查尔酮合酶基因重复-歧化的遗传学效应  

Genetic Effects of Duplication and Disproportionation of Chalcone Synthase Genes

作　　者：朱子超[1] 柴友荣[1] 杨光伟[1] 

机构地区：[1]西南大学农学与生物科技学院,重庆北碚400716

出　　处：《安徽农学通报》2009年第1期25-30,共6页Anhui Agricultural Science Bulletin

基　　金：国家863项目(2006AA10Z110)

摘　　要：基因的重复-歧化是生物进化的重要机制。查尔酮合酶(CHS)是类黄酮途径的第一个关键酶,影响植物的多种性状。本文综述了CHS基因经重复-歧化后的假基因化、亚功能化、新功能化、基因互作这4种遗传学效应的表现和发生原因,并从系统发生的角度综述了亚功能化和新功能化的成员在分子进化树上的聚类式样。Duplication and disproportionation of genes is an important evolutionary mechanism. Chalcone synthase （CHS） is the first key enzyme in the flavonoid pathway and affect many important traits of plants. This paper reviews the phenomena and reasons of the 4 genetic effects, i.e. pseudogenization, subfunetionalization, neofunctionalization, and interaction between duplicated genes, of duplication- disproportionation events of CHS genes. It also reviews the phylogenetic clustering patterns of CHS members that have undergone duplication and disproportionation.

关 键 词：查尔酮合酶 歧化 重复 基因互作 新功能化 假基因化 亚功能化 

分 类 号：Q554.7[生物学—生物化学]