Genetic Diversity of Soybean and the Establishment of a Core Collection Focused on Resistance to Soybean Cyst Nematode

作     者：Yan-Song Ma Wen-Hui Wang Li-Xia Wang Feng-Ming Ma Pei-Wu Wang Ru-Zhen Chang Li-Juan Qiu 

作者机构：Institute of Crop Science Chinese Academy of Agricultural Sciences National Key Facility of Crop Gene Resources and Genetic Improvement Crop Germplasm and Biotechnology Ministry of Agriculture Beijing 100081 China Jilin Agricultural University Changchun 130118 China Northeast of Agricultural University Harbin 150030 China 

出 版 物：《Journal of Integrative Plant Biology》 (植物学报（英文版）)

年 卷 期：2006年第48卷第6期

页      面：722-731页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 0901[农学-作物学] 0703[理学-化学] 0902[农学-园艺学] 

基　　金：Supported by the State Key Basic Research and Development Plan of China(2004CB117203) National Key Technologies R & D Program in the 10th Five-Year Plan(2004BA525B06) the Hi-Tech Research and Development (863) Proaram of China(2003AA207060) 

主　　题：applied core collection resistance simple sequence repeat marker soybean soybean cyst nematode 

摘      要：Soybean cyst nematode （SCN; Heterodera glycines） Is one of the most Important pests affecting soybean production. The best method of control of SCN is through the development of resistant cultlvars. However, limited progress has been made in soybean breeding In China because most modern cultlvars have no resistance to SCN. The distribution and phenotype of 432 immune or highly resistant Chinese accessions were surveyed and a primary core collection was selected as a representative sample for further analyses. Using evenly distributed simple sequence repeat markers, five selection methods were applied to the primary core collection and the optimal method was chosen to establish a core collection, which consisted of 28 accessions. These encompassed 70.8% of the ailelic variation present in the overall resistant collection. The 28 accessions differed from the reference resistant accessions at the genomlc level, Indicating that Chinese resistant accessions are distinct from known resistant accessions. This applied core collection provides a rational framework for undertaking diversity surveys, using genetic variation for the investigation of complex traits and for the discovery of novel traits.