Genome-Wide Identification of the AGC Protein Kinase Gene Family Related to Photosynthesis in Rice ( Oryza sativa ).

The cAMP-dependent protein kinase A, cGMP-dependent protein kinase G and phospholipid-dependent protein kinase C (AGC) perform various functions in plants, involving growth, immunity, apoptosis and stress response. gene family is well described in , however, limited information is provided about genes in rice, an important cereal crop. This research studied the gene family in the AA genome species: ssp. , ssp. , , , , , , and were searched and classified into six subfamilies, and it was found that these species have similar numbers of members. The analysis of gene duplication and selection pressure indicated that the gene family expanded mainly by segmental or whole genome duplication (WGD), with purifying selection during the long evolutionary period. RNA-seq analysis revealed that of subfamily V were specifically highly expressed in leaves, and the expression patterns of these genes were compared with that of photosynthesis-related genes using qRT-PCR, discovered that , , and might participate in photosynthesis. These results provide an informative perspective for exploring the evolutionary of gene family and its practical application in rice.