A comparative genomic analysis of plant hormone related genes in different species

作     者：Zhiqiang Jiang Hongwei Guo 

作者机构：Laboratory of Protein Engineering and Plant Genetic Engineering College of Life Sciences Peking University Beijing 100871 China 

出 版 物：《Journal of Genetics and Genomics》 (遗传学报（英文版）)

年 卷 期：2010年第37卷第4期

页      面：219-230页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 1001[医学-基础医学(可授医学、理学学位)] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 081202[工学-计算机软件与理论] 

基　　金：supported by the National Science Foundation of China (No.30625003,and 30730011) the China Ministry of Education (No.20060047) 

主　　题：comparative genomics Arabidopsis hormone related gene plant hormone orthologue 

摘      要：Plant hormones are small molecules that play important roles throughout the life span of a plant, known as auxin, gibberellin, cyto- kinin, abscisic acid, ethylene, jasmonic acid, salicylic acid, and brassinosteroid. Genetic and molecular studies in the model organism Arabidopsis thaliana have revealed the individual pathways of various plant hormone responses. In this study, we selected 479 genes that were convincingly associated with various hormone actions based on genetic evidence. By using these 479 genes as queries, a genome-wide search for their orthologues in several species （microorganisms, plants and animals） was performed. Meanwhile, a com- parative analysis was conducted to evaluate their evolutionary relationship. Our analysis revealed that the metabolisms and functions of plant hormones are generally more sophisticated and diversified in higher plant species. In particular, we found that several phytohor- mone receptors and key signaling components were not present in lower plants or animals. Meanwhile, as the genome complexity in- creases, the orthologue genes tend to have more copies and probably gain more diverse functions. Our study attempts to introduce the classification and phylogenic analysis of phytohormone related genes, from metabolism enzymes to receptors and signaling components, in different species.