members, which are further classified into seven subgroups. The integration of various meta-expression data such as anatomy, diurnal regulation, and phylogenomic tree context of the OsCIPK family reveals that 11 of the family members show preferred expression in leaves during vegetative growth. In addition, 20 OsCIPK genes show peak expression during the day, while none of the genes peaked expression in the dark. Regarding abiotic stress, 16 OsCIPK genes were induced by drought stress in leaf organs; of these, 14 OsCIPK genes showed up-regulation and two OsCIPK genes were down-regulated based on quantitative RT-PCR analyses. We then developed a functional gene network that consists of 15 out of the 16 genes. This network proposes a useful hypothetical model to understand the molecular mechanism of drought response and circadian regulation associated with OsCIPK family genes.

• 出版日期2015-1