数字农科院2.0

A new pathotype characterization of Daxing and Huangyuan populations of cereal cyst nematode (Heterodera avenae) in China

文献类型： 外文期刊

作者： Huang Wen-kun;Peng Huan;Liu Shi-ming;Wang Gao-feng;Kong Lin-an;Peng De-liang

作者机构：

关键词： cereal cyst nematode;Heterodera avenae;Daxing population;Huangyuan population;pathotype

期刊名称： JOURNAL OF INTEGRATIVE AGRICULTURE

ISSN： 2095-3119

年卷期： 2015 年 14 卷 4 期

页码：

收录情况： SCI

摘要： The cereal cyst nematode (CON, Heteroder aavenae) causes serious yield loss on cereal crops, especially wheat, worldwide. Daxing population in Beijing City and Huangyuan population in Qinghai Province, China, are two CON populations. In this study, the CON pathotypes of Daxing and Huangyuan populations were characterized by tests on 23 standard "International Test Assortment" with the local species Wenmai 19 as the susceptible control. Tested materials were grouped by three nematode populations' virulence on resistant genes (Rha1, Rha2, Rha3, Cre1) and nonresistant genes, varieties and lines. Both Daxing and Huangyuan populations were avirulent to Ortolan (Ha1). Barley cvs. Ortolan, Siri, Morocco, Bajo Aragon 1-1, and Martin 403-2 were all resistant to both populations. Cultivars Herta, Harlan 43 and wheat Iskamish-K-2-light were all susceptible to Huangyuan population, all of them, however, were resistant to Daxing population. The other five oats were all resistant to the two tested CON populations. Except Iskamisch K-2-light, all the other wheat cultivars (Cape, LorosxKoga, AUS 10894, and Psathias) were susceptible to Daxing population. Because the pathotypes of the two tested CON populations in Beijing and Qinghai were not identical to any of the 13 pathotypes previously characterized by the test assortment, we classified Daxing and Huangyuan populations as the new pathotypes, named Ha91.

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