Abstract: A hormonecytokinin (CK) activating enzyme, lonely guy (LOG) plays important roles inregulating the bud and root meristem activities on plants. From the informationof the entire Camellia sinensis genome, this study identified 13 LOGgenes in the plant. The structure, chromosome location, cis-elements, andexpression patterns of the genes were analyzed. It was found that these CsLOGswere unevenly distributed in chromosome and could be divided into G1 and G2sub-families based on their phylogenetic properties. Their gene structures werehighly conservative, and the cis-acting elements related to a variety ofhormones and abiotic responses. The CsLOGs mainly expressed in the buds,leaves, and flowers on a tea plant but varied by stress treatments. It suggestedthat the genes involved in a broad spectrum of the growth and development aswell as the responses to abiotic stresses of the plant.
Key words: Tea (Camelliasinensis); LOG gene family; genome identification; gene expression analysis