生物技术通报 ›› 2014, Vol. 0 ›› Issue (11): 1-6.

• 综述与专论 •    下一篇

甘薯遗传作图策略研究与展望

梁雪莲1,谢振文2   

  1. 1.仲恺农业工程学院生命科学学院,广州 510225;2.仲恺农业工程学院农学院,广州 510225
  • 收稿日期:2014-02-19 出版日期:2014-11-07 发布日期:2014-11-07
  • 作者简介:梁雪莲,女,博士,教授,研究方向:农作物基因工程和分子标记

Research Progress and Prospect on the Genetic Mapping Strategy of Sweet Potato

Liang Xuelian1,Xie Zhenwen2   

  1. 1. College of Life Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225;2. College of Agronomy, Zhongkai University of Agriculture and Engineering, Guangzhou 510225
  • Received:2014-02-19 Published:2014-11-07 Online:2014-11-07

摘要: 甘薯分子遗传图谱的建立对甘薯分子育种技术体系的拓展和应用具有重要意义。当前,对甘薯分子遗传图谱的研究虽然取得一定的进展,但存在着很多技术瓶颈,如作图策略应用和优化等。总结了甘薯经典和分子遗传研究进展,剖析了甘薯分子遗传图谱作图的3种方法与策略;探讨和提出了提高甘薯作图效率和质量的途径主要是:优化作图群体质量、克服偏分离、整合多群体间遗传连锁图谱和选择合适的分子标记类型;并指出染色体关联在遗传作图中的重要性,提出甘薯分子育种领域亟待加强的方面,以期为今后甘薯精密分子图谱的建立及基于分子图谱的甘薯分子育种提供新的思路。

关键词: 甘薯, 遗传图谱, 优化策略

Abstract: The establishment of the sweet potato molecular genetic map is of great significance on development and application of molecular breeding technology system. At present, while studies of sweet potato molecular genetic mapping have being made certain progress, still there are a lot of technical bottlenecks, such as application and optimization of mapping strategy. The paper firstly summarized the genetic research progress of sweet potato in both classical and molecular aspects;and three methods and strategies of molecular genetic mapping on sweet potato were analyzed in detail;then the approaches of improving efficiency and quality of sweet potato mapping were discussed, including optimizing the quality of mapping groups, overcoming the partial separation of progeny, integrating genetic linkage maps derived from different groups, and choosing appropriate molecular markers;finally, the importance of chromosome association in genetic mapping was emphasized, and what need to be enhanced in the field of molecular breeding was also put forwarded. All of these were in order to establishing a precise molecular graph and providing new ideas on sweet potato molecular breeding using genetic map.

Key words: Sweet potato , Genetic map , Optimization strategy