小麦多酚氧化酶研究进展  

The Review on Polyphenol Oxidase in Wheat

作　　者：蔡华[1] 王世清[2] 乔玉强[3] 

机构地区：[1]安徽科技学院生命科学学院,安徽凤阳233100 [2]安徽省怀宁县农科所,安徽安庆246112 [3]安徽农业大学农学院,安徽合肥230036

出　　处：《安徽科技学院学报》2007年第2期19-23,共5页Journal of Anhui Science and Technology University

基　　金：安徽省教育厅自然科学研究项目(2006KJ142C);安徽省高校青年教师科研资助计划项目(No.2006jql198);安徽科技学院自然科学研究项目(No.2RC200547)

摘　　要：多酚氧化酶(polyphenol oxidase,PPO)是引起面条等面制食品颜色褐变的主要因素,研究小麦多酚氧化酶活性的遗传规律及其与面团色泽的关系对改良面粉色泽具有重要意义。多酚氧化酶活性是受多基因控制、且遗传力低的数量性状,易受环境条件影响,发掘可应用于小麦多酚氧化酶活性辅助选择的分子标记,将有助于小麦面粉颜色性状的遗传改良。本文综述了小麦多酚氧化酶的生理功能及作用机理,重点阐述了小麦多酚氧化酶的基因定位、分子标记及遗传分析对低多酚氧化酶活性小麦新品种选育及遗传研究的意义。Polyphenol oxidase （PPO） is a major factor causing undesirable brown discoloration of wheat - based end products such as noodles. It is important to study the relation between PPO genetic law and color of wheat dough. PPO activity is a quantitative character controlled by multigene, with low heritability. It is important to identify molecular markers associated with PPO activity for marker - assisted selection （MAS） in genetic improvement of wheat flour. The physiological function and action mechanism of wheat PPO were reviewed in this paper, with focuses on some important contents , such as gene localization, molecular markers, genetics analysis and their meanings to the new wheat variety breeding of low PPO activities and genetics research.

关 键 词：小麦 多酚氧化酶 数量性状 分子标记 基因定位 遗传改良 

分 类 号：S512.1[农业科学—作物学]