Research Progress in Molecular Marker of Cytoplasm Male Sterility-related Gene in Onion（Allium cepa L.）
LIU Bing-jiang1 ☆，WANG Yu-tao2 ☆，MIAO Jun1，HUO Yu-meng1，YANG Yan-yan1，WU Xiong1*
（1Institute of Vegetables and Flowers，Shandong Academy of Agricultural Sciences，Shandong Provincial Key Laboratory for Biology of Greenhouse Vegetable，Shandong Branch，National Vegetable Improvement Center，Jinan 250100，Shandong，China； 2Institute of Agricultural Standards and Testing Technology for Agri-Products，Shandong Academy of Agricultural Sciences， Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety，Jinan 250100，Shandong，China）
洋葱是典型的异花授粉蔬菜作物，利用雄性不育系是进行洋葱杂交种选育的重要手段。传统的测交方法鉴定洋葱雄性不育基因型需要4～8 a 时间，通过开发洋葱细胞质雄性不育基因分子标记可以大大提高保持系选择效率，有助于揭示雄性不育作用机理。本文介绍了洋葱细胞质雄性不育的几种类型，对控制洋葱育性的细胞质与细胞核基因分子标记的研究进展进行了综述，讨论了分子标记技术的现状及存在的问题，并对应用前景进行了展望。
Onion is a representative cross-pollinated vegetable with obvious heterosis. Cytoplasmic male sterility（CMS）is used to produce hybrid onion seed. It takes 4-8 years of crossing and scoring of progeny phenotypes to identify the sterility-related genotype from an uncharacterized population. The development of molecular marker for cytoplasm male sterility-related genes can improve selection efficiency for maintainer line and be helpful to reveal mechanism of male sterility. This paper introduced several types of onion cytoplasm male sterility and reviewed the progress made in studying molecular marker of cytoplasm and nucleus genes. It also discussed the present status and problems existing in molecular marker technology and prospected its future of application.
