作物学报2017，Vol.43Issue(12)：1774-1783,10.DOI:10.3724/SP.J.1006.2017.01774
黄淮海地区大豆主栽品种对8个大豆疫霉菌株的抗性评价
Resistance Evaluation to Eight Phytophthora sojae Isolates for Major Soybean Cultivars in Huang-Huai-Hai Rivers Valley
摘要
Abstract
With the application of wheat stubble no-tillage cultivation technology, the occurrence rate of phytophthora root rot of soybean is getting higher in the Huang-Huai-Hai Rivers Valley. Therefore, it is crucial to investigate the resistance of the widely-grown soybean cultivars to phytophthora root rot and to screen disease-resistant resources for soybean improvement. In the current study, a total of 140 soybean cultivars, widely-grown in Huang-Huai-Hai Rivers Valley since the 1950s, were investi-gated for their response to eight strains of Phytophthora sojae through the hypocotyl inoculation method. Except that six cultivars were susceptible to all strains, 134 cultivars (95.7%) were resistant to 1–8 strains, including 83 cultivars (59.3%) resistant to 6–8 strains. A total of 65 reaction types in response to the eight strains were identified from the 134 resistant cultivars by means of 14 reference genotypes. Five reaction types produced by 19 cultivars fit the reaction-type profile of a known resistance gene or the combination of two genes. The remaining 60 reaction types by 115 cultivars were different from all reaction types of a single re-sistance gene or the combinations of two genes, indicating that theses cultivars might carry novel resistance gene(s)/gene combi-nation(s) against P. sojae. These results provide a guide in parent selection for pyramiding resistance genes in soybean cultivars with good agronomic backgrounds.关键词
大豆/疫霉根腐病/大豆疫霉/抗性基因/基因推导Key words
Soybean/Phytophthora root rot/Phytophthora sojae/Resistance gene/Gene postulation引用本文复制引用
李晓那,孙石,钟超,韩天富..黄淮海地区大豆主栽品种对8个大豆疫霉菌株的抗性评价[J].作物学报,2017,43(12):1774-1783,10.基金项目
本研究由国家自然科学基金项目(31471521), 国家现代农业产业技术体系建设专项(CARS-04), 国家公益性行业(农业)科研专项经费项目(201303018)和中国农业科学院农业科技创新工程资助.This study was supported by the National Natural Science Foundation of China (31471521), the China Agriculture Research System (CARS-04), the Special Fund for Agro-Scientific Research in the Public Interest (201303018), and the Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences. （31471521）
