桂花叶色变化机理及育种研究进展  

Advances in Leaf Color Change Mechanism and Breeding of Osmanthus fragrans

作　　者：涂勋良 蒋彧[1] 秦帆[1] 汪锦 万斌[1] TU Xunliang;JIANG Yu;QIN Fan;WANG Jin;WAN Bin(Horticulture Research Institute,Sichuan Academy of Agricultural Sciences/Key Laboratory of Biology and Germplasm Improvement of Horticultural Crops(Southwest Regions),Ministry of Agriculture and Rural Affairs,Chengdu 610066)

机构地区：[1]四川省农业科学院园艺研究所/农业农村部西南地区园艺作物生物学与种质创制重点实验室,成都610066

出　　处：《中国农学通报》2024年第28期42-50,共9页Chinese Agricultural Science Bulletin

基　　金：四川省财政专项项目“桂花种质资源创新及育种技术研究”(2016CYTS016);四川省财政专项项目“桂花育种技术研究及种质资源创新”(2021XKJS037)。

摘　　要：笔者简述了彩叶桂的基本定义,并依据其叶色变化将现有新品种划分为纯色和复色(嵌合体)2种类型,阐述了彩叶中叶绿素、类胡萝卜素和花色素苷3种色素种类、含量及其比例变化规律,影响因素及叶色变化机理,总结了桂花杂交育种、诱变育种和基因工程育种技术的特点及应用现状,提出应加强彩叶桂基因功能分析和育种技术创新,获得具有优异性状、适应性强与观赏性佳的突破性新品种,推动彩叶桂育种工作持续发展。The author briefly outlined the fundamental concepts of the Osmanthus fragrans colour group and categorized the existing new varieties based on leaf coloration-emerging into two types of monochromatic and polychromatic(chimera).This article elaborated on the three types of pigments presented in the leaveschlorophyll,carotenoids,and anthocyanins,their contents and ratios,as well as the influencing factors and leaf color change mechanisms.Furthermore,it summarized the characteristics and current applications of crossbreeding,mutation breeding,and genetic engineering in O.fragrans.It also suggested strengthening the functional analysis of genes involved in the O.fragrans colour group and innovation in breeding technology,to obtain breakthrough new varieties with superior traits,strong adaptability,and excellent ornamental qualities,aiming to propel the continuous development of the O.fragrans colour group breeding program.

关 键 词：桂花 叶色变化 色素 嵌合体 育种 

分 类 号：S685.13[农业科学—观赏园艺]