摘要
[Objective] This study aimed to develop ACGM markers for the clustering analysis of large grained Brassica napus materials. [Method] A total of 44 pairs of ACGM primers were designed according to 18 genes related to Arabidopsis grain development and their homologous rape EST sequences. After electrophoresis, 18 pairs of ACGM primers were selected for the clustering analysis of 16 larger grained samples and four fine grained samples of rapeseed. [Result] PCR result showed that 2-6 specific bands were respectively amplified by each pair of primes, and all the bands were polymorphic and repeatable, suggesting that the optimized ACGM markers were useful for clustering analysis of B. napus species. Clustering analysis revealed that the 20 rapeseed samples were divided into three clusters A, B, and C at similarity coefficient 0.6. Then, the clusters A and B were further divided into five sub clusters A1, A2, A3, B1 and B2 at similarity coefficient 0.67. [Conclusion] This study will provide theoretical and practical values for rape breeding.
[目的]利用AGGM标记对甘蓝型油菜大籽粒材料进行聚类分析。[方法]根据18个拟南芥籽粒发育相关基因,并结合同源油菜EST序列,设计开发44对ACGM引物。选择其中18对引物对16份大籽粒材料和4份小籽粒材料进行聚类分析。[结果]这18对引物分别稳定扩增出2-6条特异条带,扩增差异明显,多态性丰富,重复度高,表明优化的ACGM标记在甘蓝型油菜中具有良好的通用性。聚类结果显示20份材料在相似系数0.6处分为A、B、C3个类群,其中A、B类又可在相似系数0.67处分为A1、A2、A3、B1、B2五个亚群。[结论]为下一步利用这些材料进行育种及相关科研工作提供一定的理论基础。
基金
Supported by the National Natural Science Foundation of China(30860147)
Open Funds of National Key Laboratory of Crop Genetic Improvement(ZK200902)
Natural Science Foundation of Yunnan Province(2011FB117)~~
