关键词: 小麦 抗叶锈基因 中间偃麦草 差异显示

Abstract:

Leaf rust is one of the most important diseases in wheat throughout the world. The use of resistant cultivars is the most economical, effective and safest method in leaf rust disease control. Up to date now, 55 leaf rust resistance genes have been formally named, but most of them have lost resistance against leaf rust. The resistance gene Lr38 derived from Agropyron intermedium, expressed high resistant levels for leaf rust disease. The study analyzed the differentially expressed bands between the leaf rust resistance gene Lr38 and Thatcher. A 425 bp band had been found by cloning and sequencing, which maybe related with the leaf rust resistance gene.

Key words: wheat, leaf rust resistance gene, agropyron intermedium, DDRT mRNA-DDRT