Li Hongjie, Wang Xiaoming
The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
J Genet Genomics. 2009 Sep;36(9):557-65. doi: 10.1016/S1673-8527(08)60147-2.
Thinopyrum ponticum and Th. intermedium provide superior resistance against various diseases in wheat (Ttricum aestivum). Because of their readily crossing with wheat, many genes for disease resistance have been introduced from the wheatgrasses into wheat. Genes for resistance to leaf rust, stem rust, powdery mildew, Barley yellow dwarf virus, Wheat streak mosaic virus, and its vector, the wheat curl mite, have been transferred into wheat by producing chromosome translocations. These genes offer an opportunity to improve resistance of wheat to the diseases; some of them have been extensively used in protecting wheat from damage of the diseases. Moreover, new resistance to diseases is continuously detected in the progenies of wheat-Thinopyrum derivatives. The present article summaries characterization and application of the genes for fungal and viral disease-resistance derived from Th. ponticum and Th. intermedium.
长穗偃麦草和中间偃麦草对小麦（普通小麦）的多种病害具有优异抗性。由于它们易于与小麦杂交，许多抗病基因已从小麦草导入小麦。通过产生染色体易位，已将抗叶锈病、茎锈病、白粉病、大麦黄矮病毒、小麦线条花叶病毒及其传播介体小麦曲叶螨的基因转入小麦。这些基因提供了提高小麦抗病性的机会；其中一些已被广泛用于保护小麦免受病害侵害。此外，在小麦 - 长穗偃麦草衍生物的后代中不断检测到新的抗病性。本文综述了源自长穗偃麦草和中间偃麦草的真菌和病毒抗病基因的特性及应用。
