Genome-wide analysis and identification of inositol 1,3,4-trisphosphate 5/6-kinase gene family in maize (Zea Mays.L.)
ZHANG Zhongbao, LI Xianglong, WU Zhongyi, WEI Jianhua
Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences; Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Beijing 100097, China
Abstract:On the basis of maize genome database and bioinformatics method, we obtained maize ITPK family genes and their positions on chromosome and duplication information. ITPK proteins were classified according to their phylogenetic relationship. A total of 6 ZmITPK genes were systematically identified from maize and located on 4 chromosomes. Multiple alignment and motif display results indicated that all ZmITPK proteins share two or three conserved ATP-grasp-4 domains. Phylogenetic analysis revealed that the ZmITPK family could be divided into three groups. Microarray data showed that the ZmITPK genes had tissue-specific expression patterns in various maize developmental stages and in response to biotic and abiotic stresses. The results indicated that ZmITPK2 and 3 were induced by drought stress in the maize inbred lines Han21 and Ye478. While, all of ZmTIFY genes were not induced by three pathogens.
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