华北农学报Issue(3)：193-198,6.
结球甘蓝霜霉病抗性鉴定与遗传分析
Identification and Genetic Analysis of Downy Mildew Resistance in Brassica oleracea var.capitata L.
摘要
Abstract
We confirmed that the pathogen of cabbage downy mildew was obligate cruciferae Hyaloperonospora parasitica,according to the symptom of the susceptive S101 in filed,and the result of pathogen microscopical exami -nation and re-inoculating on susceptive materials having no disease .Then did the genetic analysis by natural induc -tion in field and artificial inoculation in greenhouse ,the proportions of resistant plants and susceptive plants were 0.91∶1(in field)and 0.96∶1(in greenhouse)in the backcross population constructed by F 1 crossing susceptive par-ent S101,as are in accordance with 1∶1 separation rate assayed by the Chi-square test.In the F2 separation popula-tion,the proportions were 2.93∶1(in field)and 3.01∶1(in greenhouse),being in accordance with 3∶1 separation rate by the same test.Two kinds of resistance identification methods show that the resistance to downy mildew of these population is monogenic inheritance ,so we could use the artificial inoculation in cross stage to identify the re -sistance to cabbage downy mildew in entire seedling stage simply and fastly .关键词
结球甘蓝/霜霉病/抗性鉴定/遗传分析Key words
Headed cabbage/Downy mildew/Resistance identification/Genetic analysis分类
农业科技引用本文复制引用
于利,黄建新,王红,王神云,丁万霞,李建斌..结球甘蓝霜霉病抗性鉴定与遗传分析[J].华北农学报,2013,(3):193-198,6.基金项目
国家科技计划项目（2012AA100103）；江苏省农业科技自主创新资金项目（CX（12）2003）；江苏省农业三新工程项目（SXGC（2012）015） （）
