花叶芋育种研究进展  

Recent Progress in Caladium Breeding and Genetic Research

作　　者：刘金梅 Cao Zhe 尤毅 钟荣辉 Deng Zhanao LIU Jinmei;CAO Zhe;YOU Yi;ZHONG Ronghui;DENG Zhanao(Environmental Horticulture Research Institute,Guangdong Academy of Agricultural Sciences/Guangdong Key Lab of Ornamental Plant Germplasm Innovation and Utilization/Guangzhou Municipal Engineering and Technology Center for Potted Tropical Ornamental Plant,Guangzhou 510640,China;University of Saskatchewan,Department of Plant Sciences,Saskatoon,SK,S7N 5A8,Canada;University of Florida,Department of Environmental Horticulture,Gulf Coast Research andEducation Center,Wimauma,FL33598,USA)

机构地区：[1]广东省农业科学院环境园艺研究所广东省园林花卉种质创新综合利用重点实验室广州市热带盆栽观赏植物工程技术研究中心,广州510640 [2]University of Saskatchewan,Department of Plant Sciences [3]University of Florida,Department of Environmental Horticulture,Gulf Coast Research and Education Center

出　　处：《园艺学报》2018年第9期1791-1801,共11页Acta Horticulturae Sinica

基　　金：广东省农业科学院环境园艺研究所创新能力建设项目(2017A070702008);广东省对外科技合作项目(2013B050800020)

摘　　要：对花叶芋种质资源、新品种选育和育种技术等方面取得的研究进展进行了综述。国内外花叶芋研究进展主要集中在以下6个方面:分子和细胞水平上对种质资源的亲缘关系和遗传多样性分析;主要育种目标为选育出纯色系列、抗病、耐日晒新品种;抗病基因的克隆和分子标记开发;从形态学、细胞学、分子水平检测无性系变异单株,得出变异单株形态变化由染色体数改变和等位基因缺失引起;建立了转基因遗传转化体系;分析了叶片重要性状的遗传规律,绘制出遗传图谱。并对今后花叶芋育种研究方向提出了建议。This paper reviews the major progress that has been made in caladium breeding and genetic research in recent years. The genetic relationship and genetic diversity among caladium species and cultivars have been characterized at the molecular and cellular levels. Numerous new cultivars with improved foliar and plant characteristics,disease resistance,and sun tolerance have been developed and released,which has helped expand the use of caladium. Identification and cloning of some disease resistance genes and development of molecular markers have been reported. Caladium somaclonal variants have been investigated at the morphological,cellular,and molecular levels,and it has been shown that morphological changes in caladium somaclonal variants often result from chromosome number changes and allele loss. Techniques for genetic transformation and protoplast culture have been reported in caladium. The mode of inheritance for several important foliar characters has been uncovered,and genetic linkage maps for gene loci controlling these foliar characters have been developed. Future research directions and breeding objectives have been proposed to advance caladium breeding and genetic research.

关 键 词：天南星科 观叶植物 育种 性状改良 

分 类 号：S682.1[农业科学—观赏园艺]