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Effective Resources in Wheat and Wheat-Thinopyrum Derivatives for Resistance to Heterodera filipjevi in China

文献类型： 外文期刊

作者： Li, Hongjie 1 ; Cui, Lei 2 ; Li, Honglian 2 ; Wang, Xiaoming 1 ; Murray, T. D. 6 ; Conner, R. L. 7 ; Wang, Lijian 4 ; Gao 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China

2.Henan Agr Univ, Coll Plant Protect, Zhengzhou 450002, Peoples R China

3.China Agr Univ, Dept Plant Pathol, Beijing 100193, Peoples R China

4.Hebei Normal Univ Sci & Technol, Coll Life Sci, Qinhuangdao 066004, Peoples R China

5.Shanxi Acad Agr Sci, Inst Crop Sci, Taiyuan 030032, Peoples R China

6.Washington State Univ, Dept Plant Pathol, Pullman, WA 99163 USA

7.Agr & Agri Food Canada, Morden Res Stn, Morden, MB R6M 1Y5, Canada

期刊名称：CROP SCIENCE （ 影响因子：2.319； 五年影响因子：2.631 ）

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收录情况： SCI

摘要： Cereal cyst nematode (CON) is becoming one of the important soil-borne pathogens in wheat (Triticum aestivum L.) monocropping or wheat-maize (Zea mays L.)-wheat cropping systems of central China. Heterodera filipjevi (Madzhidov, 1981) Stelter, 1984 was recently recognized as a causal agent of CON in China, but little information is available on sources of resistance against this nematode species. The present study was initiated to determine the current status of resistance in wheat cultivars against H. filipjevi and to identify effective resources for improvement of CON resistance in China. A 3-yr field study of CON resistance that involved 174 wheat cultivars or wheat-Thinopyrum derivatives was conducted in a wheat field in Xuchang, Henan Province, China, where H. filipjevi had been present for years. Greenhouse experiments were conducted with representative resistant entries from each group of accessions. None of the 78 wheat cultivars and breeding lines from China was resistant in field tests. Wheat cultivar Madsen from Washington State was most resistant among the entries tested both in field and under controlled environment. New sources of resistance to H. filipjevi were identified in some wheat-intermediate wheatgrass [Thinopyrum intermedium (Host) Barkworth & D. R. Dewey] and wheat-tall wheatgrass [Thinopyrum ponticum (Podp.) Barkworth & D. R. Dewey] partial amphiploids, which will diversify resistance resources in enhancing resistance of wheat against CON.

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